Pinch Based Approach Graphical Targeting for Multi Period of Carbon Capture Storage and Utilization

Abstract

Carbon capture and storage (CCS) plays an important role in mitigating carbon dioxide emissions from industrial sources. The main issue in implementing CCS is its economy due to the high investment and operating costs. To overcome the economic issue, the carbon capture and utilization (CCU) provides an alternative option to CCS by converting some of the CO2 captured to commercial products. The CCU has the advantage of generating revenue that offsets the cost of CCS. In this work, the integration of the CCS and CCU into a single system of carbon capture storage and utilization (CCSU) will be investigated. A novel graphical technique based on pinch analysis is proposed to address CCSU planning and targeting problems. The new definition of economic criteria are introduced to assess the CCSU system performance. Several utilization options such as methanol, dimethyl carbonate (DMC), and enhanced oil recovery (EOR) are applied to evaluate the feasibility of the CCSU system. The hypothetical case study is used to elucidate the proposed method. Among the case studies, the CO2 utilization into DMC gives the best economic criteria, while the EOR provides the best CO2 reduction criteria. The paper shows that the proposed technique gives the new insight for CO2 emissions reduction planning and the new definition of economic criteria is a promising indicator for the CCSU targeting.