H2S REMOVAL FROM COAL-GAS AT ELEVATED-TEMPERATURE AND PRESSURE IN FLUIDIZED-BED WITH ZINC TITANATE SORBENTS .1. CYCLIC TESTS

被引：34

作者：

MOJTAHEDI, W ^{[1
]}

ABBASIAN, J ^{[1
]}

机构：

[1] INST GAS TECHNOL,DES PLAINES,IL 60018

来源：

ENERGY & FUELS | 1995年 / 9卷 / 03期

关键词：

D O I：

10.1021/ef00051a006

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Simplified integrated gasification combined cycle (IGCC) processes are considered to be among the most efficient and environmentally acceptable technologies for power generation from coal. In such processes the coal is gasified at pressure and the coal gas is cleaned and combusted in a gas turbine; Coal gas cleanup at elevated pressure and temperature in the IGCC proCesses offers advantages in higher power generation efficiency and simpler plant configuration. Regenerable mixed metal oxide sorbents are the prime candidates for removal of hydrogen sulfide (the main pollutant) from the hot coal gas in the simplified IGCC processes. In this paper, the results of cyclic sulfidation/regeneration tests conducted with two zinc titanate sorbents are presented and discussed. These tests were carried out at high pressure and temperature (20 bar, 550-650 degrees C) in a bench-scale fluidized-bed reactor. The results indicate that the reactivity of both sorbents towards H2S gradually decline in cyclic sulfidation/regeneration tests.

引用

页码：429 / 434

页数：6

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