Han Saem Park, Hyun Jun Park, Ha Eun Lee, Seung Seok Oh, Jester Lih Jie Ling, Bhanupratap Singh Solanki, Hyungwoong Ahn, See Hoon Lee
{"title":"Process Simulation of a Dual Fluidized Bed Ca-Looping Biomass Gasifier with CuO/CaO for Enhanced Hydrogen Production","authors":"Han Saem Park, Hyun Jun Park, Ha Eun Lee, Seung Seok Oh, Jester Lih Jie Ling, Bhanupratap Singh Solanki, Hyungwoong Ahn, See Hoon Lee","doi":"10.1007/s11814-025-00521-1","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, H<sub>2</sub> production through Calcium-Looping (Ca-Looping) gasification process using biomass feedstocks, including wood waste (WW), cow manure (CM), and biocrude (BC), was investigated. This novel system employed a dual fluidized bed system, comprising a gasifier reactor with a mixture of CuO and CaO fluidized by steam, and a regenerative air reactor. Hydrogen production was investigated as a function of variations in key operating parameters, including gasification temperature (<i>T</i><sub>g</sub>), equivalence ratio (E/R), steam mass flow rate (<i>M</i><sub>steam</sub>), and CaO circulation rate (<i>C</i><sub>CaO</sub>). Enhancement in hydrogen production was not observed at temperatures above 700 °C for all feedstocks, which was confirmed to be due to the deactivation of the carbonation reaction. An increasing CO<sub>2</sub> volume fraction and decreasing H<sub>2</sub> volume fraction in the synthesis gas were observed as the <i>E</i>/<i>R</i> ratio increased. Additionally, H<sub>2</sub> production increased continuously with higher steam flow rate. CO<sub>2</sub> capturing capacity, through carbonation of CaO increased with CaO circulation rates, reaching a plateau as the circulation rate reach above 100 kg/hr. These findings highlight the potential of the biomass Ca-Looping gasification process to produce high-purity H<sub>2</sub> while significantly reducing CO<sub>2</sub> emissions, positioning it as a promising pathway for sustainable energy production.</p></div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 10","pages":"2201 - 2216"},"PeriodicalIF":3.2000,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Korean Journal of Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s11814-025-00521-1","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, H2 production through Calcium-Looping (Ca-Looping) gasification process using biomass feedstocks, including wood waste (WW), cow manure (CM), and biocrude (BC), was investigated. This novel system employed a dual fluidized bed system, comprising a gasifier reactor with a mixture of CuO and CaO fluidized by steam, and a regenerative air reactor. Hydrogen production was investigated as a function of variations in key operating parameters, including gasification temperature (Tg), equivalence ratio (E/R), steam mass flow rate (Msteam), and CaO circulation rate (CCaO). Enhancement in hydrogen production was not observed at temperatures above 700 °C for all feedstocks, which was confirmed to be due to the deactivation of the carbonation reaction. An increasing CO2 volume fraction and decreasing H2 volume fraction in the synthesis gas were observed as the E/R ratio increased. Additionally, H2 production increased continuously with higher steam flow rate. CO2 capturing capacity, through carbonation of CaO increased with CaO circulation rates, reaching a plateau as the circulation rate reach above 100 kg/hr. These findings highlight the potential of the biomass Ca-Looping gasification process to produce high-purity H2 while significantly reducing CO2 emissions, positioning it as a promising pathway for sustainable energy production.
期刊介绍:
The Korean Journal of Chemical Engineering provides a global forum for the dissemination of research in chemical engineering. The Journal publishes significant research results obtained in the Asia-Pacific region, and simultaneously introduces recent technical progress made in other areas of the world to this region. Submitted research papers must be of potential industrial significance and specifically concerned with chemical engineering. The editors will give preference to papers having a clearly stated practical scope and applicability in the areas of chemical engineering, and to those where new theoretical concepts are supported by new experimental details. The Journal also regularly publishes featured reviews on emerging and industrially important subjects of chemical engineering as well as selected papers presented at international conferences on the subjects.