A new series of phosphorous-containing solid catalysts produces ultra-high yields of p-xylene by suppressing competing side reactions. Among them, phosphorous-containing BEA zeolite (P-BEA) with 12 membered-ring (12 MR) structures and phosphorous-containing self-pillared pentasil (P-SPP) zeolite nanosheets with 10 MR exhibit exceptional activities up to 97% yield of p-xylene at 99% conversion of DMF.<\/strong><\/p>\n The Diels\u2013Alder cycloaddition of 2,5-dimethylfuran (DMF) and ethylene and the subsequent dehydration of the cycloadduct intermediate is an attractive reaction pathway to produce renewable p-xylene from biomass feedstocks. Passing the Diels-Alder cycloaddition product of ethylene and DMF over this catalyst technology, a conversion rate of 97% can be achieved. The renewable p-xylene produced is an important precursor for production of PET and other related plastic materials.<\/p>\n Recent advances using Diels-Alder reactions for producing renewable aromatics (including p-xylene, toluene, benzene and other aromatic derivatives) could not exceed a 75% p-xylene yield. The phosphorous-containing solid catalysts in this technology produced p-xylene yields of up to 97%. Using ethylene (the most highly produced petrochemical) with DMF (which can be derived from fructose) may provide a more economical method of para-xylene production. Furthermore, P-containing zeolite Beta is an active, stable and selective catalyst for this reaction. It can catalyze the dehydration reaction selectively without producing alkylated and oligomerized products, unlike Al-containing zeolites and other solid phosphoric acid catalysts. This unique aspect establishes a commercially attractive process for renewable p-xylene production.<\/p>\n Phase of Development<\/strong> – Prototype<\/p>\n","protected":false},"excerpt":{"rendered":" P-Xylene from Biomass Feedstocks A new series of phosphorous-containing solid catalysts produces ultra-high yields of p-xylene by suppressing competing side reactions. Among them, phosphorous-containing BEA zeolite (P-BEA) with 12 membered-ring (12 MR) structures and phosphorous-containing self-pillared pentasil (P-SPP) zeolite nanosheets with 10 MR exhibit exceptional activities up to 97% yield of p-xylene at 99% conversion […]<\/p>\n","protected":false},"author":59,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","nova_meta_subtitle":"","footnotes":""},"categories":[5572],"tags":[6843,5842,5796],"supplier":[2640],"class_list":["post-43209","post","type-post","status-publish","format-standard","hentry","category-bio-based","tag-biochemicals","tag-biomass","tag-biotechnology","supplier-university-of-minnesota"],"_links":{"self":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/43209","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/users\/59"}],"replies":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/comments?post=43209"}],"version-history":[{"count":0,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/43209\/revisions"}],"wp:attachment":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/media?parent=43209"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/categories?post=43209"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/tags?post=43209"},{"taxonomy":"supplier","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/supplier?post=43209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Higher Yields at Potentially Lower Costs<\/h3>\n
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