运用多氢源匹配法设计氢分配网络

石油炼化企业中氢网络的优化对提高氢资源的利用率意义重大,以降低氢消耗和简化集成方法为目标提出了一种氢回用网络的设计新方法。在向一个氢阱分配氢源时,优先分配内部氢源,并将浓度刚好高于和刚好低于该氢阱入口浓度的氢源进行匹配利用,从而最大限度地降低外部氢源消耗。对文献中几个实例的研究表明,本文方法得到的结果可与文献方法得到的目标值相媲美,而设计步骤简单计算量小,可用手算即能完成,说明本文提出的方法是可行的。另外,本文方法不仅可以得出氢消耗目标值,还可以同时得出氢网络设计。

Design of hydrogen distribution networks by source matching method

The optimization of hydrogen network is important for improving the availability of hydrogen resources in a refinery.A source matching method for design of hydrogen distribution networks was presented to reduce hydrogen consumption and simplify the network integration method.When a hydrogen sink is satisfied,the internal sources should be reused first.The source whose concentration is just higher than the sink concentration(HCS)and the source whose concentration is just lower than the sink concentration(LCS)are used to satisfy the sink.This can reduce hydrogen consumption.A few literature examples were investigated.The results show that the amounts of hydrogen consumptions of the designs obtained in this work are very close to that obtained in the literature,and the structures of the designs obtained in this work are not complex compared with that obtained in the literature.The proposed procedure of determining the matching relationships of sources and sinks is very simple.