CATEGORY: HYDROGEN
Energy, Volume 62, 1 December 2013, Pages
185–195
Optimization
of refinery hydrogen distribution systems considering the number of compressors
Sidong Wu (a), Zemiao Yu (a), Xiao Feng (b), Guilian Liu (a), Chun
Deng (b), Khim Hoong Chu (a)
a Department of Chemical Engineering, Xi'an Jiaotong University, Xi'an 710049,
China
b State Key Laboratory of Heavy Oil Processing, China University of Petroleum,
Beijing 102249, China
Abstract
Growing
hydrogen demands in oil refining have forced many refiners to optimize their
hydrogen distribution networks in order to address the demands without
incurring excessive energy consumption, capital investment and operating costs.
Beyond the use of hydrogen utility, the biggest consumer of energy is the
compression power. Authors employ an exergy standard to compare hydrogen
consumption and compression power on a common basis.
The optimization of hydrogen networks should minimize the number of
hydrogen compressors, which are among the most expensive devices in a refinery.
Accordingly, Authors present two mathematical models for hydrogen distribution
network synthesis. They use a sequential optimization strategy to determine the
targets of total exergy consumption and number of compressors.
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