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Sinochem News recently, Guangzhou Petrochemical Cracking Unit innovatively adopted the feeding mode of propane-butane co-cracking.
By reducing the feeding amount of naphtha in the raw material, the diversity of cracking raw materials was increased and the cost of ethylene raw materials was reduced
.
Recently, the price of raw material naphtha has risen.
Guangzhou Petrochemical cracking unit has further optimized the raw material structure and used propane as the cracking raw material
.
On the basis of the current feeding mode of 6 furnaces of "1 set of naphtha + 3 sets of light naphtha + 2 sets of hydrogenated tail oil", the use of naphtha is reduced by using propane
In order to ensure the implementation of the plan, the company set up a research team to study the feeding plan on the basis of considering the problems in the previous use of propane butane zonal cracking
.
After many discussions, Guangzhou Petrochemical Co.
For the first time, the cracker realized the feeding mode of "0 units of naphtha + 3.
5 units of light naphtha + 2 units of hydrogenated tail oil + 0.
5 units of propane-butane co-cracking", and the feeding amount of propane-butane reached 5 tons/hour
.
In the process of using propane butane and withdrawing from naphtha, the cracking unit has successively solved the problems of unstable operation of cracking furnace, reduction of ultra-high pressure steam production, high shaft displacement of cracked gas compressor, and excessive propane circulating in the propylene rectifying tower.
