{"title":"纤维素和富含木质素的生物质对催化剂性能的影响:核桃壳和玉米秸秆气化研究","authors":"","doi":"10.1007/s12155-024-10720-z","DOIUrl":null,"url":null,"abstract":"<h3>Abstract</h3> <p>This study investigates the gasification of cellulose, lignin, corn stover (rich in cellulose) and walnut shells (rich in lignin) using CaO as a catalyst. The objective was to understand the effect of the different biomass components on the gasification products and the performance of the CaO catalyst. Notable results indicate distinctive product distribution: cellulose yields higher liquid (58%) and CO (95.36%) products, while lignin produces increased H<sub>2</sub> (47.88%), CH<sub>4</sub> (34.34%), and CO<sub>2</sub> (29.58%). Gasification of biomass feedstocks, corn stover (cellulose-rich) and walnut shell (lignin-rich), aligns with pure cellulose and lignin trends. Catalyst characterization highlights that cellulose exhibits a greater tendency for coke formation, leading to elevated tar compounds and coke deposition on the catalyst surface. The solid residue from cellulose gasification displays a smaller pore volume (5.70 m<sup>2</sup>/g) and specific surface area, indicating undesirable catalyst rearrangement. XRD analysis indicates a higher carbonation rate of CaO in lignin-rich gasification, leading to increased CaCO<sub>3</sub> formation. Further results show a higher CO<sub>2</sub> concentration (3.35 mol/kg) and lower CO production (0.54 mol/kg) in corn stover gasification, contrasting with walnut shell (CO<sub>2</sub>: 14.24 mol/kg, CO: 1.24 mol/kg). The study underscores the quantitative assessment of biomass composition for optimizing gasification processes, vital for catalyst selection and ensuring efficient CO<sub>2</sub> capture in industrial applications.</p>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":null,"pages":null},"PeriodicalIF":3.1000,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Influence of Cellulose and Lignin-Rich Biomass on Catalyst Performance: A Study with Walnut Shell and Corn Stover Gasification\",\"authors\":\"\",\"doi\":\"10.1007/s12155-024-10720-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3>Abstract</h3> <p>This study investigates the gasification of cellulose, lignin, corn stover (rich in cellulose) and walnut shells (rich in lignin) using CaO as a catalyst. The objective was to understand the effect of the different biomass components on the gasification products and the performance of the CaO catalyst. Notable results indicate distinctive product distribution: cellulose yields higher liquid (58%) and CO (95.36%) products, while lignin produces increased H<sub>2</sub> (47.88%), CH<sub>4</sub> (34.34%), and CO<sub>2</sub> (29.58%). Gasification of biomass feedstocks, corn stover (cellulose-rich) and walnut shell (lignin-rich), aligns with pure cellulose and lignin trends. Catalyst characterization highlights that cellulose exhibits a greater tendency for coke formation, leading to elevated tar compounds and coke deposition on the catalyst surface. The solid residue from cellulose gasification displays a smaller pore volume (5.70 m<sup>2</sup>/g) and specific surface area, indicating undesirable catalyst rearrangement. XRD analysis indicates a higher carbonation rate of CaO in lignin-rich gasification, leading to increased CaCO<sub>3</sub> formation. Further results show a higher CO<sub>2</sub> concentration (3.35 mol/kg) and lower CO production (0.54 mol/kg) in corn stover gasification, contrasting with walnut shell (CO<sub>2</sub>: 14.24 mol/kg, CO: 1.24 mol/kg). The study underscores the quantitative assessment of biomass composition for optimizing gasification processes, vital for catalyst selection and ensuring efficient CO<sub>2</sub> capture in industrial applications.</p>\",\"PeriodicalId\":487,\"journal\":{\"name\":\"BioEnergy Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.1000,\"publicationDate\":\"2024-01-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"BioEnergy Research\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1007/s12155-024-10720-z\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"BioEnergy Research","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s12155-024-10720-z","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
摘要
摘要 本研究以 CaO 为催化剂,对纤维素、木质素、玉米秸秆(富含纤维素)和核桃壳(富含木质素)的气化进行了研究。目的是了解不同生物质成分对气化产物和 CaO 催化剂性能的影响。显著的结果显示了不同的产物分布:纤维素产生较多的液体(58%)和二氧化碳(95.36%)产物,而木质素则产生较多的 H2(47.88%)、CH4(34.34%)和二氧化碳(29.58%)。生物质原料玉米秸秆(富含纤维素)和核桃壳(富含木质素)的气化与纯纤维素和木质素的趋势一致。催化剂特性分析表明,纤维素更容易形成焦炭,导致焦油化合物和焦炭沉积在催化剂表面。纤维素气化产生的固体残渣显示出较小的孔隙体积(5.70 m2/g)和比表面积,表明催化剂发生了不良的重排。XRD 分析表明,在富含木质素的气化过程中,CaO 的碳化率较高,导致 CaCO3 的形成增加。进一步的结果表明,玉米秸秆气化过程中二氧化碳浓度较高(3.35 摩尔/千克),而一氧化碳产生量较低(0.54 摩尔/千克),与核桃壳(二氧化碳:14.24 摩尔/千克,一氧化碳:1.24 摩尔/千克)形成鲜明对比。这项研究强调了对生物质成分进行定量评估以优化气化过程的重要性,这对催化剂的选择和确保工业应用中二氧化碳的高效捕获至关重要。
Influence of Cellulose and Lignin-Rich Biomass on Catalyst Performance: A Study with Walnut Shell and Corn Stover Gasification
Abstract
This study investigates the gasification of cellulose, lignin, corn stover (rich in cellulose) and walnut shells (rich in lignin) using CaO as a catalyst. The objective was to understand the effect of the different biomass components on the gasification products and the performance of the CaO catalyst. Notable results indicate distinctive product distribution: cellulose yields higher liquid (58%) and CO (95.36%) products, while lignin produces increased H2 (47.88%), CH4 (34.34%), and CO2 (29.58%). Gasification of biomass feedstocks, corn stover (cellulose-rich) and walnut shell (lignin-rich), aligns with pure cellulose and lignin trends. Catalyst characterization highlights that cellulose exhibits a greater tendency for coke formation, leading to elevated tar compounds and coke deposition on the catalyst surface. The solid residue from cellulose gasification displays a smaller pore volume (5.70 m2/g) and specific surface area, indicating undesirable catalyst rearrangement. XRD analysis indicates a higher carbonation rate of CaO in lignin-rich gasification, leading to increased CaCO3 formation. Further results show a higher CO2 concentration (3.35 mol/kg) and lower CO production (0.54 mol/kg) in corn stover gasification, contrasting with walnut shell (CO2: 14.24 mol/kg, CO: 1.24 mol/kg). The study underscores the quantitative assessment of biomass composition for optimizing gasification processes, vital for catalyst selection and ensuring efficient CO2 capture in industrial applications.
期刊介绍:
BioEnergy Research fills a void in the rapidly growing area of feedstock biology research related to biomass, biofuels, and bioenergy. The journal publishes a wide range of articles, including peer-reviewed scientific research, reviews, perspectives and commentary, industry news, and government policy updates. Its coverage brings together a uniquely broad combination of disciplines with a common focus on feedstock biology and science, related to biomass, biofeedstock, and bioenergy production.