提高采收率的酸气制备:不同脱水工艺的技术经济分析

IF 2.3 4区工程技术 Q3 CHEMISTRY, MULTIDISCIPLINARY

Separation Science and Technology Pub Date : 2023-07-24 DOI:10.1080/01496395.2023.2219379

H. Nikkhah, A. Nikkhah, Y. Ghalavand

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引用次数: 3

摘要

天然气处理厂是向大气中排放二氧化碳的一个来源。为了解决这个问题，可能会向井中注入二氧化碳，并将其用于提高石油采收率(EOR)。然而，主要的问题是酸性气体中的水含量高，在管道中的高压下可以转化为水合物。本文在Aspen HYSYS中模拟了用两种不同溶剂(单乙二醇(MEG)、三乙二醇(TEG))进行的两种不同工艺(溶剂萃取、汽提)。气提法能耗更高，对于MEG和TEG溶剂，气提法能耗分别比溶剂萃取法低31.8%和56.8%。水合物形成分析表明，在汽提气法中采用MEG作为溶剂可使作业区域更加安全。经济评价表明，气提法与溶剂萃取法相比，年总成本节约22.2%。图形抽象

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Acid gas preparation for enhanced oil recovery: techno-economic analysis of different dehydration processes

ABSTRACT The natural gas treatment plant is one source of CO2 emissions into the atmosphere. To tackle this issue, it is probable to inject CO2 into the wells and it can be used for enhanced oil recovery (EOR) application. However, the main setback is the high content of water in acid gas that could be converted to hydrate at high pressure in the pipelines. In this article, two different processes (solvent extraction, stripping gas) with two different solvents mono ethylene glycol (MEG), Tri ethylene glycol (TEG), are simulated in Aspen HYSYS. The stripping gas method is more efficient in terms of energy consumption, consuming 31.8% and 56.8% less energy than solvent extraction method for MEG and TEG solvents, respectively. Hydrate formation analyses showed that applying MEG as a solvent in the stripping gas method leads to a safer operation region. Economic evaluation depicts that the stripping gas method saves the total annual cost by 22.2% compared to solvent extraction. GRAPHICAL ABSTRACT

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来源期刊

Separation Science and Technology 工程技术-工程：化工

CiteScore

6.10

自引率

3.60%

发文量

131

审稿时长

5.7 months

期刊介绍： This international journal deals with fundamental and applied aspects of separation processes related to a number of fields. A wide range of topics are covered in the journal including adsorption, membranes, extraction, distillation, absorption, centrifugation, crystallization, precipitation, reactive separations, hybrid processes, continuous separations, carbon capture, flocculation and magnetic separations. The journal focuses on state of the art preparative separations and theoretical contributions to the field of separation science. Applications include environmental, energy, water, and biotechnology. The journal does not publish analytical separation papers unless they contain new fundamental contributions to the field of separation science.