Testing of novel sorbents for H2S removal from coal gas
作者:
S. K. Gangwal,
J. M. Stogner,
S. M. Harkins,
S. J. Bossart,
期刊:
Environmental Progress
(WILEY Available online 1989)
卷期:
Volume 8,
issue 1
页码: 26-34
ISSN:0278-4491
年代: 1989
DOI:10.1002/ep.3300080110
出版商: American Institute of Chemical Engineers
数据来源: WILEY
摘要:
AbstractApplication of zinc ferrite, a regenerable mixed metal oxide, for the removal of H2S from hot coal derived gas streams is limited to a maximum temperature of about 1,250°F (677°C) and to a minimum H2S concentration of about 5 ppmv in the cleaned gas. Four novel sorbents that have shown potential for overcoming the limitations of zinc ferrite [1, 4] were selected for development and bench‐scale testing. Several variations of these mixed metal oxides were prepared, using different amounts of binders. They were tested in the presence of simulated coal gas using a thermogravimetric reactor (TGR) for selection of preparations possessing an adequate combination of reactivity, regenerability, capacity, and strength. Limited bench‐scale tests were conducted in the presence of simulated fluidized‐bed coal gasifier product gases at pressures from 1 to 2 MPa, temperatures from 525°C to 625°C and space velocities from 1,000 to 3000 Nm
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