Study Of Refining Expand Project Overall Plan For Daqing Petrochemical Company

With 47 years of high speed and high efficiency development, Daqing Oilfield has entered the late stage of high water cut development, and its sustainable development faces many new challenges, which CPC Central Committee and State Council have attached great importance to. Daqing has been listed as the country’s only oil resource type city sustainable development pilot and the petrochemical industry is determined as the leading continuous industry. Russian crude oil pipeline passing through Daqing and transporting imported Russian Crude Oil 30 million t /a, 15 million t/ a crude oil transporting pipeline has been completed, there is another 15 million t/ a crude oil transporting pipeline. Daqing Petrochemical company has a unique geographical advantage, Based on gasoline market forecast in 2020 of Heilongjiang, Jilin, Eastern Inner Mongolia, there is a gap of 2.03 million t /a, Based on diesel market forecast in 2020, there is a gap of 3.82 million t /a. Because 1.20 million t /a ethylene expansion project has been put into operation in Daqing Petrochemical company, demand for high quality ethylene raw material has increased significantly, limited surrounding petrochemical enterprises can not meet the requirements of 1.20 million t /a ethylene plant raw materials. Based on the above reasons, Daqing Petrochemical Company intends to expand the scale of refinery, increasing 4 million t /a of Russian crude oil processing capacity in order to meet the needs of product oil supply and regional economic sustainable development in Northeast China. Energy saving renovation project in different places for No.1 CDU/VDU unit in accordance with the design 4 million t /a of Russian crude oil, No.2 CDU/VDU unit in accordance with the design of Daqing crude oil, Based on Energy saving renovation project in different places for No.1 CDU/VDU unit, this paper studies the process of incremental Russian crude oil processing,which has important guiding significance to the construction of refinery project and the operation and optimization after the expansion.Refinery product program is mainly for fuel oil and chemical material, taking into account the high value-added paraffin, so two crude oil processing solutions were established, First solution: No.1 CDU/VDU unit mixing processes Daqing crude oil and incremental Russian crude oil, No.2 CDU/VDU unit processes Daqing crude oil, VRDS unit、RFCC unit and HCC unit will be newly built; second solution: No.1 CDU/VDU unit processes Daqing crude oil, transformation of No.2 CDU/VDU unit for processing Russian crude oil, RFCC unit and HCC unit will be newly built; it has been studied that two solutions of the total process, material balance, product solution, hydrogen balance, steam balance, fuel consumption and public utility.Finally, according to the investment situation, the return on investment is studied.Process simulation calculation and financial evaluation results show that on the basis of 10 million t /a of crude oil processing capacity, different processing scheme can both make the quality of gasoline and diesel oil to reach the V standard of the country and To provide 1.8 million t /a cracking raw material for 1.20 million t /a ethylene plant. Comprehensive product rate for mixing refining scheme is 92.59%, Comprehensive product rate for separately refining scheme is 92.97%, separately refining scheme is higher than mixing refining scheme by 0.38%, Light oil yield for mixing refining scheme is 83.13%,Light oil yield for separately refining scheme is 83.35%, separately refining scheme is higher than mixing refining scheme by 0.22%, Construction investment on mixing refining scheme is 6.895 billion ￥, Construction investment on separately refining scheme is 5.719 billion￥, mixing refining scheme is higher than separately refining scheme by 1.176 billion￥, internal rate of return for both schemes is higher than benchmark revenue by 12%, they are Economically feasible, internal rate of return for mixing refining scheme is 23.51%(pretax), internal rate of return for separately refining scheme is28.60%(pretax),separately refining scheme is higher than mixing refining scheme by 5.09%. After comprehensive analysis of technical feasibility, equipment operation, product yield, feed adaptability, resource utilization, investment and economic returns, and comprehensive comparison, it is recommended that integrated processing program use separately refining scheme about Daqing petrochemical refinery expansion project.