{"title":"以大理石废料为原料的CaO催化剂催化甘油生成乳酸和氢气","authors":"Mohd Mohsin Ikram, Virendra Kumar Saharan","doi":"10.1007/s10163-025-02275-8","DOIUrl":null,"url":null,"abstract":"<div><p>This study investigates the production of lactic acid from glycerol, a byproduct of biodiesel production, using CaO as a catalyst. CaO was synthesized from marble waste powder by treating it with nitric acid and then calcining it at 850 °C. Several analytical techniques, including XRD, TEM-EDS, BET surface area analysis, and FTIR, were employed to study the morphology, crystal size, surface area, pore size, and particle size distribution of the synthesized Cao. The chemical reactions took place in a batch reactor. The optimal reaction parameters were a molar ratio of CaO to glycerol of 0.3, temperature of 290 °C, and a reaction time of 150 min. The reaction products were analysed using HPLC and GC. The maximum yield of lactic acid obtained was 43 mol%, and amount of H<sub>2</sub> produced was 5.25 mol. Other products formed included isovaleric acid and acetic acid.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 5","pages":"3222 - 3237"},"PeriodicalIF":3.0000,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Valorization of glycerol into lactic acid and hydrogen using CaO catalyst derived from marble waste\",\"authors\":\"Mohd Mohsin Ikram, Virendra Kumar Saharan\",\"doi\":\"10.1007/s10163-025-02275-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study investigates the production of lactic acid from glycerol, a byproduct of biodiesel production, using CaO as a catalyst. CaO was synthesized from marble waste powder by treating it with nitric acid and then calcining it at 850 °C. Several analytical techniques, including XRD, TEM-EDS, BET surface area analysis, and FTIR, were employed to study the morphology, crystal size, surface area, pore size, and particle size distribution of the synthesized Cao. The chemical reactions took place in a batch reactor. The optimal reaction parameters were a molar ratio of CaO to glycerol of 0.3, temperature of 290 °C, and a reaction time of 150 min. The reaction products were analysed using HPLC and GC. The maximum yield of lactic acid obtained was 43 mol%, and amount of H<sub>2</sub> produced was 5.25 mol. Other products formed included isovaleric acid and acetic acid.</p><h3>Graphical abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":643,\"journal\":{\"name\":\"Journal of Material Cycles and Waste Management\",\"volume\":\"27 5\",\"pages\":\"3222 - 3237\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2025-06-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Material Cycles and Waste Management\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10163-025-02275-8\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Material Cycles and Waste Management","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s10163-025-02275-8","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Valorization of glycerol into lactic acid and hydrogen using CaO catalyst derived from marble waste
This study investigates the production of lactic acid from glycerol, a byproduct of biodiesel production, using CaO as a catalyst. CaO was synthesized from marble waste powder by treating it with nitric acid and then calcining it at 850 °C. Several analytical techniques, including XRD, TEM-EDS, BET surface area analysis, and FTIR, were employed to study the morphology, crystal size, surface area, pore size, and particle size distribution of the synthesized Cao. The chemical reactions took place in a batch reactor. The optimal reaction parameters were a molar ratio of CaO to glycerol of 0.3, temperature of 290 °C, and a reaction time of 150 min. The reaction products were analysed using HPLC and GC. The maximum yield of lactic acid obtained was 43 mol%, and amount of H2 produced was 5.25 mol. Other products formed included isovaleric acid and acetic acid.
期刊介绍：
The Journal of Material Cycles and Waste Management has a twofold focus: research in technical, political, and environmental problems of material cycles and waste management; and information that contributes to the development of an interdisciplinary science of material cycles and waste management. Its aim is to develop solutions and prescriptions for material cycles.
The journal publishes original articles, reviews, and invited papers from a wide range of disciplines related to material cycles and waste management.
The journal is published in cooperation with the Japan Society of Material Cycles and Waste Management (JSMCWM) and the Korea Society of Waste Management (KSWM).
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