After more than two months of continuous optimization and adjustment, the self-reliant technological transformation of Guangzhou Petrochemical Refinery No.3 coking unit coke oven system exhaust gas was sealed and sent directly to the refinery low-pressure gas flare system to achieve zero emissions , The goal of fully closed recovery, effectively solve the problem of odor pollution of cold coke jugs.At present, the system is in stable operation.
Coke plant in Guangzhou Petrochemical No. 2 cold coke water tank system consists of a cold coke water buffer tank, a cold coke water tank, two coke coke settling tank, a waste oil recovery tank and tail gas absorption system for Recovery, separation of coke oil after cooling, the gas pressure at the top of the tank by adding nitrogen to balance.
Due to the cold coke tank system in the coke tower cold coke process, especially the coke tower to the overflow phase, 150 degrees Celsius cold coke water into the cold coke buffer tank, will produce exhaust gas. Exhaust despite the original deodorant However, there are still some benzene, non-methane hydrocarbons and other toxic and hazardous substances can not be completely eliminated, there are environmental risks.
After years of research and discussion, Refining 3 decided to solve the problem of exhaust gas pollution by using the self-developed integrated technology of top-airtight closed-top recovery of atmospheric pressure tank, which has been successfully put into use by No. 4 Sewage Stripper of this unit.
The closed recovery technology using 1.0 MPa steam as a continuous power source, the steam control valve and nitrogen valve implementation of sub-section control until the top coke gas coke up, the canopy gas directly to the refinery low-pressure gas system Airtight recovery.
On December 1, 2017, after nearly half a year of construction, the coke oven system exhaust gas treatment project officially entered the operation phase, and through continuous optimization and adjustment by technicians, the optimal operation method was gradually developed and the stable operation of the system was achieved.
