油页岩炼制热解油气提质制氢过程集成创新

发布时间：2018-02-27 07:22

本文关键词： 油页岩甲烷水蒸气重整加氢提质过程集成　出处：《华南理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：油页岩作为最具潜力的石油替代能源之一,其开发与利用日益得到各界的重视。由于我国富煤、少油、少气,但具有丰富油页岩储量这一能源结构特点,使我国很早就进行了油页岩炼制工艺的研究和开发。目前油页岩的利用以干馏炼油为主。尽管抚顺油页岩干馏技术是目前我国较为成熟的干馏技术,但其仍存在以下问题:油页岩干馏过程的剩余干馏气未能合理利用;油页岩干馏过程产生的碎屑页岩利用程度不高;炼制所得的页岩油含有大量不利于运输和储存的杂原子组分,如直接采用外购氢气进行加氢提质,将导致油页岩炼制过程的经济性能欠佳。针对上述问题,本文提出了一种油页岩干馏气重整制氢提质的集成炼制新流程,该过程利用干馏过程产生的剩余干馏气与水蒸气在CO2吸收剂Ca O的作用下进行甲烷水蒸气重整反应制得氢气,一部分氢气供应给页岩油加氢提质过程,页岩油经加氢提质生成柴油、石脑油和LPG,剩余的氢气作为产品进行销售,油页岩干馏过程排放的碎屑页岩为Ca O的再生提供热量,并实现热平衡。整个过程产生的灰渣送往建材生产单元生产页岩砖和陶粒以减少环境污染和提升经济效益。通过对集成创新过程和传统抚顺油页岩炼制过程的建模和模拟,并以模拟流程为基础对两个过程进行了技术经济分析,结果表明这一技术创新和过程集成使得现有油页岩炼制过程的投资利润率从10.53%提高到18.89%。
[Abstract]:As one of the most potential alternative energy sources, oil shale has been paid more and more attention to its development and utilization. Because China is rich in coal, less oil and less gas, it is rich in oil shale reserves. The oil shale refining process has been studied and developed in our country for a long time. At present, the main use of oil shale is distillation oil refining, although Fushun oil shale retorting technology is a relatively mature distillation technology in our country at present. However, the following problems still exist: the residual distillation gas in the oil shale retorting process is not properly utilized, the detrital shale produced by the oil shale retorting process is not utilized to a high degree; The shale oil obtained from the refining process contains a large number of hetero-atomic components that are not conducive to transport and storage. Direct hydrogenation of the oil shale oil by the use of external hydrogen gas will lead to poor economic performance in the oil shale refining process. In this paper, a new integrated refining process for reforming oil shale dry-run gas to produce hydrogen is proposed. The residual distillate gas produced by the distillation process and water vapor react with CO2 absorbent Cao to produce hydrogen. Some of the hydrogen was supplied to the hydrogenation process of the shale oil, which produced diesel oil, naphtha oil and LPG. the remaining hydrogen was sold as a product. The debris shale emitted from the oil shale retorting process provided heat for the regeneration of Cao. The ash produced in the whole process is sent to the building materials production unit to produce shale brick and ceramsite in order to reduce environmental pollution and enhance economic benefits. By modeling and simulating the integrated innovation process and the traditional Fushun oil shale refining process, The technological and economic analysis of the two processes based on the simulation flow shows that the technological innovation and process integration increase the investment profit rate of the existing oil shale refining process from 10.53% to 18.89.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE662.5;TQ116.2

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