制氢装置转化炉运行工艺参数的研究

对中国石油独山子石化分公司两套制氢装置在不同进料负荷下转化炉的实际运行工艺参数进行了分析研究,发现大制氢装置转化深度低的关键是其反应压力高以及碳空速高所致。装置运行结果表明,优化设计转化炉除考虑低水碳比和高转化炉入/出口温度外,还应选择高反应压力和低碳空速,这有利于降低原料消耗和综合能耗。通过正确调节转化炉运行工艺参数,大小制氢装置在高进料负荷下都可得到较低的综合能耗,而大制氢装置在较低进料负荷下可得到低于设计值的原料单耗和综合能耗。

STUDY ON THE OPERATION PARAMETERS OF REFORMER IN HYDROGEN PRODUCTION PLANT

The actual operation parameters of reformers in two hydrogen production units having various capacities (unit A for the large one and unit B for the small one) are studied. It is found that high reaction pressure and high carbon space velocity of the reformer are the main causes of low conversion in unit A. The running data showed that when optimizing the design of reformer, besides considering low steam/carbon ratio and high inlet/outlet temperature, selecting higher reaction pressure and lower carbon space velocity will be helpful to reduce the consumptions of feed gas and comprehensive energy. By adjusting the operation parameters of reformer properly, both unit A and B achieve low comprehensive energy consumption under high processing capacity, and for unit A even at relatively low processing capacity, the consumptions of feed gas and comprehensive energy are less than those of the design data.