delayed coking การใช้

• The adjacent photograph depicts a delayed coking unit with 4 drums.
• Delayed coking is one of the unit processes used in many oil refineries.
• Its facilities include two fluid catalytic cracking units, alkylation, delayed coking, naphtha reforming and hydrodesulfurization units.
• The yield of coke from the delayed coking process ranges from about 18 to 30 percent by weight of the feedstock residual oil, depending on the composition of the feedstock and the operating variables.
• Technological units operate at the refinery, including most units ensuring a high rate of crude oil refining depth ( delayed coking, hydrocracking, catalytic cracking, deasphalting, visbreaking, bitumen production ).
• On this day the refinery from TANECO, a Tatneft subsidiary, launched the operation of the delayed coking unit ( DCU ), which will allow to increase oil refining efficiency from 73 to 95 %.
• The capacity of the Refinery was augmented in 1995 to 2.35 MMTPA ( 51, 400 BPSD ) through expansion of the Refinery consisting of one Crude Distillation Unit ( CDU-II ) and one Delayed Coking Unit ( DCU-II ).
• Two extremes of the thermal cracking in terms of product range are represented by the high-temperature process called " steam cracking " or pyrolysis ( ca . 750 癈 to 900 癈 or higher ) which produces valuable ethylene and other feedstocks for the petrochemical industry, and the milder-temperature delayed coking ( ca . 500 癈 ) which can produce, under the right conditions, valuable needle coke, a highly crystalline petroleum coke used in the production of electrodes for the steel and aluminium industries.