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首页> 外文会议>85th Annual GPA(Gas Processors Association) Convention 2006 vol.1 >MERCAPTAN REMOVAL FROM A GAS STREAM USING MOLECULAR SIEVE AND SELEXOL
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MERCAPTAN REMOVAL FROM A GAS STREAM USING MOLECULAR SIEVE AND SELEXOL

机译：使用分子筛和固醇从煤气流中去除硫醇

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摘要

Molecular Sieve is commonly used to remove water from high pressure gas streams as well as mercaptans and other contaminants from liquid product streams. However, only a small number of plants world wide utilize Molecular Sieve to remove mercaptan compounds from process gas streams, and most of these plants utilize the sulfur-containing regeneration gas stream for fuel, which commonly has lower quality standards than pipeline quality gas. At the Indian Basin Gas Plant, Marathon has chosen to use both Molecular Sieve for primary mercaptan removal and Selexol for treating of the regeneration gas to meet pipeline specifications. Not only can the gas streams meet pipeline specifications, but the NGL stream recovered downstream from mercaptan removal also complies with pipeline sulfur specifications without further treating.This paper describes the particulars of the configuration that Marathon has chosen to use at the Indian Basin Gas Plant for mercaptan removal from the process gas stream prior to Cryogenic NGL recovery. The configuration employs a unique set of process steps that were aimed at minimizing the capital costs of the project as well as operating costs, while maintaining a robust operability of the overall system. The paper also addresses some of the problems that were encountered during the implementation of this process and offers some suggestions for future projects of a similar nature.
机译：分子筛通常用于去除高压气流中的水以及液态产品流中的硫醇和其他污染物。但是，全世界只有少数工厂使用分子筛从工艺气流中去除硫醇化合物，而这些工厂中的大多数都将含硫的再生气流用作燃料，通常其质量标准低于管道质量的气体。在印度盆地天然气厂，马拉松已经选择使用分子筛进行一次硫醇的去除，同时使用Selexol来处理再生气以满足管道规格。气体流不仅符合管道规格，而且从硫醇去除下游回收的NGL物流也符合管道硫规格，无需进一步处理。本文介绍了马拉松选择在印度盆地天然气厂使用的配置的详细信息在低温NGL回收之前从工艺气流中去除硫醇。该配置采用一组独特的过程步骤，旨在最小化项目的资本成本以及运营成本，同时保持整个系统的强大可操作性。本文还解决了在此过程的实施过程中遇到的一些问题，并为类似性质的未来项目提供了一些建议。

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