Purification of producer gas in biomass gasification using carbon materials

dissertation

English

This work is dealing with the utilization of biomass feed stocks and wooden residue for gasification process to produce the syngas which is suitable for the implementation of power plants for electricity generation and gas production problems for further chemical and energy purposes discussing the practical purification methods, given that the complexity of both theme and project which carried out through detailed analyses. Since the obtained gas has many types of unwanted contaminants, it was necessary to derive an effective cleaning method for gas purification from chemical contaminants especially tars components. The discussion of the definitions and methods for the determination of gas unwanted components and their removal technologies on the basis of the knowledge of data collecting and analysis, carried out through an experimental massive approach. The theoretical analysis of the gasification process for an effective tar reduction in the produced gas has been studied as well. Since the quality requirements for internal combustion engines, gas turbines and fuel cells using the primary measurement methods cannot be achieved for gas production, this work aimed removing different particulates and tar. The main emphasis is placed on the methods of high cleaning taking in account the chemical and thermal specifications of the gas which is based on the utilization of three different kinds of carbon materials successfully and efficiently; char coal, black coke and active carbon, for tar removal which has a major impact on the process parameters. The analysis was responding with the mechanism and the techniques of minimizing the resultant allowable concentration using suitable materials and verifying the operation conditions without affecting the gas thermal efficiency. The highlights of the theoretical and experimental work has been drawn up by a high concept cleaning allowing the production of a pure gas having a quality that meets the modern technical requirements for electricity generation. Functionality the most efficient cleaning methods were based in the current project for tar reduction on the quantity of tar removed, the materials used for tar cracking and the conditions of the experimental work as well. For a successful industrial application, some proposals have been settled for the improvement of gas cleaning.

Biomass gasification, gas purification, carbon materials, tar removal.

AL-DURY, S.

10. 9. 2010

VUT Brno

Brno

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