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- W2971336237 abstract "The production and consumption of natural gas is on the rise throughout the world as theresult of its wide availability, ease of transportation and use as well as clean burningcharacteristics. The first and second generation gas processing plants, designed and builtin the 1960s and 1970s were bogged down by operational inflexibility and CO2 freezingdue to the rapid change of product values. Even most modern gas processing plants areencountering problems related to operating flexibility, instability of operationalconditions due to vapor-liquid equilibrium, CO2 solid formation and energy efficiency.Ortloff have recently developed new NGL recovery processes on the basis of vapor-splitconcept. While the Ortloff processes offer relief to the first three problems in gasprocessing plants, huge energy consumption remains a major concern. A typical gasprocessing plant consists of two main processing sections, i. e. a cryogenic section andproduct recovery section. Of the two sections, cryogenic section consumes a huge amountof energy, especially by its cold utility due to the sub-ambient operating conditionrequired. Meanwhile, steam generation for reboiling purposes at the product recoverysection also contributes to the huge energy consumption. Ultimately, both result insubstantial utility cost to the plant operations; therefore optimizing energy consumptionin both areas is essential to improving plant profitability as it results in lower utility cost.This research looks for improvement opportunities in energy consumption in these twosections based on pinch analysis and maximizing the power generated from turboexpander.The study explores the utilization of available cold energy extracted from thefeed in order to reduce the cold utility requirement in cryogenic area. The study is able tosave 6% on refrigeration load for cryogenic area and generate 36% more power from theturbo expander. This could generate predicted annual savings of RM900k for this area.For product recovery area, this study introduces a prefractionator arrangement in place ofa conventional depropansier and debutanizer arrangement. Although thermal couplingarrangement requires refrigeration for condenser cooling, nevertheless it generates 54%savings on steam consumption and 37% savings on cooling duty. This is equivalent toRM 2.9mil as predicted annual savings for the plant. Moreover, there are some loose endheat exchangers that could give about RM350k savings per annum for operating cost." @default.
- W2971336237 created "2019-09-05" @default.
- W2971336237 creator A5077565139 @default.
- W2971336237 date "2007-08-01" @default.
- W2971336237 modified "2023-09-24" @default.
- W2971336237 title "Heat Integration Study on Cryogenic and Product Recovery Unitof Gas Processing Plant" @default.
- W2971336237 hasPublicationYear "2007" @default.
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