{"title":"新型清洁制氢和发电化学工艺的建模与模拟","authors":"Muhammad Ishaq, Ibrahim Dincer","doi":"10.1016/j.compchemeng.2024.108767","DOIUrl":null,"url":null,"abstract":"<div><p>The present work aims to develop a novel chemical process for clean hydrogen and power production and simulate it accordingly through a unique thermodynamic equilibrium model. This particular process is based on a partial oxidation of hydrogen sulfide (H<sub>2</sub>S) at superadiabatic conditions to study its respective chemical products. The simulation of superadiabatic partial oxidation of H<sub>2</sub>S is developed through the present model for the first time in the Aspen Plus. The process is further studied by varying different operating variables with an overall goal of optimizing the H<sub>2</sub>S conversion into hydrogen. The developed model predicts a satisfactory H<sub>2</sub> production flow rate coupled with a low-sulfur dioxide (SO<sub>2</sub>) output within the superadiabatic partial oxidation regime at an operating pressure below 0.5 bar. The H<sub>2</sub>S conversion into H<sub>2</sub> is then found to be 23.48 % at 0.25 bar. The overall energy and exergy efficiencies of the system are found to be 87.51 % and 70.08 % respectively. The dissociation of H<sub>2</sub>S in the presence of stoichiometric air results in elemental sulfur and hydrogen production rates of 0.0019 kg/s and 0.0012 kg/s, respectively.</p></div>","PeriodicalId":286,"journal":{"name":"Computers & Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":3.9000,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0098135424001856/pdfft?md5=c46f059cadf0b8079480165ac45eafcd&pid=1-s2.0-S0098135424001856-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Modeling and simulation of a novel chemical process for clean hydrogen and power generation\",\"authors\":\"Muhammad Ishaq, Ibrahim Dincer\",\"doi\":\"10.1016/j.compchemeng.2024.108767\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The present work aims to develop a novel chemical process for clean hydrogen and power production and simulate it accordingly through a unique thermodynamic equilibrium model. This particular process is based on a partial oxidation of hydrogen sulfide (H<sub>2</sub>S) at superadiabatic conditions to study its respective chemical products. The simulation of superadiabatic partial oxidation of H<sub>2</sub>S is developed through the present model for the first time in the Aspen Plus. The process is further studied by varying different operating variables with an overall goal of optimizing the H<sub>2</sub>S conversion into hydrogen. The developed model predicts a satisfactory H<sub>2</sub> production flow rate coupled with a low-sulfur dioxide (SO<sub>2</sub>) output within the superadiabatic partial oxidation regime at an operating pressure below 0.5 bar. The H<sub>2</sub>S conversion into H<sub>2</sub> is then found to be 23.48 % at 0.25 bar. The overall energy and exergy efficiencies of the system are found to be 87.51 % and 70.08 % respectively. The dissociation of H<sub>2</sub>S in the presence of stoichiometric air results in elemental sulfur and hydrogen production rates of 0.0019 kg/s and 0.0012 kg/s, respectively.</p></div>\",\"PeriodicalId\":286,\"journal\":{\"name\":\"Computers & Chemical Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.9000,\"publicationDate\":\"2024-06-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S0098135424001856/pdfft?md5=c46f059cadf0b8079480165ac45eafcd&pid=1-s2.0-S0098135424001856-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Computers & Chemical Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0098135424001856\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Computers & Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0098135424001856","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS","Score":null,"Total":0}
Modeling and simulation of a novel chemical process for clean hydrogen and power generation
The present work aims to develop a novel chemical process for clean hydrogen and power production and simulate it accordingly through a unique thermodynamic equilibrium model. This particular process is based on a partial oxidation of hydrogen sulfide (H2S) at superadiabatic conditions to study its respective chemical products. The simulation of superadiabatic partial oxidation of H2S is developed through the present model for the first time in the Aspen Plus. The process is further studied by varying different operating variables with an overall goal of optimizing the H2S conversion into hydrogen. The developed model predicts a satisfactory H2 production flow rate coupled with a low-sulfur dioxide (SO2) output within the superadiabatic partial oxidation regime at an operating pressure below 0.5 bar. The H2S conversion into H2 is then found to be 23.48 % at 0.25 bar. The overall energy and exergy efficiencies of the system are found to be 87.51 % and 70.08 % respectively. The dissociation of H2S in the presence of stoichiometric air results in elemental sulfur and hydrogen production rates of 0.0019 kg/s and 0.0012 kg/s, respectively.
期刊介绍:
Computers & Chemical Engineering is primarily a journal of record for new developments in the application of computing and systems technology to chemical engineering problems.