Abstract
The catalytic conversion of CO through the water–gas shift reaction (WGSR) is of great importance in many of today’s chemical industries, such as ammonia and methanol synthesis. One of the emerging new applications of the WGSR is pertinent to membrane-assisted Integrated Gasification Combined Cycle (IGCC) for clean energy or clean hydrogen production with zero CO2 emissions. The use of membrane reactors offers a significant advantage by lowering process intensity and reducing the cost of CO2 capture. The integration of IGCC with membrane technology could be realized either as an open architecture (OA) where hydrogen separation ceramic modules are located before and after the WGSR or as an integral WGSR membrane reactor (closed architecture (CA)) where reaction and separation happen in a single step. The first part discusses mathematical modelling of this more complex, but perhaps more efficient, integral WGSR membrane reactor. A techno-economic analysis comparing the conventional technology with membrane-assisted WGSR developed around OA, considered the first step towards commercial realization, is discussed in the second part of this chapter.
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