This article focuses on energy consumed by CO2 capture from different sources,power consumed by CO2 compression and transportation in different landforms and over different distances,and energy consumption and leakage of the different CO2-flooding development stages.Using energy consumed and leaked by the CCUS projects and fugitive emission as the constraint conditions and net reduction of emission in the whole process of the project as the highest target of optimization,the CCUS source-sink matching method is formulated,which is in line with the dynamic reservoir development law and under the constraints of accounting carbon emission reduction.This method can serve as the decision-making basis for industrial distribution of CCUS technology and execution of the projects under the"dual carbon"goal.Take CNPC's CCUS industrial planning in Ordos Basin for example,this article comprehensively elaborates some constraining factors,such as operation of the existing coal-fired power and coal chemical carbon sources and the service life if the facilities,prediction of energy consumed by CO2 capture,gas volume injected and cycled for CO2 flooding,and planning of the coal-based industrial distribution in the basin.Source-sink matching optimization and distribution of the CCUS project in Ordos Basin will be completed in five stages,namely 2025,2030,2040,2050 and 2060.The matched CCUS/CCS project group will cumulatively inject about 3.96×108 tons of CO2(including 0.48×108 tons of recycled gas)in the duration from 2025 to 2060.The net reduction of CO2 emission can reach 2.54×108 tons,about a 72.9 percent net reduction efficiency,after deduction of energy consumed and leaked by all kinds of the technical process.
关键词
CO2捕集、利用与封存/碳减排量核算/源汇匹配优化/管道部署规划
Key words
CO2 capture/utilization and storage/accounting carbon emission reduction/optimization of source-sink matching/planning distribution of pipelines
维普
万方数据