Discussions On Expansion Of Delayed Coker Capacity In Refinery No.2 Of PetroChina Fushun Petrochemical Company

With the pace of the heavy crude oil and poor crude oil speeding up worldwide and the light quality oil product is demanded largely, so the delayed coker technology is taken seriously day by day and becomes a new research focus and the important heavy oil processing method in recent years owing to less equipment investment ,simple craft and well-developed technology. So far, delayed coker craft has made great development on the aspects of the process, the choice of equipment's material quality or equipment's scale, becomes more economical and reasonable, and then has decreased the investment.It is estimated that by the end of 2008,the total sum of the crude oil processing in refinery No.2 of Fushun Petrochemical Company petroleum will have increased to 11,500,000 tons per year. According to the requirement of total process , the coker unit needs to dispose 2,400,000 tons crude pomace oil per year, therefore the existing coker unit with the ability to handle 1,200,000 tons per year needs to be expanded and improved to 2,400,000 tons per year to meet the needs for the heavy oil in the entire factory, simultaneously provides high quality ethylene decomposition raw material for 1,000,000 ton ethylene technological transformation project and provides the sufficient production of paraffin wax and the ideal raw material of the basic oil of the lubricating oil for the technological transformation project of the production of the oil and the paraffin wax.This article talks about the bottleneck of delayed coker technology with 2,400,000 tons per year in Fushun Petrochemical Company , selection of the superior improvement plan which suits the actual situation and the decision of the reasonable operating parameter and the technical process in order to create the maximum economic efficiency by the least investments, at the same time has carried on the economic analysis to the automatic control level of the unit engineering design, the environmental protection and the security problem as well as the feasibility of the equipment construction.