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Improvements and simplifications of staged gasification unit for CHP production. Report for the project: Simplification, system and operation optimization of staged gasification unit for CHP production (the Castor unit in Graested); Forbedringer og forenklinger af trinopdelt forgasningsanlaeg til kraftvarmeproduktion. En Delrapport til projektet: Forenkling, system- og driftsoptimering af trinopdelt forgasningsanlaeg til kraftvarmeproduktion (Castor anlaegget i Graested)

Abstract

In 2003/04 BioSynergi Proces ApS built a complete approx. 450 kWth Open Core staged gasification unit as a development / demonstration plant. The plant uses wet wood chips as fuel for generating electricity and heat. The facility, known as the Castor plant, is connected to the heat supply network in Graested District Heating. The daily operation is handled by BioSynergi Process. The cogeneration system, that the Castor plant represents, is the basis for this completed project. In this subproject the Castor plant has been used to develop and test improvements to the cogeneration system at the following points: 1) Optimization of process design of the gas generator within the existing framework; 2) Establishment of a heating system to start up the gas generator; 3) Automation of switching the gas engine to operate on produced gas; 4) Simplification of the gas generator's fuel feeding system; 5) Improving the control options for the supply of gasification air. The introduced changes have led to the operation of the total gasification-cogeneration system becoming more convenient and easier to operate for non specialists. Operational testing of the plant during the project has covered approx. 2,300 hours of operation of cogeneration. It has identified the periodic  More>>
Publication Date:
Aug 15, 2010
Product Type:
Technical Report
Report Number:
NEI-DK-5431
Resource Relation:
Other Information: PSO-2007
Subject:
09 BIOMASS FUELS; 20 FOSSIL-FUELED POWER PLANTS; BIOMASS; WOOD; DUAL-PURPOSE POWER PLANTS; COGENERATION; GASIFICATION; OPTIMIZATION; OPERATION
OSTI ID:
1000220
Research Organizations:
BioSynergi Proces ApS, Hoersholm (Denmark)
Country of Origin:
Denmark
Language:
Danish
Other Identifying Numbers:
Other: Contract FORSKEL-7191; TRN: DK1001185
Availability:
Also available at http://www.risoe.dtu.dk/rispubl/NEI/NEI-DK-5431.pdf; OSTI as DE01000220
Submitting Site:
DK
Size:
29 p. pages
Announcement Date:
Dec 21, 2010

Citation Formats

Houmann Jakobsen, H. Improvements and simplifications of staged gasification unit for CHP production. Report for the project: Simplification, system and operation optimization of staged gasification unit for CHP production (the Castor unit in Graested); Forbedringer og forenklinger af trinopdelt forgasningsanlaeg til kraftvarmeproduktion. En Delrapport til projektet: Forenkling, system- og driftsoptimering af trinopdelt forgasningsanlaeg til kraftvarmeproduktion (Castor anlaegget i Graested). Denmark: N. p., 2010. Web.
Houmann Jakobsen, H. Improvements and simplifications of staged gasification unit for CHP production. Report for the project: Simplification, system and operation optimization of staged gasification unit for CHP production (the Castor unit in Graested); Forbedringer og forenklinger af trinopdelt forgasningsanlaeg til kraftvarmeproduktion. En Delrapport til projektet: Forenkling, system- og driftsoptimering af trinopdelt forgasningsanlaeg til kraftvarmeproduktion (Castor anlaegget i Graested). Denmark.
Houmann Jakobsen, H. 2010. "Improvements and simplifications of staged gasification unit for CHP production. Report for the project: Simplification, system and operation optimization of staged gasification unit for CHP production (the Castor unit in Graested); Forbedringer og forenklinger af trinopdelt forgasningsanlaeg til kraftvarmeproduktion. En Delrapport til projektet: Forenkling, system- og driftsoptimering af trinopdelt forgasningsanlaeg til kraftvarmeproduktion (Castor anlaegget i Graested)." Denmark.
@misc{etde_1000220,
title = {Improvements and simplifications of staged gasification unit for CHP production. Report for the project: Simplification, system and operation optimization of staged gasification unit for CHP production (the Castor unit in Graested); Forbedringer og forenklinger af trinopdelt forgasningsanlaeg til kraftvarmeproduktion. En Delrapport til projektet: Forenkling, system- og driftsoptimering af trinopdelt forgasningsanlaeg til kraftvarmeproduktion (Castor anlaegget i Graested)}
author = {Houmann Jakobsen, H}
abstractNote = {In 2003/04 BioSynergi Proces ApS built a complete approx. 450 kWth Open Core staged gasification unit as a development / demonstration plant. The plant uses wet wood chips as fuel for generating electricity and heat. The facility, known as the Castor plant, is connected to the heat supply network in Graested District Heating. The daily operation is handled by BioSynergi Process. The cogeneration system, that the Castor plant represents, is the basis for this completed project. In this subproject the Castor plant has been used to develop and test improvements to the cogeneration system at the following points: 1) Optimization of process design of the gas generator within the existing framework; 2) Establishment of a heating system to start up the gas generator; 3) Automation of switching the gas engine to operate on produced gas; 4) Simplification of the gas generator's fuel feeding system; 5) Improving the control options for the supply of gasification air. The introduced changes have led to the operation of the total gasification-cogeneration system becoming more convenient and easier to operate for non specialists. Operational testing of the plant during the project has covered approx. 2,300 hours of operation of cogeneration. It has identified the periodic maintenance tasks on the demonstration plant. Through further development of plant components that may happen in the subsequent development versions, it will be possible to eliminate some of the regular maintenance tasks and reduce the frequency of others. The optimization of the process design was completed with an experiment with the addition of extra air in the middle of the lower coke zone. Observations during the experiment gave the impression that both the amount and size of charcoal pieces are reduced. Because of the gas generator's section-wise construction, it will be relatively easy to construct and install a new subsection to it and thereby install the system permanently. It is estimated that with a proper design of any such additional process step, an almost complete conversion of the charcoal quantity to ashes will be within reach. (ln)}
place = {Denmark}
year = {2010}
month = {Aug}
}