论文部分内容阅读
以在加拿大建设千万吨级的燃料型炼油厂为例,按完全加工稀释沥青设计,减压渣油加工选用加氢裂化、延迟焦化和溶剂脱沥青三种典型成熟的重油加工技术,蜡油加工采用加氢裂化工艺,以最大化生产柴油为目的,采用PIMS线性规划软件,对各种炼油技术方案和投资经济性进行分析对比。结果表明,在西得克萨斯轻质原油(WTI)价格为95美元/bbl的价格体系下,采用渣油加氢裂化工艺投资最高,氢气消耗量最大,但该工艺可最大程度地将沥青轻质化,全厂轻油收率高,并可充分依托当地稳定可靠的天然气、电力和氢气供应,是项目执行的首选方案。而延迟焦化、溶剂脱沥青两种脱碳工艺虽然投资和运行成本较低,但轻油收率低,且在加拿大天然气供应充足、价格适中的情况下,大量的高硫石油焦和沥青只能作为废物填埋处理,经济性要差一些。
Taking Canada’s 10-million-tonne fuel refinery as an example, three typical mature heavy oil processing technologies, hydrocracking, delayed coking and solvent deasphalting, are selected according to the fully processed diluted pitch design, vacuum residue processing, Processing Hydrocracking process, in order to maximize the production of diesel for the purpose, using PIMS linear programming software, a variety of oil refining technology programs and investment economics analysis and comparison. The results show that with West Texas Light Crude Oil (WTI) at a price of $ 95 / bbl, the resid hydrocracking process has the highest investment and hydrogen consumption, but the process maximizes the light weight of the bitumen The high yield of light oil in the whole plant and the reliable and reliable supply of natural gas, electricity and hydrogen in the local area are the best solutions for the project implementation. Delayed coking and solvent deasphalting both have low investment and operating costs, but low light oil yield. In the case of sufficient natural gas supply and moderate price in Canada, a large amount of high-sulfur petroleum coke and asphalt can only be used As a landfill waste treatment, the economy is worse.