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Splitting CO2? Answered

Is there a way to electronically split CO2 I want a strait answer no junk about it being to hard

Question by    |  last reply

CO2 hydrogenation (CO2 + hydrogen = methanol) how to ?

I am wondering if methanol production (as a byproduct of CO2 and hydrogen) would be possible as diy project  . I have been reading about CO2 hydrogenation that (as topic mentioned) would lead to methanol production. Methanol would be easier to store than hydrogen ,no needing special equipment (refrigerated containers ). Anyone familiar with this ? One of the patents available:;=PA7&dq;=co2+hydrogenation&hl;=en&ei;=J0PuTeT6KseD-wbZ_cX6Bw&sa;=X&oi;=book_result&ct;=result&resnum;=6&ved;=0CDIQ6AEwBQ#v=onepage&q;=co2%20hydrogenation&f;=false

Topic by gabdab    |  last reply

CO2 Battery Holder

Can some one make an instructable on how to make a battery holder out of a couple CO2 cartridges? 

Topic by elkaddalek    |  last reply

CO2 chemical sensor

Hi everybody, im currently doing a project on CO2 chemical sensor. So what im supposed to do now is to know how it works, and then eventually make them. I am trying to find websites that sell them, and buy it from them. Then me and my supervisor will dismantle them, and learn how it works. anyone know which websites sells them? and how does it works? If there are links to learn/read more about CO2/H20 chemical sensors. Please do post them here too. Thanks all.

Topic by wathell    |  last reply

CO2 valve question? Answered

Hi ... I would like to ask for your opinion about my idea : I got as a present a CO2 airsoft pistol. Unfortunately it's too powerful for the UK airsoft norms. So I would like to make it weaker. I took the magazine apart and I had a look at the valve. I find out, that the moving part in the valve (that release the CO2 from cartridge to the gun) is able to move cca 2mm. Now my question is : If I would limit the movement with "something" so that the moving part woudl move only 0.5-1mm ... would this make the gun weaker ??? Thank you for your opinion or any suggestions.

Question by zholy    |  last reply

CO2 breathing animals?

Obviously from what we see today, evolution branched off into two sides, the co2 producers, and the co2 users.  Now all animals that walk or swim the earth today breath in oxygen and out co2.  It may sound crazy, but have we not even attempted to produce oxygen making creatures.  Evolution just didn't really branch off to this kind of creature and it would be very difficult to create.  Todays Autotrophs don't produce enough energy for a large animal.  Trees and small single cell organisms use tiny amounts of energy, but could a hybrid allotroph, which gets the majority of its energy from eating like a normal cow, but then it also uses co2 and sunlight maybe, and then you can eat it.   Just a crazy thought that has always bugged me.

Question by    |  last reply

Mystery of the CO2 Balloons!

Filled some balloons w  co2  from dry ice in a soda bottle.   As expected, they act like a lens, a magnifier of sound. No mystery there. Just as a dense glass refracts light, the denser gas refracts sound. The mystery is why balloons filled with co2  leak down faster than identical balloons filled by mouth. Yes, there is some co2 in my exhaled breath, but it is mostly  n2,  and  o2.  I would hav expected the n2 and o2 to leak out more quickly, being smaller molecules. So whatzup wit dat?

Topic by Toga_Dan    |  last reply

CO2 analyzer (sensor)

Dear friends My research topic is about designing a chemical reactor for CO2 capture. I have designed an experimental reactor and I need to measure the concentration of CO2 in the outlet of the reactor. Accordingly, I need a CO2 analyzer (CO2 sensor) that would be able to measure the concentration of CO2 and record it in the computer. I have searched google, but I have not found too many products that can be used in my research. Could you inform me if you know any CO2 analyzer or sensor that meets the following criteria: 1) I need to record the variations in CO2 concentration in short periods of time, for example every 20 sec. The analyzer should have a data acquisition system or can be connected to data logger to record the data in the computer. 2) I need to change the flow rates every time I begin the experiment. The range of flow rate will be between 1 to 5 Lit/min. The flow gas usually contains 25% of CO2. While I appreciate your kind attention, I look forward to hearing from you soon. Best regards Saeb

Question by sbesarati    |  last reply

Co2 cartridge cannon? Answered

Hi ... in a quandary, and having problems on were to start.  Drawing a blank.  I need to develope a small Co2 cartridge Cannon that will be placed into a 1/12 scale RC airplane, that will be used to deploy a drouge parachute on command.  Can anyone provide me with a starting point?  Do you by chance have something all ready in your files that can be used.  The drouge shute when deployed, is 72" in diameter, and the package that contains the parachute is 3 x 3 x 3.  It needs to be projected at lease six feet from the airplane before opening up. Thank you very much,  for any assistance that you can provide.  Richard T Leiterman ( KE6RIM )

Question by ke6rim    |  last reply

CO2 land mine.

I have a great idea for a paint mine. If anybody has suggestions please tell me. Its my first. The reason I need help with this is because I have people Sneaking up in my tree fort at night and either want to shoot them with a BB (preferred) or soak them in paint. I like both. But I just want some suggestions on this. I am including the mine sketchup file in this post along with a pic. Thanks, Mike

Topic by magranger15    |  last reply

CO2 88 gram modification

Ok my fellow creators I am asking for your help. CO2 project is making  portable air tools without lugging around air compressor. Have pipe work and connections already done and modified the CO2 adapter to puncture canister when screwed in to release air. The problem I am having is once I attach an air tool it work fine, but after I release trigger air keeps flowing through because of to much pressure. If I read correctly its about 100 psi. Thought about direct connect from tool to air but I would like to be able to switch out tools. Have air tool change connectors at end right now. I do have high pressure shut off valve. Its just trying to regulate air flow with amount of pressure this thing releases. To be honest eventualy may be weaponized. Thanx in advance for your input. 

Topic by mkirbysplace    |  last reply

Most efficient CO2 sensor?

I found this CO2 sensor. Any one know of a better one?

Topic by hthnc-student    |  last reply

CO2 Cartridge discharge thrust?

I am trying to figure out how much thrust would be created with a full discharge of a typical small CO2 cartridge.  Way back when in High School we built CO2 powered drag racing cars in shop.  (I can't remember how we dischardged them?).  But I want to rig a similar device to discharge underwater.  I want it to give a "turbo boost" to a fairly heavy model boat after the boat gets moving a bit.   So it doesn't have to get the boat moving or up to a speed. It's more to give the boat a good push after it gets going. How much thrust would that generate? In water?  I could probably rig 2 cartridges to fire simultaneously on each side of the boat.

Question by JRSanDiego    |  last reply

CO2 gas flow detector

Hi all,  I have a 1/4 inch id plastic pipe fed by co2 at very low pressure, normally there is no flow,  but when there is flow (actually suction) I want to to operate a switch that allows flow from the source gas cylinder.  Can anybody help.  A friend can help with making components on a lathe.  Thank you.

Topic by grandad45    |  last reply

co2 powered nerf gun

Well I have been working on making a co2 powered nerf gun (NITE FINDER) for a couple of weeks now, with no success. So If you could give me ideas, or just make one it would be appreciated. ~thank you~

Topic by KrispyKr33m    |  last reply

Beer, brewing, bottling, and CO2

This started as an unrelated comment thread on a post about freezing blueberries. It seems like such a great topic I created this forum for it. Brewers? Ideas? Beergnome: I do it for a living ;) we force carbonate as a rule. we only naturally carbonate for special order casks. our economy of scale doesn't allow otherwise.. fezrock it is possible to create a counter pressure rig for judging bottles for your homebrew, I'm sure there is an instructable for it,, if not there should be. it requires you creating an envelope of CO2 in the bottle, then having a T rig that will take the beer under pressure in the bottle with counter pressure of CO2 to keep the dissolved CO2 in the beer in solution. Its a bit of work, but if you care about competition at all. a clean bottle always bumps up the score. Fezrock: Nice career! I'm still quite the novice, but practice makes better! As to your question, I haven't seen anything like it. Topping the bottle out with CO2 would help the end product, but wouldn't do much for pressure loss. Nitrogen would be similar, but whichever is the heavier gas (not sure) would be marginally better for this lo-tech solution. On a small scale, if a sealed environment could be created to fit your capper around your cap, more gas pressure could be applied. I imagine an upright lever capper would be needed to work that out. Thanks for that idea seed! On a larger scale, if you could cap in a larger chamber, you could set the CO2/N2 pressure in the chamber to whatever you needed it to be. This would also give you space to insert your brew without introducing air. Or just overcarbonate the brew to make up for carbonation loss to outgassing. Crazy idea: add a small amount of dry ice without freezing the brew. (you don't need leftover yeasts anyway!) It sounds like a fun experiment, and could be adjusted to suit your pressure needs.

Topic by fezrock  

Use a Co2 regulator for air?

Can I use a Co2 regulator to regulate high pressure air.  I am trying to build a high pressure system using a scuba tank or paintball/airsoft tank to operate air tools, pressurize pipes, fill tires, inflate balloons, dust work areas and computers, etcetera.  There are C02 regulators but not many 'air' regulators.  I just want to use air and not Co2.

Question by RandallIja    |  last reply

Gas (CO2) Operated Pump

So I was given a set of 6 of these pump, they are from a soda fountain system. Still has pressure gauges and lines attached. My question is, what can I do with these? Any ideas? I know that they are good for something, I'm just not sure what yet.

Topic by gollihughj    |  last reply

Does anyone know where to get a co2 engine? Answered

I want to make a co2 airplane.

Question by furrysalamander    |  last reply

????If hot CO2 gas is passed through a solution of NaOH+H2O, is it possible to get Na2CO3? In which state will it be in? Answered

What would be the efficiency of the system if the gas has high velocity?

Question by coepian    |  last reply

Nanotube Tech Transforms CO2 Into Fuel

What do we think about this?

Topic by SolarFlower_org    |  last reply

CO2 extraction, SFE build ideas?

I'm wanting to build a SFE co2 extraction "plant" home or garage unit...i am trying to use it with essential oil extraction projects...especially with cedarwood ( i have a successful steam distillation business, distilling and fractionating cedarwood oil and blending it with various carriers to provide my cedar based pesticides and lawn care products)...but i want to increase efficiency and potency, etc. the USDA did testing with cedar and co2 SFE and had great success. i am trying to build a unit...many ideas out there...but very few clear details, videos, pictures, etc... i want to use for cedar, algae, kelp, bamboo, etc....various essential oil products... the sad thing is i can find vague info from either large commercial units or from cannabis users... IDEA's ?!?!?!?!?

Question by IdeaVault    |  last reply

Uses for full 12g co2 cartridges Answered

A long time ago I had a co2 airsoft pistol, but it broke and now I have 2 full co2 cartridges that I can't use. Do you guys have any ideas for things I can do / make with them?

Question by BryanC46    |  last reply

CO2 canister discharge for arm mounted gun? Answered

I'm looking to modify a simple airsoft gun for the purposes of making the needed weapon props for a assassins creed costume a friend of mine is working on. With that said, the arm cannon/crossbow thing (sorry, I sadly never played the game!) is one I'm playing with now, and I got to thinking about taking a simple CO2 powered airsoft gun, and modding the barrel to take softer projectiles, and to be mounted to someones wrist. The question being: would the discharge from a CO2 cartridge harm someones hand? There will be leather between gun and wrist, by the way.

Question by DoctorWoo    |  last reply

Soda carbonation?

Hi I want to carbonate my own soda with co2 (everytime I use yeast it comes out wrong/disgusting). I know I need a co2 tank and a keg, but what do I need in between? (simplest system possible).

Question by rushfantomsawyer    |  last reply

CO2 cartridge + arduino ( need your help)

Hi "instructors" i want to build an arduino based project to release co2 cartridge when a sensor sends a certian value (i.e. light sensor) is there any adapter that fits on the cartridge and connects to an arduino ? tried looking online but could not find any.

Question by ayedh2010    |  last reply

Distance a 12g CO2 cartridge can launch a...?

What would you say the maximum distance a 12g CO2 cartridge could launch a ~12oz cylinder? The cylinder can be adjusted be top/bottom heavy or have its weight increased all around. The design of the barrel would (VERY) roughly look like the image at the bottom.  The cartridge would be in a housing unit at the butt of the launcher.  It would be set it off in a to-be-determined way, shooting out the cylinder(2 2/5inch diameter, 8 inches long, ~12 oz) that would be resting in front of it.

Question by Soldier62994    |  last reply

how to make a air powered short shot and stop air just passing by after the munition left the barrel?

Hey,i've got a question,i want to make a air pressured gun, but i wont make one that just lets you build up much pressure, and then in one single shot get's empty. i want to make it like a paintball gun, so you can shoot more than one time with the same pressure tank. i found this : that must axplain a bit how a paintball gun works. but i still don't get it. and i also found this:, so want to maybe combine those ideas, like make something in front of the nut of the explosive air-realese valve. that does the same thing as the paintball gun. something that knocks the valve back one time and then reloads itself. i don't have a clue how to do something like that, that's why i ask it.thanks for your time!

Question by rikels    |  last reply

Are Co2 (Carbon Dioxide) air systems refillable? Answered

The kind of Tank Im talking about is a Paintball air system. Are they refillable?

Question by Paintballer98    |  last reply

what would it take to make a co2 laser from scratch?

I think I have the basic concept, you take a full mirror and a one sided mirror, put them between a tube, pump in 10% co2 gas 5% argon or something inert, charge it with a neon transformer and a few welder's sticks for the anode and cathode respectively, then most of what comes out the one sided mirror should be laser emissions. I know I'm missing something though... any suggestions? I'm not worried about refining the beam into something that could: cut metal, make holes, be a nuisance to my neighbors, I just want a multi-watt laser in my barn that I could use to start my wood stove at the press of a comically big button.

Question by waldosan    |  last reply

Where can I find a CO2 sensor that will allow me to measure the concentration in a small space?

I'm doing an experiment where I'll be burning a candle in a closed box, and measuring the concentration of the carbon dioxide in the air. I need to be able to record a value for the concentration of the CO2. What's the best way

Question by suvayanr    |  last reply

I have 2 questions. 1, how do I refill a co2 powerlet at home?2, how does an airgun trigger work?

 I am building a co2 powered pen gun ( dont ask ) I plan for an extremely powerful gun.  Just keep in mind that here in arizona, united states, it is illegal for anyone under the age of 18 to buy duct tape.  I have loads of scotch tape, masking tape, packing tape, and rubberbands and a bike.

Question by bendog38    |  last reply

Carbonation and it's relationship with oxygen Answered

I have 2 random and somewhat contradicting questions: Can oxygen cause carbonation in liquid? Does oxygen decrease carbonation in liquids that are already carbonated? (soda) The more details, the better :)

Question by tb24    |  last reply

Think economically and scientifically to answer this big question

I live in a country call Myanmar in here we have often and long lasting blackouts.Mostly without reason or i don't know the reason....whatever my point is how to light my house or my country without harming the world (enviroment) and without complaining the Government???? FYI: Myanmar is a country in S.E Asia border with Thailand and India PS :In my country blackout is so often that everyone,who can afford, buys own generators,small ones, which uses fossil fuel and HARM OUR WORLD. thanks for reading my question .

Question by harrypoter    |  last reply

The World is a Complicated Place: "Eat whale and save the planet" - Norwegian lobby

This strikes me as laughable, but at least the issue is being properly framed. "Eat whale and save the planet" - Norwegian lobbyBy Alister Doyle, Environment CorrespondentOSLO (Reuters) - Eat a whale and save the planet, a Norwegian pro-whaling lobby said on Monday of a study showing that harpooning the giant mammals is less damaging to the climate than farming livestock.Environmental group Greenpeace dismissed the survey, saying almost every kind of food was more climate friendly than meat.The survey, focused on whale boats' fuel use, showed that a kilo (2.2 lbs) of whale meat represented just 1.9 kilo (4.2 lbs) of greenhouse gases against 15.8 for beef, 6.4 for pork and 4.6 for chicken."Basically it turns out that the best thing you can do for the planet is to eat whale meat compared to other types of meat," said Rune Froevik of the High North Alliance, which represents the interests of coastal communities in the Arctic."Greenhouse gas emissions caused by one meal of beef are the equivalent of eight meals of whale meat," the study said.The Norwegian-based Alliance said it was the first to measure the "carbon footprint" of whaling. Fish and seafood was comparable to whale meat with relatively low emissions.Norway and Japan, the two main whaling nations, are seeking new arguments to promote whale meat after years of condemnation from anti-whaling nations for breaking with a 1986 moratorium on all hunts meant to save many whale species from extinction.Oslo says, for instance, that the small minke whales it hunts are plentiful in the North Atlantic and that a 2008 Norwegian quota of 1,052 animals will not harm stocks. The meat is eaten mostly as steaks or in stews

Topic by ewilhelm    |  last reply

Using CO2 for a Jetpack blast off smoke prop?

Hey Guys! I'm making a jetpack for this upcoming Halloween. It's going to have lots of moving parts and cool stuff using an arduino, but the most important feature I want is a thick blast off smoke effect. I have been looking online, and it appears to me that a CO2 fire extinguisher would be great. However, these are expensive and not easily modified to be electronically triggered. I've considered a paintball CO2 can and a Sodastream. Will either of these give me the effect I desire, and is this plausible? I'd like the smoke to be at least as thick as the stock photo I attached, hopefully thicker and stronger. Thanks! I'll be sure to post pictures when I finish.

Topic by turtledrake    |  last reply

Is it possible to mount a CO2 tank on the side of a painball gun?

I am working on a paintball sniper project using a Tippmann 98 Custom as the base gun. I was wondering if it would be possible to mount a small CO2 can, maybe a 6 ounce, on the side of the gun without the bolt on it. I suppose I could just rig something up and attach it through the existing bolt holes, but I was wondering if there was a manufactured product that does this that I could work from. At the moment I have my tank mounted under the front barrel by way of a home-made rack. This works, but messes with the balance of the gun. any tips or links appreciated.

Topic by ilpug    |  last reply

'Revolutionary' CO2 maps zoom in on greenhouse gas sources

Researchers now have a better view of where carbon dioxide is being emitted thanks to Vulcan, a research project led by Kevin Gurney, an assistant professor at Purdue. This map shows where CO2 is being emitted in the continental United States in 10-kilometer grids and combines data from sources including factories, automobiles on highways and power plants. The map offers more than 100 times the detail of previous inventories of carbon dioxide. The image displays metric tons of carbon per year per grid in a logarithmic base-10 scale.more at Physorg

Topic by ewilhelm    |  last reply

Air sample analysis for the concentration of CO2/Carbon Dioxide? Answered

I'm working on a high school science fair project which concentrates on the CO2 emmissions of automobiles and anlyzes two methods of filtering CO2 from car exhaust. It's really a pretty simple project - except that i don't have a Carbon Dioxide monitor. Online they range from $200-800 and i've contacted the enviornmental department at a local university to see if they can help me. I'm still waiting on a reply but i'm wondering if any of you guys (or gals) have any ideas on how i can find the concentration of CO2 in car exhaust.

Question by Aaron Cole    |  last reply

Using a small solenoid to trigger a co2 hammer valve

Hello, I have a question that is integral to the design of a project i'm making. I am trying to make an airsoft gun. For a power source, I am using a 12 gram co2 powerlet. My main problem is the trigger mechanism. Since I want the design to be semiautomatic with no blowback, I decided on an electric trigger to avoid the long trigger pull associated with mechanical triggers. My valve is taken from an airsoft pistol magazine and is pretty small. It is operated by having the rear "button" of the valve hit with a simple hammer, which moves the valve pin and releases gas into the barrel. I want to use a small solenoid in place of the mechanical hammer. When activated, the solenoid's push end would snap forward and hit the valves "button." I was wondering if this is possible on any kind of smaller power supply? It doesn't seem like the valve button needs much more than a tap to dump a good amount of gas. All the projects i have seen like this are fairly large scale, for larger airguns, and they had to use large unreliable power supplies. I would like to keep this whole thing as lightweight as possible.  I was thinking that i could use a simple switch or circuit that would just dump some voltage into the solenoid for just a fraction of a second, to fire one shot for each trigger pull. Would this solenoid work? Also, the valve I am using is tiny, about an inch long. The "button" that needs to be tapped to release gas is about 6 mm in diameter.  Is there any way to calculate the exact amount of force needed to trigger the valve?  Does anyone have any advice for me? 

Topic by ilpug    |  last reply

Can I get a 20 pound CO2 cylinder filled with Helium? Answered

I recently got a 20 pound CO2 cylinder and was wondering if I would be able to get it filled with helium gas.

Question by workinprogress37    |  last reply

Are 12 gram co2 cartridges a viable power source for small rockets?

Would it be practically possible to use 12 gram CO2 cartridges like those used for bb guns to power small rockets? I have high hopes for this, but I don't know how well it would work. I am going to go do some ill-advised tests, but I would like to know if anyone has tried it and what I can expect.

Question by ilpug    |  last reply

3D or correctly 2.5D engravings on wood with a CO2 laser

Due a lack of correct forum sections I just post in the tech department, hoping the right people will find it ;) I did some tests with my CO2 laser cutter to find out how good or bad it works for 2.5D engravings. Turns out not too bad really. But during those tests I often noticed that I have areas where the wood is burnt while in areas with other power levels the wood is vaporised without charring, looks totally clean. So of course this meant further investigation on the topic but to my surprise my Google skills seem to get rusty as I could not find anything of use. As I am still planning to do a full Instructable on the topic of 2.5D engraving it was time to do more detailed tests myself. My machine uses an Arduino Mega as the controller, running on a modified MarlinKimbra release, so I had no problem adjusting all required parameters. Here are some of my findings so far: Once the power levels are high enough to do real damage to wood instead of just darkening it, there are levels that just vaporise the wood. I did not test the full power range but there seem to be several "sweet spots" for the power, above and below the wood will be burnt instead of a clean vaporising. Next step was to check this behaviour with changing PWM frewunecies for the laser firing. Started with a know power level that vaporises and adjusted only the PWM frequency. Lowering the frequency soon caused charring, increasing the frequency had very little effect. Next was a lower power level that with the original PWM frequency would charr the wood. Here lowering the frequency caused more charring, at quite low frequencies to the point that the kerf suffered massively. Increasing the frequency again allowed to find a sweet spot where the wood would vaporise rather than burn. So I am wondering if anyone else has done tests in this regard or knows of any links with more info?

Topic by Downunder35m    |  last reply

PVC Laser? Answered

I don't know if anyone on here knows hot to make a laser, but if you do can you make a CO2 laser with PVC instead of glass or do you need glass to direct the beam and such. 

Question by    |  last reply

British Columbia introduces carbon tax

VICTORIA -- Driving and other fuel-dependent activities are about to get more expensive as British Columbia becomes the first jurisdiction in North America to introduce a consumer-based carbon tax.The carbon tax will apply to virtually all fossil fuels, including gasoline, diesel, natural gas, coal, propane, and home heating fuel. B.C.'s carbon tax, the provincial government claims, will be the most comprehensive in the world.full article

Topic by ewilhelm    |  last reply

Land Area Rrequired to Power 100% of US Onroad Vehicles

This is an interesting image found in a recent Stanford energy seminar on "Review of solutions to global warming, air pollution, and energy security" by Mark Jacobson, available here: from the seminar, where this image is taken from, are here: of Gil Masters)

Topic by ewilhelm    |  last reply

Gas connections

Hey Guys.  I have a laser tag project that I am making. Now I want to put high pressure air recoil on it. With the HPA being in the magazine and the recoil being a blow back valve in the gun. The issue I have ATM is the connection between the gun and the magazine. I basically want it like a butane connection. I can't find anywhere that shows designs or standards for this though. Or anyone who sells these parts. Also I don't want to use a gas magazine as I have custom magazines and guns. Cheers. 

Topic by TrevorB42    |  last reply