High density and high solids flux CFB risers for steam gasification of solids fuels

被引：42

作者：

Bi, Xiaotao T. ^{[1
]}

Liu, Xinhua ^{[1
]}

机构：

[1] Univ British Columbia, Clean Energy Res Ctr, Vancouver, BC V6T 1Z3, Canada

来源：

FUEL PROCESSING TECHNOLOGY | 2010年 / 91卷 / 08期

关键词：

Gasification; High density and high flux riser; Circulating fluidized bed; Coal; Biomass; Syngas production; CIRCULATING FLUIDIZED-BED; REACTOR SECTION; FLOW; VELOCITY; CHOKING; COKERS; MODEL; FCC;

D O I：

10.1016/j.fuproc.2009.12.011

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The application of high density and high solids flux CFB risers for steam gasification of solids fuels like coal and biomass has been examined in this paper. A simple mass and energy balance analysis revealed that a steam gasification riser needed to be operated at high solids fluxes in order to supply sufficient heat from the standpipe by circulating hot solids to the endothermic gasification reactor. The important design considerations to achieve high solids circulation rate in the CFB unit were discussed in this paper with emphasis given to the riser height, solids inventory, standpipe to riser diameter ratio, and solids feeding control device. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：915 / 920

页数：6

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