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US07674325B2 Solvent use and regeneration 有权
溶剂使用和再生

Solvent use and regeneration
Abstract:
An absorber (110) in a gas treatment plant (100) produces a rich solvent (116) that is flashed to produce flashed rich solvent (134D) and recycle gas (132D), wherein the recycle gas (132D) is not mixed with the absorber feed gas (112) as commonly practiced, but mixed with the rich solvent (116). Such configurations exhibit superior rich solvent loading, thereby reducing solvent circulation. Further contemplated gas treatment plants (100)may also include a regenerator (150) in which carbon dioxide from atmospheric flashed vapor (142) of the rich solvent (144) is employed as a stripping gas in a regenerator (150) to strip hydrogen sulfide from the rich solvent (144), and wherein sweet gas (114) is employed to strip the carbon dioxide from the rich solvent (144).
Abstract(Chinese):

气体处理设备（100）中的吸收器（110）产生富溶剂（116），其被闪蒸以产生闪蒸的富溶剂（134D）和再循环气体（132D），其中循环气体（132D）不与 吸收剂进料气体（112），但与富溶剂（116）混合。 这种配置表现出优异的富溶剂负载，从而减少溶剂循环。 进一步考虑的气体处理设备（100）还可以包括再生器（150），其中来自富溶剂（144）的大气闪蒸汽（142）的二氧化碳用作再生器（150）中的汽提气体以分离硫化氢 来自富溶剂（144），并且其中使用甜味气体（114）从富溶剂（144）中分离二氧化碳。

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