Abstract
CO2CRC Ltd., the leading CCS R&D organization in Australia, has designed and implemented a carbon capture demonstration skid in Australian Otway National Research Facility. One important part of the skid is a Pressure Swing Adsorption (PSA) rig with two parallel columns and an additional buffer tank. The two months of operation results proved that the PSA rig can successfully remove high concentration of CO2 from in-situ high pressure natural gases. To improve our understanding of the process and gain further insight, we have simulated the entire two-bed PSA process using MINSA (Melbourne University Integrated Simulation of Adsorption) and found that blowdown pressures would significantly impact the separation performance. Based on the simulation results of the Otway plant, an efficient cyclic PSA process with six-bed PSA system is design, which including four pressure equalizations. With six-bed simulation, CO2 concentration in the downstream can be achieved to 88% and CH4 purity in the top stream 95% when a high content CO2 of 50% feed gas is treated at the operating pressure of 50 bar.
Original language | English |
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Title of host publication | 14th International Conference on Greenhouse Gas Control Technologies, GHGT 2018 |
Publication status | Published - 2018 |
Externally published | Yes |
Event | International Conference on Greenhouse Gas Control Technologies 2018 - Melbourne, Australia Duration: 21 Oct 2018 → 25 Oct 2018 Conference number: 14th https://ghgt.info (Website) |
Conference
Conference | International Conference on Greenhouse Gas Control Technologies 2018 |
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Abbreviated title | GHGT 2018 |
Country/Territory | Australia |
City | Melbourne |
Period | 21/10/18 → 25/10/18 |
Internet address |
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Keywords
- High pressure natural gas separation
- Otway CO2 capture skid
- PSA
- Simulation