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Anonymous Poster

biogas (Methane) to LNG

07/28/2008 3:33 AM

Can anyone tell me if there are any systems out there for converting landfill gas to LNG.

I am looking for a small system to process around 1-5,000 ltrs per day, for our own use.

Or maybe some of you smart guys out there have some ideas that could work

Regards

Mal

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Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#1

Re: biogas (Methane) to LNG

07/28/2008 6:43 AM

Cryogenic equipment to produce the liquefaction will be an enormous value compared to that of the gas obtained. Why not just pipe the gas to where it is needed and burn it, as a gas?

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Guru

Join Date: Dec 2007
Posts: 588
Good Answers: 13
#2

Re: biogas (Methane) to LNG

07/29/2008 1:46 AM

you'd consume about 50% of the landfill gas to get to LNG. One BIG cost is the clean up of the gas before going to a liquification plant.

I've designed small (25,000 gallon/day) and I've seen 1000 gallon per day units. In any case, you have to get the CO2 and water out of the gas, very tricky and expensive.

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Anonymous Poster
#3
In reply to #2

Re: biogas (Methane) to LNG

08/08/2008 10:28 AM

Hello!

Sometimes, we try to fix the wrong problem. Water is not the problem, the problem is that no one really cares.

Just sterilize the biogas using the components of water, HHO, O3, H2O2 > CH3, react this with H2O > H2 + solid carbon. The carbon is worth more than you will spend on the process.

The process has no odor and is safe and very cost effective, if anyone is interested, write: cg@technics.cc

Regards, Ciege

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Guru

Join Date: Dec 2007
Posts: 588
Good Answers: 13
#4
In reply to #3

Re: biogas (Methane) to LNG

08/11/2008 9:13 AM

your equations make no sence and sound quite bogus. Give us a link. Posting an adress is spamming.

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Anonymous Poster
#5

Re: biogas (Methane) to LNG

09/22/2008 6:08 PM

Mal,

You read my last post WRONG; biogas and methane are NOT the same, methane and liquified NG are the same thing.

What you want is to react methane with water, producing Hydrogen + solid carbon (NO CO2 nor CO) good, clean, safe (sterilized) with no ODOR.

The solid carbon would off set the cost of reacting the methane with water. If you require more info, just write

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