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Development of a Pre-Combustion CO2 Capture Process Using High-Temperature PBI Hollow-Fiber Membranes

Technical Report ·
DOI:https://doi.org/10.2172/1986300· OSTI ID:1986300
 [1];  [2];  [2];  [2]
  1. SRI International, Menlo Park, CA (United States); SRI International
  2. SRI International, Menlo Park, CA (United States)
The overall objective of this project was to evaluate the advantages of transformational polybenzimidazole (PBI) polymer hollow-fiber membrane (HFM)-based, carbon dioxide (CO2) capture and purification technology at bench-scale using an actual coal-derived syngas stream from a coal gasification facility. The project was carried out over two budget periods. The technical objectives in Budget Period 1 (BP1) included preparing HFs and modules and upgrading the available skid for field testing. The technical objectives for BP2 were to field-test the skid unit with actual coal-derived syngas from an oxygen-blown gasifier to obtain performance data, update the Techno-Economic Analysis (TEA) that would assist with future process scale-up, and provide information on the design of a small pilot-scale test unit. The goal was to advance the PBI-HFM CO2 capture and gas separation system for pre-combustion applications beyond second-generation economic performance predictions 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 research program was designed with progressive technical tasks leading to both dynamic and steady-state testing of the PBI-HFM skid with actual coal-derived syngas. The work plan was to: (1) fabricate sufficient Generation-2 (GEN-2) fibers for module fabrication; (2) upgrade the fiber skid to accommodate large fiber modules for bench-scale field testing; (3) conduct dynamic and steady-state testing with coal-derived syngas from an oxygen-blown gasifier and obtain system performance data; (4) perform a TEA and environmental, health, and safety (EH&S) assessment; (5) update the State-Point Data Table, Technology Gap Analysis (TGA), and Technology Maturation Plan (TMP); (6) uninstall and return the test skid to the Recipient’s facilities; and (7) submit a Final Report that describes the results and analysis of the project research effort.
Research Organization:
SRI International, Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Contributing Organization:
PBI Performance Products, Inc., and Enerfex, Inc (LLC)
DOE Contract Number:
FE0031633
OSTI ID:
1986300
Report Number(s):
DOE-SRIINTERNATIONAL--31633
Country of Publication:
United States
Language:
English