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Title: Cycle Design and Optimization of Pressure Swing Adsorption Cycles for Pre-Combustion CO2 Capture

Journal Article · · Applied Energy
 [1];  [1];  [2];  [1];  [1];  [3];  [3]
  1. Univ. of Alberta, Edmonton, AB (Canada). Dept. of Chemical and Materials Engineering
  2. Federal Inst. of Technology, Zurich (Switzerland)
  3. TDA Research Inc., Wheat Ridge, CO (United States)
+ Show Author Affiliations

Novel pressure-swing adsorption (PSA) cycles were developed based on patented TDA AMS- 19 (activated carbon) adsorbent for pre-combustion CO2 capture in integrated gasi cation combined cycle (IGCC) power plants. A variety of cycles comprising of counter-current blowdown, pressure equalization, steam purge and light product pressurization steps were designed and simulated using an in-house one dimensional detailed model. Full process opti- mization studies were performed for all cycles to evaluate their feasibility for pre-combustion CO2 capture. The CO2 purity and recovery Pareto fronts obtained using the multi-objective optimization were used to assess their ability to simultaneously achieve high CO2 purity (>95%) and recovery (>90%). The cycles that achieved the purity-recovery (95%-90%) requirements were subjected to energy-productivity optimizations under the constraints of CO2 purity and recovery. Three cycle designs were ranked in terms of lowest energy con- sumption at 95% CO2 purities and 90% CO2 recoveries. It was found that a 10-step cycle with three pressure equalization steps achieved a minimum energy consumption of 95.7 kWhe/tonne of CO2 captured at a productivity of 3.3 mol CO2 captured/m3 adsorbent/s.

Research Organization:
TDA Research Inc., Wheat Ridge, CO (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE); USDOE
Grant/Contract Number:
FE0013105
OSTI ID:
1545097
Alternate ID(s):
OSTI ID: 1547786
Journal Information:
Applied Energy, Vol. 254; ISSN 0306-2619
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (1)

A robust metal–organic framework for post-combustion carbon dioxide capture journal January 2020

Figures / Tables (22)

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36 MATERIALS SCIENCE
42 ENGINEERING
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
pre-combustion carbon capture
pressure swing adsorption
multi-objective optimization
modeling
genetic algorithm
dynamic simulation