According to the data in February, the ethylene and propylene yields of the No. 2 olefin unit of Sinopec Shanghai Petrochemical Co., Ltd. ranked second among similar units of the group company, reaching 49.81%, an increase of 0.08% from 2018.

In order to ensure the increase in yield from the source and maximize the output of profitable products, the device has worked hard on the raw material structure, measured and calculated through SPYRO (ethylene cracking simulation) software, and communicated and coordinated with the production planning department to maximize the cracking raw material structure. For example, in February, the device added 0.77% of the gas phase component of the cracking raw material composition, and reduced the naphtha feed volume by 1.39%.

The smooth operation of the device is the basis for obtaining good technical and economic indicators. For this reason, the device rationally optimizes production arrangements, organizes the scorching operation of the cracking furnace in an orderly manner, and ensures that the cracking furnace is in the best operating condition. At the same time, strengthen assessment and careful operation to reduce operational fluctuations caused by human factors. The device's stability rate in February reached 99.29%, and it also ranked second among similar devices of the group company.

 In addition, the device is also working hard on measures such as strengthening the use of APC (advanced controller), reducing flare gas emissions, and optimizing the operating mode of the cracking furnace to ensure a steady increase in ethylene yield.