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High‐performance oxygen transport membrane reactors integrated with IGCC for carbon capture
Author(s) -
Cai Lili,
Wu XiaoYu,
Zhu Xuefeng,
Ghoniem Ahmed F.,
Yang Weishen
Publication year - 2020
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.16247
Subject(s) - integrated gasification combined cycle , wood gas generator , syngas , air separation , coal , coal gasification , chemical engineering , carbon fibers , waste management , hydrogen production , chemistry , hydrogen , process engineering , oxygen , environmental science , materials science , engineering , organic chemistry , composite number , composite material
Precombustion carbon capture is an effective strategy to reduce large‐scale CO 2 emissions, which is mainly used in the area of integrated gasification combined cycle (IGCC) power plants. Oxygen transport membranes (OTMs) were suggested as the air separation unit to produce high purity oxygen for the gasifier. However, the improvement in efficiency was limited. Here, a new IGCC process is reported based on a robust OTM reactor, where the OTM reactor is used behind the coal gasifier. This IGCC‐OTM process fulfills syngas oxidation, H 2 production, and carbon capture in one unit, thus a significant decrease of the energy penalty is expectable. The membrane reactor does not use noble metal components, and exhibits high hydrogen production rates, high hydrogen separation factor (10 3 –10 4 ), and stable performance in a gas mixture mimicking real syngas compositions from a coal gasifier with H 2 S concentrations up to 1,000 ppm.