Research progress of CO₂ capture, utilization and storage (CCUS) technologies in petroleum and petrochemical industry

Global climate warming has always been the focus of attention of international community. To deal with this global difficulty of climate change, the CO₂ Capture, Utilization and Storage (CCUS) technologies emerged at the right moment. As a high carbonization industry, petroleum and petrochemical industry will be faced with bigger challenges. In this paper, the latest research progress of CCUS technologies in global petroleum and petrochemical industry and a series of related technology research & development and demonstration projects in China were investigated, and the technological achievements in this industry was illustrated further. Then, a set of technical plan targeting at the CCUS in petroleum and petrochemical industry was put forward. The flue gas generated from gas fired boilers is synthesized with natural gas by virtue of tri-reforming action, and the synthesis gas is recycled or used for the DME synthesis (the separated CO₂ is used for oil displacement). And these two utilization modes were economically compared. And accordingly, a kind of environmental risk evaluation method was developed, i.e., risk matrix method dominantly used for qualitative evaluation, and a 2D matrix table and a classification standard of risk importance level were formulated. In addition, some suggestions on the development of CCUS technology in petroleum and petrochemical industry were proposed.