compressing biogas
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- Опубліковано 23 жов 2022
- an additional safety concern: try not to pump the innertube completely empty. if you have negative pressure on the pump suction it will draw in air as you disassemble.
Link to air compressor: amzn.to/45juHEX
bruh I do not care whether you have no cameraman or a whole production crew. What I care about is what YOU can do. That is all that matters. as for your tutorial... excellent!!
Thank you. I really appreciate the support.
all the realistic productive people in the world think the same , we don t care for the decoration we only want the butter
The steel wool filter is to provide the sulfur something to stick to so the whole area doesn't smell like rotten shit, and it also prevents it from degrading the steel of whatever device the gas passes through.
"if you have no interest in compressing biogas... well... then don't" lol
Cameraman and editing is the icing. All about the information and its delivery. This was awesome. I dont have any means of doing this but Im glad to have the information now for the future when I do!
Wow finally someone who cracked the code successfully!!! I have been looking for this info for some time. Thank you very informative!!! Good luck with running your car and please consider posting your genius diy videos!!! Again thanks!
Nice vid! People that carry the Buddy Heater accessories typically have a hose with the old style left handed connector. In case anyone needs to know.
That tank fitting can be purchased at Lowes or home depot in the barbecue section.
love it. reminds me of my marriage deflating!!!
I like your setup. Thanks for showing us! 👍🏼
My pleasure. Thank you for the comment.
Great job bro, and f camera crew you do you ! Thanks for passing knowledge.. peace n abundance to you n you’re family
Inner tube removal would suggest using a expansion tank as in the one used for plumbing it's a steel tank with a rubber bladder inside is a vacuum pump to make the bladder inside expand and use an air compressor to compress the bladder inside to expel it there's no potential contamination and you can chill the tank and internal bladder safer smater and stream line. You can also get these tanks with internal bladders in 20- 200 gallon capasity no more inner tubes.
Thanks for sharing. GREAT INFORMATION ❤
Good job man! Thanks for the info
You could make a slow but high pressure compressor, perhaps combine a mini bike pump with a worm gear motor, very gentle cycle, run it all day.
That’s interesting what do you call that system? Any videos on that?
You are a such a genius
Excellent
Yeah! thanks so much!
Sure thing.
I am a CNG/LPG kit installer by profession and I compressed my biogas and run my cng car with it. Only thing you have to do is tune the kit a little richer just like you did with your stove/burner to compensate for the leaner gas. You get just a little less power but it works fine. My concern is that biogas has a small percentage of Hydrogen that might make the steel tanks brittle overtime and they might explode eventually under pressure. I have type 4 carbon cng tanks but am still afraid to use them as they are not rated for hydrogen. I have seen videos of cng tanks exploding and I don't want to experience this so I stopped doing it. If you can find a way to get rid of H2 then that would be great. They say that H2 molecule is so small that it goes through any tank even steel ones so I guess that by the time I compress it into my tank it should have already escape but I am not sure as I have no way to measure H2 content.
I have heard biogas could have up to 1% h2, but for some reason last year when I had my gas tested hydrogen wasn’t anywhere on the sheet. Next time I’ll have to ask them if there’s a way to check that too. I can’t find a colorimetric tube for it.
Do you install multiple brands of CNG kits or just one? Can you plug one here? What do you think the chances are they sponsor me a kit for a video?
I appreciate your comment.
@@BiogasUSA I haven't found a way to measure H2 either, that's why I stopped doing it, but I might start again because I found yesterday that my type 4 cng gas tank is compatible with RNG. We install systems by Lovato, BRC, Stag etc. There are a lot of LPG and CNG cars here in Greece but I can't tell you something about sponsorship as this is a joke around here. I know people who use RNG in type 1 steel tanks but I think it's a risk. There are ways to get rid of the CO2 to turn biogas to RNG which is more powerful. I might try such techniques but maybe in 6 months as I don't have the time now. Maybe you should give it a try and make a video about it. Oh and buy a type 4 carbon tank and get rid of this rusty steel one!
@@vasilispants8241 what are the ways to get rid of the co2? The best I could do so far was 60% ch4.
@@BiogasUSA If you google "How to eliminate CO2 from biogas" you will find many pages on the internet. All professional plants have scrubbers for CO2, hydrogen sulphide, siloxanes and moisture that turn raw biogas into RNG which is 97% methane and is practically the same as CNG. There are many methods and I am sure you will find one that suits you. I will try the water and iron wool one.
Good idea
Great video. Very informational. 👏👏👏
Just wondering about the energy consumption of the compressor. Would it be more economical if I just use the biogas as-is?
That’s a great question. Watch my most recent video, it’s on just this topic and there is some great discussion in the comments.
That brass fitting that you said was hard to find, how do you disconnect the tank? All of that looks hard line wired together. Do you lift the tank so that the tank is spinning, or are you twisting/untwisting the supply hose ?
The brass fitting turns out of the tank like a normal propane fitting
awesome bro do you have a video on how to fill the tyre tube from the biogas device?
I just attach the inner tube to the tube coming out of the digester and wait for it to fill up.
Nice works thanks for sharing, how long does this filled tank last?
Hey Joshua. I guess that would depend what I'm using it for. I had about 30 psi in a tank and I was able to boil a few gallons of water for an hour
Depends on the bed some are single and some are double and depending only what your use it
How many psi would or could this compressor compress up to a large compress could compress up to 150 psi.... what the upper limit this compress can compress...
Based on the compression rate data that you have supplied visually it would take about 7.1 hours and 116 inner tubes to fill the 200 bar gas tank that you have described.
Might be good to find a bigger gas transfer mechanism than the inner tubes, perhaps air mattresses?
I wonder if you could run your basic rv appliances with this just like you would with propane or would you need to adjust for flow rate due to it being a different type of gas. The furnace would be interesting to know if it can run
from some of the other videos i have watched, the gas burners on a stove in order to burn it are different so i would assume that a furnace would also be different
The pressure is the same, but you have to use different size orifices for propane and natural gas appliances. They have very different heat values
on all the other DIY Bio gas set ups they say the wholes on the burn end need to be bigger, but they may be soley due to the fact the pressure of flow from a tire is nothing like a tank. IDK just a thought from deduction@@hangfire5005
I looked this up earlier, with this method the gas is methane so natural gas appliances are compatible. look it up and research it, so you have a better understanding of the difference. I looked it up to see what appliances would work best with bio gas system because I will be building off grid and want alternatives to consider that will benefit the new homestead. it should power a tri fuel generator as well for electric to top off a solar battery bank on cloudy or bad weather days. lot of uses for this system.
Hey all. I have a video where I convert a propane turkey burner to biogas. I use it often and it works great. I want to try to convert some more things. I have a small natural gas powered furnace I need to tinker with some more.
Even though natural gas is methane, biogas doesn’t always work as a plug and play fuel source for NG appliances because biogas is so much more lean. That said, with some modifications I’m confident we can convert anything that runs on gasoline, propane or natural gas.
Nice job. I can't help but wonder if the boigas turns into a liquid under high pressure like propane. Not that it matters really, just a curious thought I've asked myself when considering building my own gasification system +storage
Check out phase diagrams it depends on the temperature and pressure of the gas. if you filter it or to approximate it you could just assume it's all methane
Any gas will turn to liquid when it reaches its vapor saturation pressure. Propane saturation pressure is around 300psi Methanes vapor saturation pressure is close to 900psi
These values vary by temperature also, as mentioned already.
So you need scuba tanks 😂
Great video.... How many lbs was contained in the tube?
Between 2 and 3 lbs. I can’t get any higher than that without starting to leak out the bulkhead fittings on my digester.
At 4min 16s into the video you can see the propane tank was last hydro tested July 1997. They are supposed to be tested every 10 years to make sure the metal hasn't fatigued and reduce risk of an explosion. You might want to let viewers know to use a propane tank that is within 10 years of that last stamped date else don't use the tank -- it needs to get re-hydro tested. Just better safe than sorry.. especially since this is more of a DIY thing and there are lots of signs of rust on that tank. Haven't watched it all yet, but also your compressor can easily explode that tank, so hope I see some kind of safety to make sure it doesn't overpressure the propane tank.
Great points. Thank you so much for the safety tips.I’ll ad these to the description.
My setup has changed quite a bit since this was filmed. If I ever film an update I’ll be sure to include these safety points also.
I have no prv or anything, the gauge you saw I added is the only measure to protect from over pressuring.
They aren't filling it as high pressure as a standard tank.
Do you use the vacuum pump to empty the propane cylinder of all air before starting the process for the first time? (Great video btw)
Merry Christmas
No I don’t. Since it had propane in it before, I’m not too worried about oxygen in the tank.
You also could build an adaptor from the 20lb to 1lb propane bottle adaptors.
Those are off the shelf for like 12 to 20 bucks.
I prefer the hose version, with a valve on it.
The hose lets me set the 1 lb can on a scale, and make sure I don't overfill it.
Where did you buy your filters from and can you quote the price, thanks?
This is where I got the filters from. Looks like I paid $26 USD for each.
a.co/d/gvGm5cQ
hi i want to do the same with hydrogen what do you think?? what kind of compressor is it that is safe to pump combustible gases??
I don't know what kind of compressor is safe. I'm just making it up as I go and trying to recognize and mitigate risk as I go along.
I don't know much about hydrogen either, but I am curious. Where are you getting it?
Ebay has propane adapters to 1/4npt. $7-8. I use propane tanks for compressed air
Thanks for the heads up. I’ll look there if I ever need another.
Run your gas through a wort chiller before the bottle so the gas is even more compressed into the bottle
I like that idea actually
How long did it take to fill the inter tube?
How long would a 20 lb tank last?
This will depend on so many things. My dogester is 30 gal. When the average temp outside is 90F and I have been feeding the digester daily I can fill an inner tube in a single day.
While a useful technique. A bit contra saving. how much energy was used by the compressor to fill the tank?
Biogas can be used to generate the energy to run the compressor also.
That would be the end goal. Follow to see me convert a generator to biogas.
Why does it did not explode when compressed? I understand that you provided cooling. But is that enough to keep the system safe when running? Methane is flamable gas, and when you compress a gaseous state temperature increases, plus the methane is flamable.
What is the ignition point of methane vs temperature and pressure atm condition? Hope you can enlighten as you got the experience on the project already.
It can’t explode because there is not enough oxygen. Methane lower explosive limit (LEL) is 5%, the upper explosive limit (UEL) is 15%.
Being my gas is almost 60%methane it is far too rich for combustion. This is why I am very careful to purge oxygen from my system before I start.
sketch lol@@BiogasUSA
Did you have the water pump running ? couldnt tell.
Yessir. The compressor will overheat almost instantly without it.
What exactly is the issue with air in the system? i assume there is small amounts of air in the filters so some air will be pushed into the tank.
Two things @mattycastaway. I am working hard to produce a more pure methane, so I don’t want to dilute it with all the nitrogen in the atmosphere. Also, if methane and oxygen mix in the right quantities there is a chance it could explode. For these reasons I do my best to purge all air out of the system.
I wonder if you could do likewise with a gasifier? Run it for an afternoon n fill all your tanks then run it in a multi fuel generator anytime you need it?
I am certain that you could, there is a gasification facility nearby me, they pipe their gas to nearby plants where it gets processed along with natural gas from oil wells.
Can you post a link to the compressor you were using?
amzn.to/45juHEX
What's the pressure rating on that particulate filter?
That’s a great question. It came with the compressor so… I have no idea. I should probably find a particulate filter with a known pressure rating.
Do you have a link to the compressor?
Yessir in the description
@BiogasUSA Same question do you have link looked in description and don't see it?
amzn.to/45juHEX
I'm confused how did you purge the air from the propane tank, I'm familiar with filling these tanks and normally you leave tge spitter/purge valve open while filling them until you see the lp spitting out, then you know youve pushed the air out and its full, how can you do that with bio gas
I can’t do that because I don’t have a purge valve, but this tank still had propane in it when I started so I just have always kept some positive pressure on it to prevent oxygen getting in. (I have had my gas tested to ensure this has been successful)
You’re using the word “air” in place of “gas”. Since nothing in my tank is going to be liquid, its a little different. The only thing I’m concerned about is O2 specifically.
If the tank was open and empty before I started I would purge it by filling it with biogas, and then open the valve and let it vent almost to atmosphere. I would repeat this process 3 or 4 times and then (because I can) I would have the contents of the tank tested for 02 to ensure levels are below acceptable thresholds.
This was a really good question. I love liquid gas and one day aspire to liquify biogas hahaha. I suspect a small cryo plant is the most efficient way to purify ch4 enough to maybe run a vehicle.
@@BiogasUSAmost of those types of tanks have them in the valve itself, typically a flat head you back off, looking at the video I think yours might be the opposite of the inlet/outlet port on the valve but be cautious if you open it there are times they won't seal once you open them if they haven't been used in a while. Thanks for the answer, great idea.
@@BiogasUSA also yes I guess gas is probably a better way of saying it, good point on the LP obviously is liquid lol, I wasn't sure how you would get any unwanted gas out of a tank if it had been depleted, but your answer makes sense
How expensive is the compressor and brand you are using ???
Not sure on the brand. Compressor was about $300. I think it's about the cheapest in its class. Here's the link
www.amazon.com/dp/B07VM6MPC3?ref_=cm_sw_r_apan_dp_PKFV0BX8PF2E8518ZCFQ
@@BiogasUSA Thanks Nate.
@@BiogasUSA am very much interested in compacting biogas for commercial purposes but don't know what compressor to use
You can get a fitting off a BBQ grill connection too
Do we need license for these experiment?
To my knowledge, no. I think you can even build a car that runs off biogas and operate it on the road without any special permitting.
Bruh, belly ache laugh at the "20's fire extinguisher" hahaha
probably no good for a lithium fire !
I am just building my 1st Digestor now,200lt (no storage yet may go a water tank type system)
but the biggest question as I start
was Faaarrrrque, I really don't have a way to store it, and now I know
thanks for this video. Can I fire you off a few questions as go along ?
I have too much waste, horse poo, produce waste, human waste
alot of free energy around me
don't worry about the editless you explain really well
Send the questions my way. I just make stuff up as I go, but I’ll be happy to try to figure it out with you.
GAS GRILL, TORCH REGULATOR ETC. OR ANY FLAMMABLE COMPRESSED GAS IS LH THREAD....OXYGEN RH.
that what i thought
Hi and how are you good day to you and to yours, poeple have asked and i am now too of what's the link of that compressor and you have said it's in the description, unfortunately I am looking at the description and There's nothing writen. Please tell us the brand and model of that air compressor, Please and thank you.
I think this is an affiliate link to Amazon, does it work?
Compressor
Could you add the details for the compressor?
I got it from here. Let me know if this link doesn't work.
a.co/d/9Cqokh8
@@BiogasUSA awesome thanks
Did I see that the flow was in the wrong direction??
Yessir the filter housings are designed for filtering water. Since I am filtering gas I thought it best to run them backwards so flow travels down the center tube and out. If I was using a liquid filter like a water bubbler especially that would prevent the water from running out the tube and traveling downstream.
Pls sir do u have a video where u ran a generator with biogas?
Not yet, I haven't attempted that but I will make a video soon when I do. Thank you for the suggestion.
Can you tell us where to get the compressor from? and is it 120v or 240?
thank you for you input....it's amazing!
This is the link
amzn.to/45juHEX
Pretty sad our system is so corrupt people have to pick up in their garages where people left off in the 1800s jist with better tools and accessibility to the knowledge. This should be at every household or in stores or warehouses being sold constantly. We go though so much trouble to harness materials from the earth when really we shit it out every day.😂 im not sure of the combustion difference and chemicals put out but this and many other methods need looked at again by top notch universities that aren't paid off if that exists. Hats off to you for doing so much for just one guy.
Thank you. I appreciate that.
There are commercial digestion plants out there. I know some of them truck cow manure in and digest it. They have proper gas plant equipment attached so they are exporting pipe gas, identical to the natural gas derived from petroleum.
That said, it’s fun for me to get close to the source of things. To understand how they work and where they come from. Thanks for the comment.
It may be a good ideal to add an oxygen absorber in another filter body,just to be a bit safer. I am not sure if this would work right though.? They do make a bearer for oxygen,it is expensive to say the least.
Thank you for this feedback. I’m going to make another filter video soon. I have since added molecular sieve beads and silica beads. I believe the silica will absorb oxygen.
Just wondering. Is there a reason you're sucking the gas through the filters backwards? I guess it doesn't matter with the filter media you're using. Just seeing that you're going against the flow arrows on the filters triggered my ocd, lol!
Hahaha I understand.
On the filter full of water if I ran it with the arrows it would suck the water up the pvc like a straw instead of bubbling the gas through it. I actually have this problem sometimes if the gas tries to run backwards.
Since filming this video I have relocated the filters to between the digester and the inner tube so the gas passes through a little more slowly. Sometimes if I have a big temperature swing (from hot to cold) the liquid mass inside the digester physically shrinks and sucks the water out of that filter and into the digester.
So pumping the bio gas through water removes the h2s gas how?
Yes, h2s is very water soluble. Bubbling biogas through water it will dissolve very quickly and stay with the water.
@BiogasUSA just normal tape water do not need to need minerals or chemicals to water and how often does water need to be replaced
Welders can use this method to make free CO2, starting from baking soda and vinegar.
and be usable in carbonate drinks ?
@@mlionea yes, in fact many welders buy CO2 from a pub.
By the way.. that looks like a Carbon Tetrachloride fire extinguisher.... in other words, "Cancer in a can!"
I'd avoid discharging that if it is indeed....
Good tip. Thanks for the heads up on that.
That's brilliant, could you run a vehicle in it?
it would have to be converted to cng first but yes
@@bussafushiguro6064 ok that might make small scale farm digesters more worthwhile, many people wouldn't bother installing one to save maybe €300 per year on cooking gas. People wouldn't even bother to save maybe €1000 on home heating. However, if they could add a saving of €3000-€4000 on car or tractor running costs, that might be a game changer
I know it’s possible to run a car with biogas, but I have not yet figured out how to make it pure enough to justify the cost of the cng kit.
The tire tubes are too small I use the blow up bed and went in 150 lb per share inch I think the tire tubes are too small
I do agree.
Although my oxygen levels in the lpg tank are very low, I can still get them lower and add to my own convince with larger gas storage vessels.
I considered a mattress, but instead of buying something new, I have since plumbed the two innertubes together as one. Thank you for the idea.
is the biogas liquified or its just compressed?
Just compressed. For methane to be liquid it needs to be very cold -250F, or very compressed (around 2000psi if I remember correctly)
I guess moisture is a big problem. If you rust your gas tank from the inside you'll blow yourself Up...
Yes, h2s is the first problem. Nothing will eat ferrous metal as fast as h2s and biogas has large quantities of it.
After than, moisture is the next problem.
I’m hearing now that the 1% hydrogen in biogas could make the walls of my tank brittle too.
I had to turn off the video after the second sluuuurp 🙄 next time try and wait until after the video to inhale your drink
I will take this into consideration. Thank you for the feedback.
Some people really do just look for any reason at all to be offended... *Facepalm*
...says the person with literally NO useful content to share on their own UA-cam channel!
Thank the man for the amazing technical content of his video or say what you liked about his setup also?
I have sensory processing disorder and am sensitive to this kind of thing too but there's no WAY I'd be so self absorbed to criticise this man when he's doing such an amazing service to us all with this information! 🙄
A normal compress can compress this to 120 psi...why don't you show it compress at pressure above 200psi
This is a two stage compressor, it will compress up to 6,000psi, however the propane tank I am using would rupture long before I got there.
Because of the much lower vapor saturation pressure of Propane, these tanks are generally only rated for a maximum operating pressure of 300 psi. As I stated in the video, I sprang for the expensive two stage compressor because I anticipate upgrading my tanks for a CNG kit on a vehicle in the future. Thank you for the question.
I like to see a update of this video with high perfume tanks.
I make 3000L of gas a day
How big is your digester?
@@BiogasUSA 5000 liters. With complete mix. I run a generator and gas boiler👍
@@Danishfarmer1 did you modify the gas boiler?
@@adw00000 No, we run with 42 psi. And we also use gas to make complete mix
Can I use any compressor other than that
You are a such a genius