Biomass Densification

Biomass Densification, Previously: Mobile Pyrolyzer for a Biorefinery Feedstock, Jim Robinson, Conversion Processes, California, March, 2006, updated August, 2007.

Thank you for giving me publicity with your entry about my Biorefinery Feedstock process. I have change the title of my data sheet to Biomass Densification which I am attaching. My interests have changed to accepting pyrolysis which I had previously rejected because the pyrolysis oil had a pH pf 3,0 which caused a requirement for stainless tankers for transport. I have found 9i can send you a copy of the article)that catalytic pyrolysis with a HZSM-5 zeolite catalyst reduces the acid content by 80%


Jim Robinson

Fuel Life Cycle Costs

Fuel Life Cycle Costs
Max Kennedy August 7, 2007

Here's some data, attached, I have been able to find. Note that the values are life cycle values as opposed to tailpipe values except where specifically stated. On the 2nd tab of the Excel file I have included the references. If anyone wants the info in another format email me off list and I'll reorganize it for you.

Max Kennedy

Ultimate test for Producer Gas

Ultimate test for Producer Gas
Doug Williams, Fluidyne Gasification, New Zealand, August 5, 2007

Gasification Colleagues,

Since I began working with producer gas in 1976, the question of it's quality, and how to measure it in a way that clarifies it's purity, has never in my mind, been answered by gas analysis. I have seen many gas analysis presented to prove a gasifiers function, and therefore justify claims of how this gas can be used, but this can hide a multitude of problems within the gas making phenomena.



Biomass Gasification using Solar Thermal Energy

Biomass Gasification Using Solar Thermal Energy (pdf)
M. Munzinger and K. Lovegrove, Solar Thermal Group, Department of Engineering, Australian National University, Canberra ACT 0200, AUSTRALIA, ANZES 2006
Courtesy of Peter Singfield July 2007

Hydrogen from Biomass as an energy carrier has generated increasing interest in recent years. There are several different technologies to convert solid or liquid Biomass into a gas mix consisting of mainly hydrogen and carbon dioxide. Up to 30% of the energy stored in the product gas would originate from the sun by using solar thermal applications to source the conversion while the equivalent of 30% of the product gas would have to be burned using conventional approaches. This paper explains the principles of the main technical pathways for biomass gasification and shows their advantages and disadvantages especially in connection with the use of solar heat as energy source for the conversion reaction. Biomass gasification in supercritical water appears to be a simple and efficient and thus most convenient approach for solar thermal applications.

Pyrogas from Biomass

Pyrogas from Biomass
F. Michael Lewis, July 14, 2007

Paper presented by F. Michael Lewis and Clarence M. Ablow to "A conference on Capturing the Sun Through Bioconversion," March 10-12, 1976, Washington, D.C. Shoreham Americana Hotel, presented by the Stanford Research Institute. 15 pp.


Development of producer gas engines

Development of producer gas engines
G Sridhar and Sridhar, HV and Dasappa, S and Paul, PJ and Rajan, NKS and Mukunda, HS (2005) Development of producer gas engines. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 219(3):423-438. 2005
ePrints at IISC:

Posted by Oscar ( ) June 27 2007


Charcoal Gasifier No 2

Doug Williams, Fluidyne, July 24, 2007

Hi Gasification Colleagues,

While charcoal gasifiers are as simple as desperation determines, the choices as to how they are designed is very much a factor of applied knowledge, using the materials that might be available. In the main, we will only be using components made of steel, and using basic welding equipment for assembly.


Gasification Guide: Guideline for Safe and Eco-Friendly Biomass Gasification

HSE Gasification Guide: Guideline for Safe and Eco-Friendly Biomass Gasification
Harrie Knoef, HSE, June 4, 2007

Poor awareness and lack of understanding of the Health, Safety and Environment (HSE) hazards in the project development, planning, design, construction stage and during operation and maintenance of gasification plants is recognized as a major non-technical obstacle. The project "Guideline for Safe and Eco-friendly Biomass Gasification" aims to effectively tackle this barrier.

India: Towards Cleaner Technologies A process story on biomass gasifiers for heat applications in small and micro enterprises

Towards Cleaner Technologies A process story on biomass gasifiers for heat applications in small and micro enterprises
Editors, Sanjay Mande, V V N Kishore, TERI Ptess for The Energy and Resources Institute and Swiss Agency for Development and Cooperation, 2007 ISBN 81-7993-107-2
Competence Network for Small and Micro Learning Enterprises (Cosmile)

Commercializing New Technology: EERC Microgasification Local Energy/Local Opportunities, CERTs

Commercializing New Technology: EERC Microgasification Local Energy/Local Opportunities, CERTs
Darren D. Schmidt, P.E., Clean Energy Resource Teams Conference, January 17, 2007

Business Mission
Become the leader in providing energy solutions for
commercial and industrial clients that have simultaneous
waste disposal and cogeneration requirements.

Biomass Energy Centre: Information sheet: Combined heat and Power

Information sheet: Combined heat and Power
Biomass Energy Centre, DEFRA, UK, Version 2.0 April 20, 2007


Combined heat and power (CHP), or co-generation, is the simultaneous generation of usable heat and electricity.
Conventional power plants usually dissipate the heat generation using cooling towers. With CHP it is used for domestic or industrial space heating or for process heat. Tri-generation also includes cooling using an absorption chiller.


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