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Power-User

Join Date: Apr 2008
Location: Metro Manila, Philippines
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What makes an "Ideal" Conversion Design from Diesel-fired to Alternative Energy?

04/03/2008 3:14 PM

A Philippine Hot-Dip Galvanizing Plant with its Diesel-fired Cooking Kettle (1.5M depth x 1M width x 7M length - with a maintaining temperature of about 400 degree Centigrade) uses up about 15,000 liters of Diesel monthly operating 24x7 daily. The Plant is located about 10 kms away from Landfills; about 5 kms away from Livestock Farms; about 100 meters from an Industrial Sawmill. Given the location & the land area of the Plantsite, we do not find Sun & Wind advisable. Instead, we plan to convert from the present use of "dirty" diesel to our envisioned "renewable" Alternative Energy Mix (AEM) of probably 20% BioMass(Sawdust) + 80% BioGas(Methane).

Is it cheap to clean (if necessary) Methane Gas drawn from Landfills &/or Livestock Farms? Is it cheap to compress and to store Methane Gas in a Transportable Tanker - if technically feasible? Is it cheap to convert "raw" Sawdust into a BioMass with a higher BTU - if technically feasible? Is our envisoned AEM technically probable and economically viable? Could Heat Recovery System be adapted to a Hot-Dip Open-Bath Cooking Kettle?

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Power-User

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#1

Re: What makes an "Ideal" Conversion Design from Diesel-fired to Alternative Energy?

04/03/2008 4:03 PM

If your methane is coming off of a landfill, then it will need to be cleaned up if it is to be compressed and put into a tanker. Landfill gas has a lot of water in it which will condense out when you compress the gas. You will need some sort of seperator and trap system to remove the liquid before storing it in a tank or tanker truck.

Additionally there are sulfur gasses (sulfur dioxide and hydrogen sulfide) in the landfill gas which, when dissolved in water, create an acidic solution corrosive to most metals typically used in this service (read carbon steel). Over time the pipe will rust through and leak. This is why most people who use landfill gas choose not to compress it, but rather draw it off and use it at the pressure supplied by the blower taking it out of the field.

Compression can be done, but the cost of the additional equipment necessary to clean up the gas usually stops most people from doing this.

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Power-User

Join Date: Apr 2008
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#2
In reply to #1

Re: What makes an "Ideal" Conversion Design from Diesel-fired to Alternative Energy?

04/04/2008 1:00 AM

Given the Technical limitations & cost of "cleaned, compressed, transportable" Methane Gas, would raw degradable Solid Waste processed into "Green Charcoal" BioMass with higher BTU be a better option? Check this out - http://www.mapecon.com/readersdigest.htm

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APIX Pilot Plant Design Project - Member - New Member

Join Date: Nov 2007
Location: Bangalore, India; 12.981550 N 77.531867 E
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#3

Re: What makes an "Ideal" Conversion Design from Diesel-fired to Alternative Ene

04/04/2008 2:41 AM

Hello manilaman

Please see this thread:

http://cr4.globalspec.com/comment/207309/Re-What-makes-an-Ideal-Design-for-a-rural-based-Philippine-Industrial-Plant

The same solution is proposed for this too

Best wishes

pvhramani

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Power-User

Join Date: Apr 2008
Location: Metro Manila, Philippines
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#4
In reply to #3

Re: What makes an "Ideal" Conversion Design from Diesel-fired to Alternative Ene

04/04/2008 4:48 AM

PYHRAMANI: This Prospect Client is located far from a Vegetation Environment. It is located in the outskirts of highly-urbanized Metropolitan Manila whose garbage are dumped in the Landfills about 10 kms away. Hence, I do not find your APIX Concept adaptable in this case.

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Power-User

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#5

Re: What makes an "Ideal" Conversion Design from Diesel-fired to Alternative Energy?

04/07/2008 1:28 PM

01. May I solicit more "bright" ideas from my APIX Network - and any other?

02. In addition to my "Case Brief" described in the opening of this Discussion Thread, I would add the following:

  • There are 2 "big" Feedmills located 5 kms away from PlantSite;
  • Some "Experts" in other Fora share the view that BioGas (Methane) could be more problematic than BioMass.

03. My Prospect Client has been awaiting for my "Ideal" Solution - and I have none as yet.

04. Thanks for giving attention.

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