Novel ethane recovery process from natural gas using ZIF-8/water-glycol slurry: Techno-economic and energy consumption evaluation

被引：2

作者：

Zhang, Ruihang ^{[1
]}

Peng, Xiaowan ^{[1
]}

Ge, Bingyue ^{[2
]}

Deng, Chun ^{[1
]}

Liu, Bei ^{[1
]}

Sun, Changyu ^{[1
]}

Chen, Guangjin ^{[1
]}

机构：

[1] China Univ Petr, Coll Chem Engn & Environm, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China

[2] China Petr & Nat Gas Co Ltd, Xinjiang Oil Field Branch Co, Karamay 834000, Peoples R China

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2024年 / 343卷

基金：

中国国家自然科学基金;

关键词：

Natural gas; Light hydrocarbon recovery; Porous slurry; Process modelling; Economic analysis; METAL-ORGANIC FRAMEWORK; SEPARATION; MEMBRANES; METHANE; ZIF-8;

D O I：

10.1016/j.seppur.2024.127117

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Ethane recovery is a vital step in natural gas processing and can provide raw material for ethylene production. The widely used cryogenic separation process is energy intensive, and the absorption-adsorption coupling process based on porous ZIF-8 slurry (SorbPro I) has been proven to be more energy-efficient. To further reduce energy consumption, this paper proposes a novel process with two absorption-adsorption columns (SorbPro II) and establishes its mathematical model by equilibrium stage method. Taking the natural gas with an ethane content of 6.19 mol% at 300,000 Nm3/d as a case study, the operating parameters of SorbPro I and SorbPro II are optimized by sensitivity analysis, and ethane recovery ratio of both processes can reach 90 %. The technoeconomic/energy consumption evaluations of the two processes are conducted. Results show that the total annualized cost and the energy consumption per Nm3 feed gas of SorbPro II are 41.7 % and 47.7 % lower than those of SorbPro I, respectively. It indicates that SorbPro II has the same separation performance as SorbPro I, but is more economical.

引用

页数：11