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Thomas B. Reed

Open Core Reburn and Stratified Downdraft Gasifiers

Submitted by Tom Miles on Sat, 2007-11-17 23:08
Last updated January 20, 2009
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Open Core Re-burn Stratified Downdraft Gasifiers: References
Tom Miles, November 18, 2007
Temperatures and Gas CompositionTemperatures and Gas Composition

Multi-mode GasifierMulti-mode Gasifier

"Method an Apparatus for Generating and Utilizing Combustible Gas", US Patent 6,647,903, Nov. 18, 2003, Charles, W. Aguadas Ellis http://freepatentsonline.com/6647903.pdf

Superficial velocity - the Key to Downdraft Gasification T. B. Reed, R. Walt, S. Ellis, A. Das, S. Deutch http://www.woodgas.com/Superficial%20Velocity.pdf

S. Chopra and A. Jain. “A Review of Fixed Bed Gasification Systems for Biomass”.Agricultural Engineering, Agricultural Engineering International: the CIGR Ejournal. Invited Overview No. 5. Vol. IX. April, 2007.
http://www.cigrjournal.org/index.php/Ejounral/article/view/960

Design Parameters for a Rice Husk Throatless Gasifier," Anil Kr Jain, May 2006, Agricultural engineering internationals: the CIGR Ejournal, Manuscript EE 05 012 vol Viii.
http://cigr-ejournal.tamu.edu/submissions/volume8/EE%2005%20012%20Jain%20final%2010May2006.pdf

The 2D Eulerian Approach of Entrained Flow and Temperature in a Biomass Stratified Downdraft Gasifier A Rogel and J. Agullon, American Journal of Applied Sciences 3 (10) 2068-2075, 2006
http://www.scipub.org/fulltext/ajas/ajas3102068-2075.pdf

Method and Apparatus for Generating Combustible Synthesis Gas US patent 20070012229, Jan.18,2007. Rehmat, Amirali G (Darien, IL, US)KAO, Richard L (Northbrook, IL, US), CHUNG, Jin Soo (Hacienda Heights, CA, US) http://www.freepatentsonline.com/20070012229.pdf

Operating Engines on Woodgas" Bill Olsen. 2007.
http://www.slideshare.net/ncenergy/operating-engines-on-woodgas-by-bill-olsen

Modeling wood gasification in a countercurrent fixed-bed reactor
Colomba Di Blasi * Dipartimento di Ingegneria Chimica, Università degli Studi di Napoli Federico II, 80125 Napoli, Italy
http://www3.interscience.wiley.com/journal/109594729/abstract

Thermo-Chemical Conversion of Biomass – a Retrospective and a Prospective
H. S. Mukunda, S. Dasappa, P J Paul, N K S Rajan, G Sridhar, H V Sridhar and U Shrinivasa, Indian Institute of Science, Bangalore

Thermal Gasification Technology: Open Top Re-burn Down Draft IISc.India
NetPro DESI Power India
http://www.desipower.com/field_experience/netpro_experience.htm

A Process and gasifier for Gasification of Solid Biofuel European Patent EP1442101, Henrik
Houmann Jakobsen, May 15, 2003 http://www.freepatentsonline.com/EP1442101.pdf

The C-H-O Fuel Map

Submitted by Tom Miles on Sun, 2007-10-28 19:40
Last updated November 03, 2008
in

The C-H-O Fuel Map
Thomas Reed, Biomass Energy Foundation, October 4, 2007
C-H-O Fuel Map
C-H-O Fuel Map

The attached diagram which shows the relationship of all fuels to their C-H-O content. I first developed this at SERI/NREL ~1980 and have been refining it ever since. It seems to draw a lot of chemistry together and make it understandable for the chemistry no-wanabes.

The Boudouard Equation

Submitted by Tom Miles on Wed, 2006-11-22 22:19
Last updated November 04, 2008
in

The Boudouard Equation: Chart and Spreadsheet (Excel)
Tom Reed, Biomass Energy Foundation, Golden, CO, November 22, 2006

Boudouard Equilibrium
Boudouard Equilibrium

Select image and "Original" to enlarge.

Fuel Composition-Conversion and Equivalence Ratio Diagrams

Submitted by Tom Miles on Mon, 2006-11-13 07:00
Last updated November 04, 2008
in

The Fuel Composition-Conversion Diagram (pdf)
The Equivalence Ratio: The Key to Understanding Pyrolysis, Combustion and Gasification of fuels (pdf)
Tom Reed, Biomass Energy Foundation July 4, 2006

Equivalence ratio
Equivalence ratio

Biomass Energy Foundation: History of Woodgas

Submitted by Tom Miles on Mon, 2006-11-13 06:51
Last updated November 13, 2006
in

Biomass Energy Foundation: History of Woodgas
Tom Reed, Biomass Energy Foundation

See the Biomass Energy Foundation website at www.woodgas.com for history, publications and information regarding biomass gasification from small sacle to industrial syngas.

BEF director Dr. Tom Reed moderates the Gasification discussion list and is a valuable treasue of knowledge in the thermochemical converison of biomass to energy.

Açai Brazil: Biomass Gasification Partnership for Rural Electrification in Brazil

Submitted by Tom Miles on Sat, 2007-03-10 02:09
Last updated November 03, 2008
in

Açai Brazil:Biomass Gasification Partnership for Rural Electrification in Brazil
Tom Reed, Biomass Energy Foundation, February 27, 2007

The Biomass Energy Foundation has partnered with Brazil’s Federal University of Amazonas (UFAM) to bring biomass-generated electricity to the Amazon region.

The “Biomass Gasification Partnership for Rural Electrification in Brazil” will use açaí pits, currently a waste product from processing fruit pulp, to generate 80 kW of electricity to serve four communities in the municipality of Manacapuru, approximately 90 km southwest of the state capital Manaus. The bioenergy plant will be co-located with a new açaí processing facility that will allow villagers to generate income and improve their standard of living. Currently, the villagers collect the fruit but have no means to process it into pulp, so they must sell it to a middleman at a low commodity prices. A new school has already been constructed as part of the project.

BEF’s system will consist of two 40 kW gensets fueled by two air-blown downdraft gasifiers complete with gas cleaning and cooling systems and semi-automated system controls. System installation is scheduled for the summer of 2006.

The project has principle funding from Brazil’s Federal Ministry of Mines and Energy as a pilot facility under Brazil’s “Lights for All” universal electrification program. The International Utility Energy Partnership has also awarded BEF a small grant to monitor the greenhouse gas benefits associated with using biomass energy rather than distributed diesel generation, the current modus operandi, to serve isolated communities in Brazil.

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