Comprehensive utilization system for tail gas of pressure swing adsorption device and dry gas of catalytic cracking device

• Main Authors: WANG XIBIN, LI ZHENYU, HU SHANTAO, CHEN CHEN, YANG YAJUN, QIAN YUANJUN, GUAN YOUXIN, XU FENG, SHAO QING
• Format: Patent
• Language: Chinese; English
• Published: 04.06.2024
• Subjects: AIR; BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; CONSUMING WASTE PRODUCTS BY COMBUSTION; CREMATION FURNACES; FEEDING FUEL TO COMBUSTION APPARATUS; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PIPE-LINE SYSTEMS; PIPE-LINES; REGULATING OR CONTROLLING COMBUSTION; SEPARATION; STORING OF DISTRIBUTING GASES OR LIQUIDS; TRANSPORTING; WEAPONS

The invention relates to the technical field of comprehensive utilization of oil refining and chemical tail gas, in particular to a comprehensive utilization system for tail gas of a pressure swing adsorption device and dry gas of a catalytic cracking device. The comprehensive utilization system comprises a fuel gas storage and plant pipeline system, a fuel gas centralized operation system and a high-low stratified combustion system. Chemical tail gas generated by the PSA device and the DCC device is firstly stored in the PSA tail gas storage tank and the DCC dry gas storage tank in a centralized mode, then conveyed to the fuel gas centralized operation system through the PSA tail gas plant area pipeline and the DCC dry gas plant area pipeline respectively, and filtered and decompressed through the fuel gas centralized operation system. And the gas enters the high-low stratified combustion system through a PSA tail gas boiler area pipeline and a DCC dry gas boiler area pipeline, and combustion treatment is ca