Development of a Pre-combustion CO2 Capture Process Using High-Temperature PBI Hollow-Fiber Membranes
- SRI International, Menlo Park, CA (United States)
The overall goal of this research project was to develop a high-temperature, membrane-based CO2 capture technology for coal gasification facilities and make progress toward meeting overall fossil energy performance goals of CO2 capture with 95% CO2 purity at a cost of electricity (COE) 30% less than baseline capture approaches. The primary objectives of the project were to evaluate, at a bench-scale size, a technically and economically viable CO2 capture system based on a high-temperature polybenzimidazole (PBI) polymer hollow-fiber membrane (HFM) separation system, and to optimize the process for integration of that system into an integrated gasification combined cycle (IGCC) plant. The specific objectives of the proposed project are to: (1) fabricate high-performance PBI-HFMs for H2/CO2 separation; (2) collect laboratory data for separating hydrogen from simulated synthesis gas using PBI-based membrane modules; (3) transfer the membrane fabrication technology to an industrial firm that specializes in the manufacture of HFMs; (4) fabricate membrane modules to process a syngas stream (50 kWth) equivalent to that of shifted gas from an oxygen-blown gasifier; (5) obtain design and steadystate performance data for membrane modules using syngas from an operating coal gasifier; (6) estimate the cost of CO2 capture from pre-combustion gas streams integrated into a 550-MW (net) power plant; and (7) conduct a process environmental health & safety (EH&S) assessment.
- Research Organization:
- SRI International, Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Fossil Energy (FE)
- Contributing Organization:
- ENERFEX, Inc.; Generon; IGS; PBI Performance Products, Inc.; and Kevin O’Brien (Consultant from Energy Commercialization, LLC)
- DOE Contract Number:
- FE0012965
- OSTI ID:
- 1569766
- Report Number(s):
- SRI Project P22553 11-18-2019 update; 6508594042
- Country of Publication:
- United States
- Language:
- English
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