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Optimal processing conditions for a dolomite cracker for cracking of tar from gasification of biomass fuels. Optimale procesbetingelser for en dolomitkrakker til krakning af tjaere fra forgasning af biobraendsler

Abstract

Gasification of fuels derived from biomass is of interest in connection with combined cycle systems. During gasification tar compounds can be produced, and these can block further stages of the process. As gas turbines are very sensitive to tar compounds it is necessary to remove the tar completely from the gas. The most effective method appears to be catalytic cracking and it is suggested that dolomite is an effective and cheap catalysator. Based on a survey of relevant literature, the aim was to discover optimal conditions for the process of dolomite cracking. It is concluded that it is important to decarbonate the dolomite before use, that dolomite is not suitable for use in fluidized beds as it can become eroded and is subsequently very quickly blown out, and that it is important to hold the temperature at a level of ca. 800 deg. C. Conditions for fixed bed cracking both with and without steam are also desderibed. (AB) 15 refs.
Authors:
Publication Date:
Aug 15, 1989
Product Type:
Technical Report
Report Number:
NEI-DK-250
Reference Number:
DK-90-001019; EDB-90-032599; NTS-90-010433; ERA-15-016504
Subject:
20 FOSSIL-FUELED POWER PLANTS; CATALYTIC CRACKING; DOLOMITE; COMBINED-CYCLE POWER PLANTS; FLUIDIZED BED REFUSE GASIFICATION; GAS TURBINES; METHANE; TAR; ALKALINE EARTH METAL COMPOUNDS; ALKANES; CALCIUM CARBONATES; CALCIUM COMPOUNDS; CARBON COMPOUNDS; CARBONATE MINERALS; CARBONATES; CHEMICAL REACTIONS; CRACKING; DECOMPOSITION; HYDROCARBONS; MACHINERY; MAGNESIUM CARBONATES; MAGNESIUM COMPOUNDS; MANAGEMENT; MINERALS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; POWER PLANTS; PROCESSING; PYROLYSIS; THERMAL POWER PLANTS; THERMOCHEMICAL PROCESSES; TURBINES; TURBOMACHINERY; WASTE MANAGEMENT; WASTE PROCESSING; 200201* - Fossil-Fueled Power Plants- Waste Management- Thermal Effluents
OSTI ID:
7787824
Research Organizations:
Risoe National Lab., Roskilde (Denmark)
Country of Origin:
Denmark
Language:
Danish
Other Identifying Numbers:
Other: ON: DE90748431
Availability:
NTIS (US Sales Only), PC A03/MF A01
Submitting Site:
DK
Size:
Pages: 38 p
Announcement Date:
Mar 01, 1990

Citation Formats

Fjellerup, J. Optimal processing conditions for a dolomite cracker for cracking of tar from gasification of biomass fuels. Optimale procesbetingelser for en dolomitkrakker til krakning af tjaere fra forgasning af biobraendsler. Denmark: N. p., 1989. Web.
Fjellerup, J. Optimal processing conditions for a dolomite cracker for cracking of tar from gasification of biomass fuels. Optimale procesbetingelser for en dolomitkrakker til krakning af tjaere fra forgasning af biobraendsler. Denmark.
Fjellerup, J. 1989. "Optimal processing conditions for a dolomite cracker for cracking of tar from gasification of biomass fuels. Optimale procesbetingelser for en dolomitkrakker til krakning af tjaere fra forgasning af biobraendsler." Denmark.
@misc{etde_7787824,
title = {Optimal processing conditions for a dolomite cracker for cracking of tar from gasification of biomass fuels. Optimale procesbetingelser for en dolomitkrakker til krakning af tjaere fra forgasning af biobraendsler}
author = {Fjellerup, J.}
abstractNote = {Gasification of fuels derived from biomass is of interest in connection with combined cycle systems. During gasification tar compounds can be produced, and these can block further stages of the process. As gas turbines are very sensitive to tar compounds it is necessary to remove the tar completely from the gas. The most effective method appears to be catalytic cracking and it is suggested that dolomite is an effective and cheap catalysator. Based on a survey of relevant literature, the aim was to discover optimal conditions for the process of dolomite cracking. It is concluded that it is important to decarbonate the dolomite before use, that dolomite is not suitable for use in fluidized beds as it can become eroded and is subsequently very quickly blown out, and that it is important to hold the temperature at a level of ca. 800 deg. C. Conditions for fixed bed cracking both with and without steam are also desderibed. (AB) 15 refs.}
place = {Denmark}
year = {1989}
month = {Aug}
}