[Gasification] coal coocking

[Tom Miles]

Is this going to lead us back to Changing World Technologies Thermal conversion Process of "thermal depolymerization"? http://www.changingworldtech.com/what/index.asp Chicken feathers!

See http://www1.eere.energy.gov/biomass/pyrolysis.html

ECN (Netherlands) has evaluated biomass hydrogasification for SNG production. "They evaluated the SNG production by means of hydrogasification. In the hydrogasification process, hydrogen is fed together with biomass to an autothermal gasifier at 30 bars. The hydrogen is to be supplied by industrial rest streams. The
energy input of the incoming hydrogen is about the same as the thermal input of the biomass.
For a 50 MW plant a production price of 22 €ct/ Nm3 was calculated."

H. Mozaffarian, R. Zwart; Feasibility of SNG production by biomass hydrogasification,
Proceedings 12 th European Conference and technology exhibition on biomass for energy,
industry and climate protection,p520, 2002 Amsterdam. 

For coal see ZECA Corporation (former Zero Emission Coal Alliance) http://www.zeca.org/overview/gasification.html 


-----Original Message-----
From: AJH [mailto:list at sylva.icuklive.co.uk] 
Sent: Wednesday, September 27, 2006 2:34 PM
To: Tom Miles
Cc: gasification at listserv.repp.org
Subject: Re: [Gasification] coal coocking

On Wed, 27 Sep 2006 10:02:20 -0700, Tom Miles wrote:

>The process looks similar to hydrothermal gasification which was 
>extensively investigated in the 1990s.

Ian Bywater used a hydrolysis method that seemed to have the same basic method for his convertech New Zealand firm, now not trading though Ian is still active. He claimed his process was  autothermal or autolysis which I took to mean it required no additional chemicals or heat input. His process yielded oils though.

AJH