Technical and Economic Evaluation of CO2 Capture and Reinjection Process in the CO2 EOR and Storage Project of Xinjiang Oilfield

CO2 capture and reinjection process (CCRP) can reduce the used CO2 amount and improve the CO2 storage efficiency in CO2 EOR projects. To select the best CCRP is an important aspect. Based on the involved equipment units of the CCRP, a novel techno-economic model of CCRP for produced gas in CO2 EOR a...

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Bibliographic Details
Published in:	Energies (Basel) Vol. 14; no. 16; p. 5076
Main Authors:	Zhang, Liang, Geng, Songhe, Yang, Linchao, Hao, Yongmao, Yang, Hongbin, Dong, Zhengmiao, Shi, Xian
Format:	Journal Article
Language:	English
Published:	Basel MDPI AG 01-08-2021
Subjects:	Carbon dioxide Carbon sequestration CO2 capture efficiency CO2 EOR and storage Coal-fired power plants Design economic evaluation Economic models Emission analysis Emissions Energy consumption Enhanced oil recovery Flue gas Fractionation Gas production Industrial design Industrial plant emissions Low temperature Membrane separation Oil and gas fields Oil and gas production Oil field equipment Oil fields Permeability Pilot projects Pressure swing adsorption process optimization Reinjection Sensitivity analysis Storage China
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Summary:	CO2 capture and reinjection process (CCRP) can reduce the used CO2 amount and improve the CO2 storage efficiency in CO2 EOR projects. To select the best CCRP is an important aspect. Based on the involved equipment units of the CCRP, a novel techno-economic model of CCRP for produced gas in CO2 EOR and storage project was established. Five kinds of CO2 capture processes are covered, including the chemical absorption using amine solution (MDEA), pressure swing adsorption (PSA), low-temperature fractionation (LTF), membrane separation (MS), and direct reinjection mixed with purchased CO2 (DRM). The evaluation indicators of CCRP such as the cost, energy consumption, and CO2 capture efficiency and purity can be calculated. Taking the pilot project of CO2 EOR and storage in XinJiang oilfield China as an example, a sensitivity evaluation of CCRP was conducted based on the assumed gas production scale and the predicted yearly gas production. Finally, the DRM process was selected as the main CCRP associated with the PSA process as an assistant option. The established model of CCRP can be a useful tool to optimize the CO2 recycling process and assess the CO2 emission reduction performance of the CCUS project.
ISSN:	1996-1073 1996-1073
DOI:	10.3390/en14165076