Simulation of H2S and CO2 removal from IGCC syngas by cryogenic distillation

Li, Hongwei; Zhang, Rongjun; Wang, Tianye; Sun, Xiuyun; Hou, Chaopeng; Xu, Ruo; Wu, Yu; Tang, Zhigang

doi:10.1016/j.ccst.2021.100012

Cited by 21 publications

(6 citation statements)

References 57 publications

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“…In H 2 S removal, the process starts with the compression of the gas stream to a high pressure and then cooling to a very low temperature below the boiling point of H 2 S, typically around −50 °C. 397 This causes the H 2 S gas to condense and form a liquid, which can be removed from the gas stream via the distillation method. The process requires a significant amount of energy to cool the natural gas stream to very low temperatures necessary for the H 2 S to condense.…”

Section: Technologies For H2s Capture and Removalmentioning

confidence: 99%

Latest technological advances and insights into capture and removal of hydrogen sulfide: a critical review

Aminuddin,

Bustam,

Johari

2024

RSC Sustain.

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Section: Technologies For H2s Capture and Removalmentioning

confidence: 99%

Latest technological advances and insights into capture and removal of hydrogen sulfide: a critical review

Aminuddin,

Bustam,

Johari

2024

RSC Sustain.

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“…The fast growth of industrial sector and the rising awareness of global warming have led to strong demand for an effective yet economical gas separation technology. Different from the conventional energy‐intensive gas separation techniques such as amine absorption, 1 cryogenic distillation, 2 and pressure swing adsorption, 3 membrane technology stands out as a superior candidate. Indeed, membrane separation technology offers several benefits such as simplicity in operation, environmental friendly, ease of scaling up, compact size, low maintenance required, and most importantly, cost‐effectiveness 4–6 .…”

Section: Introductionmentioning

confidence: 99%

“…Another crucial factor in assessing the effectiveness of membrane gas separation is gas selectivity, whereby a higher gas selectivity indicates a better separation efficiency of a process. The gas selectivity (α A=B ) is expressed as Equation (2).…”

Section: Introductionmentioning

confidence: 99%

Polyimide blend metal–organic framework‐based mixed matrix membrane for gas separation: A review

Lai,

Tan

2023

Asia-Pacific J Chem Eng

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Polyimide (PI), a glassy polymer, suffers from permeability–selectivity trade‐off and plasticization, which restrict its gas separation performance. Instead of exploring new materials, polymer blend and mixed matrix membrane (MMM) emerge as promising approaches in improving membrane gas separation efficiency attributed to their simplicity and cost efficiency. However, polymer immiscibility and polymer‐filler incompatibility are the main challenges encountered in these two approaches, respectively. Thus far, only limited reviews target the comparison between PI/glassy and PI/rubbery polymer blends. Besides, the review on improving the compatibility between polymer and filler in PI‐metal–organic framework (MOF) MMM is also lacking. Hence, this review aims to assess the gas separation characteristics of PI blended with glassy and rubbery polymers, focusing on the blend miscibility. It was discovered that the casting solvent's solubility parameter and solvent volatility play a part in governing the blend miscibility. Meanwhile, the efficiency of surface functionalization and ionic liquid addition in improving the polymer–filler compatibility in MMM is also reviewed. The wet method for filler incorporation demonstrates a more homogeneous filler dispersion within the membrane. Hence, its employment in MOF‐based MMM fabrication can be explored further.

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“…Most of the world's energy is generated by burning fossil fuels, which are responsible for greenhouse gas (GHG) emissions, especially carbon dioxide (CO 2 ). 1 Almost 85% of the power production across the world comes from fossil fuels. 2 Globally, 40% of total electricity is produced by coal combustion 3 and around 40% of CO 2 emissions are due to coal combustion.…”

Section: Introductionmentioning

confidence: 99%

“…Most of the world's energy is generated by burning fossil fuels, which are responsible for greenhouse gas (GHG) emissions, especially carbon dioxide (CO 2 ) 1 . Almost 85% of the power production across the world comes from fossil fuels 2 .…”

Section: Introductionmentioning

confidence: 99%

Pre‐combustioncarbon dioxide capture: A thermo‐economic comparison for dual‐stage Selexol process and combinedSulfinol‐Selexolprocess

Ramzan

Rizwan

Zaman

et al. 2022

Intl J of Energy Research

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Summary The emission of greenhouse gases from fossil‐fueled power plants is a major concern in power generation sector. Carbon dioxide (CO2) emissions constitute the major portion of the greenhouse gases. Among several opportunities available to reduce CO2, carbon capture and sequestration (CCS) is considered to be a possible option for CO2 mitigation. However, implementation of CCS increases the cost of power generation significantly. The main effort of this study is to explore the technical and economic aspects of a dual‐stage Selexol process and a proposed process named combined Sulfinol‐Selexol process, for pre‐combustion capture. The combined CO2 capture process utilizes Sulfinol‐M solvent‐based process for the selective capture of hydrogen sulfide and dimethyl ether of polyethylene glycol solvent‐based Selexol process for CO2 capture. The performance of both processes is assessed and compared in terms of energy consumptions, operating cost, and capital cost by simulating in Aspen HYSYS V.11. Sensitivity analysis for lean solvent inlet temperature, pressures of multi‐flash system and number of stages of the absorption columns is performed to improve both processes. The proposed combined process is 5.8% more economical than the baseline dual‐stage Selexol process as well as its overall process is simpler. However, after sensitivity analysis, both processes improved, and the dual‐stage Selexol process is found to be 3.31% more economical than the combined Sulfinol‐Selexol process.

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Simulation of H2S and CO2 removal from IGCC syngas by cryogenic distillation

Cited by 21 publications

References 57 publications

Latest technological advances and insights into capture and removal of hydrogen sulfide: a critical review

Latest technological advances and insights into capture and removal of hydrogen sulfide: a critical review

Polyimide blend metal–organic framework‐based mixed matrix membrane for gas separation: A review

Pre‐combustioncarbon dioxide capture: A thermo‐economic comparison for dual‐stage Selexol process and combinedSulfinol‐Selexolprocess

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