The author learned from Daqing Refining and Chemical Company that a production adjustment has been completed in the acrylonitrile operation area of the company, the unit consumption of propylene raw materials is 30 kg / ton lower than that before the adjustment, and the monthly cost is reduced by about 1.3 million yuan.

Acrylonitrile produced by Daqing Refining and Chemical Industry is mainly used to synthesize polyacrylamide and is widely used to improve oil recovery. With the increasing demand for polyacrylamide products, Daqing Refining and Chemical Co., Ltd. has done a good job of "addition and subtraction" in optimizing operation and controlling consumption, so as to improve the operation level of the plant and realize the increase of production and efficiency and the reduction of cost and consumption.

The catalyst for ammoxidation of propylene is the key to ensure the reaction effect. In order to prevent the catalyst from losing its activity and reduce the production cost, the acrylonitrile operation zone burns up the excess carbon deposit in the pore channel of the catalyst by increasing the temperature of the ammonia burning process and prolonging the ammonia burning time, thus restoring the area of the catalyst that can effectively contact the raw material and promoting the efficient progress of the reaction. When using raw materials, the tail oxygen was controlled above 1.02%, and the activity of the catalyst was maintained by constantly optimizing the ratio, paying attention to abnormal data and timely adjustment.