【摘要】 为解决炼油厂加氢工艺氢气的亏缺问题,优化氢气系统,提高氢气的有效利用率,对集成制氢提纯单元的氢气系统进行详细的物料衡算分析,提出两种氢气提纯回用案例,利用改进问题表法确定氢气公用工程、中变气和制氢原料天然气的流率优化值。结果表明,在集成制氢提纯单元的氢气系统中,直接利用提纯中变气并对氢气系统进行整体优化,可以减少33.0%的制氢天然气用量和66.3%的氢气公用工程的用量。更多还原

【Abstract】 To alleviate hydrogen deficiency in the refinery hydrogenation process, optimize the hydrogen system, and improve the effective utilization of hydrogen, detail mass balance analysis of hydrogen system was conducted, and two purification reuse scenarios were proposed. The optimal flowrates of hydrogen utility, shifted gas and natural gas were determined by using the improved problem table method. The results show that the direct utilization of the shifted gas reduces the flowrates of 33.0% of natural gas and 66.3% of hydrogen utility.更多还原