[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-31742":3,"doc-seo-31742":27},{"code":4,"msg":5,"data":6},0,"success",{"doc_id":7,"user_id":8,"nickname":9,"user_avatar":10,"doc_module":4,"category_id":11,"category_name":12,"doc_title":13,"doc_description":14,"file_id":15,"file_url":16,"file_type":17,"file_size":18,"view_count":4,"is_deleted":4,"is_public":19,"is_downloadable":19,"audit_status":19,"page_count":20,"language":21,"language_code":22,"table_of_contents":23,"faqs":24,"seo_title":13,"seo_description":14,"update_tm":25,"read_time":26},31742,1099513958762,"Logic","https://ap-avatar.wpscdn.com/avatar/1000023916a998db790?_k=1776737595927829259",8,"Research & Report","Energy Conversion and Management 113760","Energy demand, resource depletion, and severe environmental crises drive strong interest in green and renewable energy, with biomass highlighted as a promising feedstock. Biodiesel is described as a CO2-neutral alternative to petroleum, produced mainly via transesterification of triglycerides using alcohol in the presence of catalysts. When feedstock contains high free fatty acids, esterification is used to reduce acid value prior to transesterification. Catalysts are categorized into alkaline, acid, and enzymatic, and further classified as homogeneous or heterogeneous.","cbCaimFeCZJUa5dB","https://ap.wps.com/l/cbCaimFeCZJUa5dB","pdf",5408180,1,14,"English","en","# Introduction\n## Energy demand and renewable interest\n## Biomass and biodiesel relevance\n## Catalyst roles and biodiesel reaction pathways\n## Catalyst categories: alkaline, acid, enzymatic","[{\"question\":\"Why is biodiesel considered important for energy security?\",\"answer\":\"Biodiesel is presented as a petroleum substitute that supports energy security, driven by high external petroleum dependence and the need for renewable alternatives.\"},{\"question\":\"How are biodiesel feedstocks converted into fatty acid alkyl esters?\",\"answer\":\"Biodiesel is produced by transesterification of triglyceride feedstock with alcohol using a catalyst, yielding fatty acid alkyl esters.\"},{\"question\":\"Why is esterification needed before transesterification for some feedstocks?\",\"answer\":\"When feedstock oil has high free fatty acid content, esterification reacts free fatty acids with alcohol to form fatty acid alkyl esters and water, reducing acid value to enable effective subsequent transesterification.\"}]",1780088434,35,{"code":4,"msg":28,"data":29},"ok",{"site_id":30,"language":22,"slug":31,"title":13,"keywords":32,"description":14,"schema_data":33,"social_meta":84,"head_meta":86,"extra_data":88,"updated_unix":25},105,"energy-conversion-and-management-113760","",{"@graph":34,"@context":83},[35,52,66],{"@type":36,"itemListElement":37},"BreadcrumbList",[38,42,46,49],{"item":39,"name":40,"@type":41,"position":19},"https://docshare.wps.com","Home","ListItem",{"item":43,"name":44,"@type":41,"position":45},"https://docshare.wps.com/document/","Document",2,{"item":47,"name":12,"@type":41,"position":48},"https://docshare.wps.com/document/research-report/",3,{"item":50,"name":13,"@type":41,"position":51},"https://docshare.wps.com/document/energy-conversion-and-management-113760/31742/",4,{"url":50,"name":13,"@type":53,"author":54,"headline":13,"publisher":56,"fileFormat":59,"description":14,"dateModified":60,"datePublished":60,"encodingFormat":59,"isAccessibleForFree":61,"interactionStatistic":62},"DigitalDocument",{"name":9,"@type":55},"Person",{"url":39,"name":57,"@type":58},"DocShare","Organization","application/pdf","2026-05-29",true,{"@type":63,"interactionType":64,"userInteractionCount":4},"InteractionCounter",{"@type":65},"ViewAction",{"@type":67,"mainEntity":68},"FAQPage",[69,75,79],{"name":70,"@type":71,"acceptedAnswer":72},"Why is biodiesel considered important for energy security?","Question",{"text":73,"@type":74},"Biodiesel is presented as a petroleum substitute that supports energy security, driven by high external petroleum dependence and the need for renewable alternatives.","Answer",{"name":76,"@type":71,"acceptedAnswer":77},"How are biodiesel feedstocks converted into fatty acid alkyl esters?",{"text":78,"@type":74},"Biodiesel is produced by transesterification of triglyceride feedstock with alcohol using a catalyst, yielding fatty acid alkyl esters.",{"name":80,"@type":71,"acceptedAnswer":81},"Why is esterification needed before transesterification for some feedstocks?",{"text":82,"@type":74},"When feedstock oil has high free fatty acid content, esterification reacts free fatty acids with alcohol to form fatty acid alkyl esters and water, reducing acid value to enable effective subsequent transesterification.","https://schema.org",{"og:url":50,"og:type":85,"og:title":13,"og:site_name":57,"og:description":14},"article",{"robots":87,"canonical":50},"index,follow",{"doc_id":7,"site_id":30}]