Til hovedinnhold
Norsk English

Experimental investigation of an industrial scale black liquor gasifier. 1. The effect of reactor operation parameters on product gas composition

Sammendrag

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 The present paper is based on experiments where gas samples were withdrawn from the hot part of a 3 MW entrained flow pressurized black liquor gasifier of semi industrial scale using a high temperature gas sampling system.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. © 2010 Elsevier Ltd. All rights reserved.

Kategori

Vitenskapelig artikkel

Språk

Engelsk

Forfatter(e)

  • Per Carlsson
  • Henrik Wiinikka
  • Magnus Marklund
  • Carola Grönberg
  • Esbjörn Pettersson
  • Marcus Lidman
  • Rikard Gebart

Institusjon(er)

  • SINTEF Energi AS / Termisk energi
  • Sverige
  • Ukjent

År

2010

Publisert i

Fuel

ISSN

0016-2361

Årgang

89

Hefte nr.

12

Side(r)

4025 - 4034

Vis denne publikasjonen hos Cristin