{"id":92246,"date":"2023-10-31T08:52:00","date_gmt":"2023-10-31T05:22:00","guid":{"rendered":"https:\/\/polymervapooshesh.ir\/?p=92246"},"modified":"2023-11-07T11:10:58","modified_gmt":"2023-11-07T07:40:58","slug":"life-cycle-analysis-shows-pyrolysis-can-reduce-carbon-footprint-of-cracking-operations","status":"publish","type":"post","link":"https:\/\/polymervapooshesh.ir\/en\/life-cycle-analysis-shows-pyrolysis-can-reduce-carbon-footprint-of-cracking-operations\/","title":{"rendered":"Life Cycle Analysis Shows Pyrolysis Can Reduce Carbon Footprint of Cracking Operations"},"content":{"rendered":"<p dir=\"ltr\"><em><strong>Iranpolymer\/Baspar\u00a0 <\/strong><\/em>A study published in\u00a0The Journal of Cleaner Production, and supported by funding from the\u00a0American Chemistry Council, describes greenhouse gas (GHG) benefits of substituting pyrolysis oil from post-use plastic for naphtha and fossil fuel gases in steam cracking operations.<br \/>\nThe study considers two types of facilities, pioneer facilities with a capacity of less than 50,000 tons\/year and \u201cNth\u201d facilities, with capacity greater than 50,000 tons\/year. The scaling factor is significant, the use of pyrolysis oil in pioneer facilities increases GHG emissions, while GHG emissions from Nth facilities are lower than that of conventional operations.<br \/>\nThe study also considers two substitution ratios, 5% and 20%. When substituting only 5% pyrolysis oil for naphtha and gases, the elimination of chlorides and other contaminants by hydrotreatment is not necessary. Hydrotreatment contributes significantly to the GHG emissions of using pyrolysis oil. At a substitution ratio of 20%, hydrotreatment is necessary to protect equipment, bringing down the GHG benefit on a per kilogram\u00a0basis.<br \/>\nFrom the recycler\u2019s\u00a0perspective, the substitution of pyrolysis oil provides a 23% reduction for HDPE production and an 18% reduction for LDPE production. However, these numbers set aside the 95% of production still being carried out by traditional means in this scenario. The producer still needs to source the other 95% (from fossil fuels) in order to make the 5% recycled material, so from the cracker\u2019s perspective the benefit is around 1%.<br \/>\nExpanding the system boundaries to include end-of-life disposal increases the GHG benefit further, especially when compared against incineration.<br \/>\nThe authors identified the availability of operational data on steam cracking and hydrotreatment processes as a limitation of the study. Detailed information is considered proprietary, and values were based on available literature and discussions with industry partners.<\/p>\n<p dir=\"ltr\"><strong><em>ptonline<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Iranpolymer\/Baspar\u00a0 A study published in\u00a0The Journal of Cleaner Production, and supported by funding from the\u00a0American Chemistry Council, describes greenhouse gas (GHG) benefits of substituting pyrolysis oil from post-use plastic for naphtha and fossil fuel gases in steam cracking operations. The study considers two types of facilities, pioneer facilities with a capacity of less than 50,000 &hellip;<\/p>\n","protected":false},"author":5,"featured_media":92247,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[69],"tags":[47329,50847,50846,49349,1552,48720,2185],"class_list":["post-92246","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-en","tag-carbon-footprint","tag-fossil-fuel-gases","tag-greenhouse-gas","tag-hdpe-2","tag-ldpe","tag-pyrolysis-oil","tag-recycled-material"],"_links":{"self":[{"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/posts\/92246","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/comments?post=92246"}],"version-history":[{"count":0,"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/posts\/92246\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/media\/92247"}],"wp:attachment":[{"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/media?parent=92246"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/categories?post=92246"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/tags?post=92246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}