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Interactions of Olivine and Silica Sand with Potassium- or Silicon-Rich Agricultural Residues under Combustion, Steam Gasification, and CO2 Gasification
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2021-09-22 , DOI: 10.1021/acs.iecr.1c02579 Gule Li 1 , Graham J. Nathan 2 , Matthias Kuba 3, 4 , Peter J. Ashman 1 , Woei L. Saw 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2021-09-22 , DOI: 10.1021/acs.iecr.1c02579 Gule Li 1 , Graham J. Nathan 2 , Matthias Kuba 3, 4 , Peter J. Ashman 1 , Woei L. Saw 1
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Interactions between olivine or silica sand and potassium (K)-rich grape marc or silicon (Si)-rich wheat straw were studied in a fixed-bed reactor under combustion, steam, or a CO2 gasification atmosphere. This study focused on the effects of atmosphere composition, feedstock, and bed material type on the thermochemical aspects of agglomeration. The agglomeration extent of grape marc with olivine as the bed material under air and steam atmospheres is significantly less than with silica sand. The presence of CO2, compared to that of O2 or steam, was found to promote the reaction between K and olivine by facilitating the production of reactive silica from olivine carbonization. The use of olivine promotes the release of K by more than 10% compared with silica. No significant differences were observed in the agglomeration extent of wheat straw in its interaction with either olivine or silica sand. Nevertheless, olivine alters the agglomeration mechanism of wheat straw to become “melting-induced” from “coating-induced” in a silica bed.
中文翻译：
在燃烧、蒸汽气化和 CO2 气化条件下橄榄石和硅砂与富钾或富硅农业残留物的相互作用
在燃烧、蒸汽或 CO 2气化气氛下，在固定床反应器中研究橄榄石或硅砂与富含钾 (K) 的葡萄渣或富含硅 (Si) 的麦秆之间的相互作用。本研究侧重于大气成分、原料和床层材料类型对团聚热化学方面的影响。以橄榄石为床料的葡萄渣在空气和蒸汽气氛下的团聚程度明显小于硅砂。与 O 2相比，CO 2的存在发现通过促进橄榄石碳化产生活性二氧化硅来促进钾和橄榄石之间的反应。与二氧化硅相比，橄榄石的使用促进钾的释放超过10%。小麦秸秆与橄榄石或硅砂相互作用时的团聚程度没有观察到显着差异。然而，橄榄石改变了小麦秸秆的团聚机制，使其从二氧化硅床中的“涂层诱导”变为“熔化诱导”。
更新日期：2021-10-06
中文翻译：
在燃烧、蒸汽气化和 CO2 气化条件下橄榄石和硅砂与富钾或富硅农业残留物的相互作用
在燃烧、蒸汽或 CO 2气化气氛下，在固定床反应器中研究橄榄石或硅砂与富含钾 (K) 的葡萄渣或富含硅 (Si) 的麦秆之间的相互作用。本研究侧重于大气成分、原料和床层材料类型对团聚热化学方面的影响。以橄榄石为床料的葡萄渣在空气和蒸汽气氛下的团聚程度明显小于硅砂。与 O 2相比，CO 2的存在发现通过促进橄榄石碳化产生活性二氧化硅来促进钾和橄榄石之间的反应。与二氧化硅相比，橄榄石的使用促进钾的释放超过10%。小麦秸秆与橄榄石或硅砂相互作用时的团聚程度没有观察到显着差异。然而，橄榄石改变了小麦秸秆的团聚机制，使其从二氧化硅床中的“涂层诱导”变为“熔化诱导”。
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