Conversion Kits for Gas Generators

One smaller systems changing from high BTU fuels to low BTU fuels is just a matter of changing the A/F mix ratio to match the different fuel. Its basically just re jetting or adjusting the mixer unit if the fuel is of a similar base chemical make up. Most coal gas is primarily still natural gas based but with more impurities like water vapor and other low to non combustible gases.

If the coal gas is too low of grade it may not work with your engines present compression ratios or may simply just not be capable of generating the necessary power that the original natural gas produced as well.

Contact the carburetor/ mixer unit manufacturer to see what they recommend.

If the coal gas is too low of grade it may not work with your engines present compression ratios or may simply just not be capable of generating the necessary power that the original natural gas produced as well.

You are indeed right here

Its basically just re jetting or adjusting the mixer unit if the fuel is of a similar base chemical make up.

You are right here too - but the basically is what the main problem is ! it will involve massive change of casing/heads etc., which can be only done by the same gas generator manufacturer because he will have the kits .

i am just seeking some help so as not to discard /sell off existing generators and replace with lean-fuel generators.

thanks being the first to reply.

I was not sure of the specifics on the bigger systems and assumed that they also have reasonably adaptable mixing systems as well. As far as the details about what you have and what you need the actual manufactures will have far more reliable information to what the limits of the mixing system and actual engine working capacities will be.

The vapor fuel systems I am more familiar with are on the smaller scale automotive and industrial stuff and us rather basic mixer units that are adaptable to work on a range of engine sizes and with a range of fuel types. With them its just propane, bottled natural gas or utility fed natural gas which all are within similar ranges of working conditions engine wise.

But as with any large variations in fuel types there is also a much stronger possibility that engine modifications will be needed to make up for the differences.

If you cant find the specifics you may have to resort to the old fashioned method of just hook one up and see what you can adjust it to do. Either it will work or it wont.

Being coal gas you may have a fair possibility that it will be directly compatible or that with possible filtering or processing to remove the impurity's it may work that way.

You will need a more detailed analysis of whats in the coal gas that limits its calorific values. If its something thats not detrimental you may be good to go. Or if its something thats easily clean out that may be the next possible action.

It will all come down to cost justification.

Thanks buddy. If know any American Coal Gasifier Company please let me know.

Ducon, try here: http://www.energy.siemens.com/hq/en/power-generation/fuel-gasifier/. The Siemens' technology is tried and true, tested in Germany for over 30 years and the Germans have contracted for additional gasifiers.

Yes my friend I know about this but the best part is Siemens presently are the only European Gasifier makers in the West surprisingly. They make for minimum for 500 MW and greater Electrical power generation. The first was supplied to China last mid/end 2008 and the next 1000 MW/1100 MW to Illinous USA.

No other Country except China (and some India) makes for smaller MWs engines/generators of 1 MW/ 2 MW/ 3 MW.

One Chinese Gasifier 3.2 M can give 7800 m3/hr coal gas at 1450 kcal that can operate upto 4.5MW (say 1 MW x 3 nos + 1.5 MW x 1 no or 2 MW x 2 nos or any cominiation you make with your gas engines). Here we have such sets of natural Gas at 8550 Kcal generators . So these generators/engines cannot run on coal gas not unless you totally replace them with Lean-fuel Gas generators/engines. Also all Boilers/driers can operate with coal gas but with lean-fuel burners.

All Gas Genertors' manufacturers yet need to confirm the conversion kits but till date nobody has come forward except recommending their version of lean-fuel Gas generators/engines.

try these

http://alternativefuels.about.com/od/propan1/a/propaneconvert.htm

http://www.tinleytech.co.uk/lpgprices.html

http://www.propane-generators.com/

http://www.indianindustry.com/lpgcylinders/6721.html