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Experimental investigation of an industrial scale black liquor gasifier: 1. Influence of reactor operation parameters on product gas composition
Energy Technology Centre, Piteå.ORCID iD: 0000-0002-9395-9928
Energy Technology Centre, Piteå.
Energy Technology Centre, Piteå.
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2010 (English)In: Fuel, ISSN 0016-2361, E-ISSN 1873-7153, Vol. 89, no 12, p. 4025-4034Article in journal (Refereed) Published
Abstract [en]

A novel technology to mitigate the climate changes and improve energy security is Pressurized Entrained flow High Temperature Black Liquor Gasification (PEHT-BLG) in combination with an efficient fuel synthesis using the resulting syngas. In order to optimise the technology for use in a pulp and paper mill based biorefinery, it is of great importance to understand how the operational parameters of the gasifier affect the product gas composition. The present paper is based on experiments where gas samples were withdrawn from the hot part of a 3 MW entrained flow pressurized black liquor gasifier of semi industrial scale using a high temperature gas sampling system. Specifically, the influence of process conditions on product gas composition (CO2, CO, H2, CH4, H2S, and COS) were examined by systematically varying the operational parameters: system pressure, oxygen to black liquor equivalence ratio, black liquor flow rate to pressure ratio and black liquor pre-heat temperature. Due to the harsh environment inside the gasification reactor, gas sampling is a challenging task. However, for the purpose of the current study, a specially designed high temperature gas sampling system was successfully developed and used. The results, obtained from two separate experimental campaigns, show that all of the investigated operational parameters have a significant influence on the product gas composition and present valuable information about to the process characteristics.

Place, publisher, year, edition, pages
2010. Vol. 89, no 12, p. 4025-4034
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URN: urn:nbn:se:ltu:diva-12114DOI: 10.1016/j.fuel.2010.05.003Local ID: b2f10fb0-5907-11df-b6eb-000ea68e967bOAI: oai:DiVA.org:ltu-12114DiVA, id: diva2:985064
Note
Upprättat; 2010; 20100506 (percar)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-05-02Bibliographically approved

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Carlsson, PerWiinikka, HenrikPettersson, EsbjörnGebart, Rikard

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