Development of Novel Carbon Sorbents for CO₂ Capture

Technical Report · Sat Mar 01 04:00:00 EST 2014

DOI:https://doi.org/10.2172/1132602· OSTI ID:1132602

Krishnan, Gopala N. ^[1]; Hornbostel, Marc ^[2]; Bao, Jianer ^[2]; Perez, Jordi ^[2]; Nagar, Anoop ^[2]; Sanjurjo, Angel ^[2]

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1. SRI International, Menlo Park, CA (United States); Sri International
2. SRI International, Menlo Park, CA (United States)

An innovative, low-cost, and low-energy-consuming carbon dioxide (CO₂) capture technology was developed, based on CO₂adsorption on a high-capacity and durable carbon sorbent. This report describes the (1) performance of the concept on a bench-scale system; (2) results of parametric tests to determine the optimum operating conditions; (3) results of the testing with a flue gas from coal-fired boilers; and (4) evaluation of the technical and economic viability of the technology. The process uses a falling bed of carbon sorbent microbeads to separate the flue gas into two streams: a CO₂ -lean flue gas stream from which > 90% of the CP₂ is removed and a pure stream of CO₂ that is ready for compression and sequestration. The carbo sorbent microbeads have several unique properties such as high CO₂ capacity, low heat of adsorption and desorption (25 to 28 kJ/mole), mechanically robust, and rapid adsorption and desorption rates.

• Research Organization: SRI International, Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• Contributing Organization: ATMI, Inc.; The University of Toledo
• DOE Contract Number: NT0005578
• OSTI ID: 1132602
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
54 ENVIRONMENTAL SCIENCES