Research on improvement in Zn-based sorbent for hot gas desulfurization

• 来源期刊: 煤炭学报（英文版）
• 年，卷（期）: 2005,（1）
• 页码范围: 63-66
• 页数: 4页
• 语种: 英文

摘要

Two Zn-based sorbents, L-991 and L-992 used for hot 9as desulfurization (HGD) were introduced. Zn/Ti ratio of the two sorbent was 1:1 and 2:3 resptively and a certain proportion of Cu and Mn metal oxide were added into L-992, which provided better performance than L-991 in aspects of suitable work temperature, sulfur capacity and agglomeration on the surface of sorbent particles. The evaluation tests were done on both sorbents include multi cycles tests. ARD and SEM analysis were done on fresh and post tests sorbent. During continuous sulfidation/regeneration, the H2S concentration can be reduced from about 10 g/m3 to less than 20 mg/m3, the H2S removal efficiency ＞99%.