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Refinery hydrogen consumers (e.g., hydrocrackers and hydro-treaters) are normally operated at high pressure. The make-up hydrogen and recycle hydrogen compressors are commonly used to increase the pressure of the hydrogen streams. This requires compression work, which can be a major contributor to the operating cost. Therefore, apart from minimizing the flowrate of hydrogen utility, it is also important...
This paper introduces the generalized Improved Problem Table for flowrate targeting of hydrogen networks with single intermediate header. It consists of a stepwise procedure to locate the minimum flowrate targets for a hydrogen network, i.e., hydrogen utility, hydrogen header, waste hydrogen streams, as well as feed and product streams of purification system, prior to the design of hydrogen network...
Refinery hydrogen consumers (i.e. hydrocracker, hydro-treater) are operated in high pressure. The makeup hydrogen and recycle hydrogen compressors are placed to increase the pressure of hydrogen streams. It leads to a large contribution on compression work and operating cost. Therefore, except for the minimizing the flowrate of hydrogen utility, it is extremely important to reduce the compression...
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