Experimental and simulation study on efficient CH4/N2 separation by pressure swing adsorption on silicalite-1 pellets

Jiangfeng Yang; Honghao Bai; Hua Shang; Jun Wang; Jinping Li; Shuguang Deng

doi:10.1016/j.cej.2020.124222

Experimental and simulation study on efficient CH₄/N₂ separation by pressure swing adsorption on silicalite-1 pellets

Jiangfeng Yang, Honghao Bai, Hua Shang, Jun Wang, Jinping Li, Shuguang Deng

Engineering of Matter, Transport and Energy, School for (IAFSE-SEMTE)

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

Abstract

In this work, we have studied high-silica (Si/Al = 200) zeolite silicalite-1 pellets sorbent for the separation of methane and nitrogen in a pressure swing adsorption (PSA) process. The pellet samples have well maintained similar adsorption and separation performances of the zeolite powder samples. The adsorption kinetic parameters were determined by actual breakthrough experiments on the pellet samples. The effects of feed flow and cycle time on methane product purity and recovery have been investigated. The accuracy of the numerical simulation method has been verified by the experiment data. In order to optimize the coalbed methane enrichment performance, the two-bed six-step PSA cycle was applied in the simulation. The simulation results revealed that 45% and 57% methane concentration could be achieved from 20% and 30% methane feedings with a recovery above 80%.

Original language	English (US)
Article number	124222
Journal	Chemical Engineering Journal
Volume	388
DOIs	https://doi.org/10.1016/j.cej.2020.124222
State	Published - May 15 2020

Keywords

Coalbed methane
PSA simulation
Process optimization
Silicalite-1 pellets

ASJC Scopus subject areas

Chemistry(all)
Environmental Chemistry
Chemical Engineering(all)
Industrial and Manufacturing Engineering

Access to Document

10.1016/j.cej.2020.124222

Cite this

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title = "Experimental and simulation study on efficient CH4/N2 separation by pressure swing adsorption on silicalite-1 pellets",

abstract = "In this work, we have studied high-silica (Si/Al = 200) zeolite silicalite-1 pellets sorbent for the separation of methane and nitrogen in a pressure swing adsorption (PSA) process. The pellet samples have well maintained similar adsorption and separation performances of the zeolite powder samples. The adsorption kinetic parameters were determined by actual breakthrough experiments on the pellet samples. The effects of feed flow and cycle time on methane product purity and recovery have been investigated. The accuracy of the numerical simulation method has been verified by the experiment data. In order to optimize the coalbed methane enrichment performance, the two-bed six-step PSA cycle was applied in the simulation. The simulation results revealed that 45% and 57% methane concentration could be achieved from 20% and 30% methane feedings with a recovery above 80%.",

keywords = "Coalbed methane, PSA simulation, Process optimization, Silicalite-1 pellets",

author = "Jiangfeng Yang and Honghao Bai and Hua Shang and Jun Wang and Jinping Li and Shuguang Deng",

note = "Funding Information: We show great gratitude to the National Natural Science Foundation of China (No. 21676175 and 51672186). J. Wang would like to acknowledge the support from Open Foundation of Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization (No. 2019-01) Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = may,

day = "15",

doi = "10.1016/j.cej.2020.124222",

language = "English (US)",

volume = "388",

journal = "Chemical Engineering Journal",

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T1 - Experimental and simulation study on efficient CH4/N2 separation by pressure swing adsorption on silicalite-1 pellets

AU - Yang, Jiangfeng

AU - Bai, Honghao

AU - Shang, Hua

AU - Wang, Jun

AU - Li, Jinping

AU - Deng, Shuguang

N1 - Funding Information: We show great gratitude to the National Natural Science Foundation of China (No. 21676175 and 51672186). J. Wang would like to acknowledge the support from Open Foundation of Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization (No. 2019-01) Publisher Copyright: © 2020 Elsevier B.V.

PY - 2020/5/15

Y1 - 2020/5/15

N2 - In this work, we have studied high-silica (Si/Al = 200) zeolite silicalite-1 pellets sorbent for the separation of methane and nitrogen in a pressure swing adsorption (PSA) process. The pellet samples have well maintained similar adsorption and separation performances of the zeolite powder samples. The adsorption kinetic parameters were determined by actual breakthrough experiments on the pellet samples. The effects of feed flow and cycle time on methane product purity and recovery have been investigated. The accuracy of the numerical simulation method has been verified by the experiment data. In order to optimize the coalbed methane enrichment performance, the two-bed six-step PSA cycle was applied in the simulation. The simulation results revealed that 45% and 57% methane concentration could be achieved from 20% and 30% methane feedings with a recovery above 80%.

AB - In this work, we have studied high-silica (Si/Al = 200) zeolite silicalite-1 pellets sorbent for the separation of methane and nitrogen in a pressure swing adsorption (PSA) process. The pellet samples have well maintained similar adsorption and separation performances of the zeolite powder samples. The adsorption kinetic parameters were determined by actual breakthrough experiments on the pellet samples. The effects of feed flow and cycle time on methane product purity and recovery have been investigated. The accuracy of the numerical simulation method has been verified by the experiment data. In order to optimize the coalbed methane enrichment performance, the two-bed six-step PSA cycle was applied in the simulation. The simulation results revealed that 45% and 57% methane concentration could be achieved from 20% and 30% methane feedings with a recovery above 80%.

KW - Coalbed methane

KW - PSA simulation

KW - Process optimization

KW - Silicalite-1 pellets

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