{"id":2203,"date":"2025-01-08T16:55:55","date_gmt":"2025-01-08T16:55:55","guid":{"rendered":"https:\/\/30260.us6.myftpupload.com\/?page_id=2203"},"modified":"2025-01-27T20:18:07","modified_gmt":"2025-01-27T20:18:07","slug":"technology","status":"publish","type":"page","link":"https:\/\/30260.us6.myftpupload.com\/index.php\/technology\/","title":{"rendered":"Current Technology"},"content":{"rendered":"

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Advanced Recycling of Waste Plastics<\/h3><\/div><\/div>
<\/div>[\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=””]Today, waste plastic is first pyrolyzed to obtain a pyrolysis oil (pyoil) and gas; and that pyoil is then processed in a steam cracker or fluid catalytic cracker (FCC) to produce ethylene, propylene and a wide variety of other products which can then be used to form polymers. \u00a0Since the inlet to the cracking coils in this process is typically 650-750 \u00b0C, pyoil feed to steam crackers needs to be light enough to vaporize and not prematurely coke the tubes.\u00a0 Unfortunately, much of the pyoil produced by current processes has a final boiling point of greater than 700 \u00b0C and therefore the amount of this pyoil that can be blended into cracker feed is limited.<\/p>\n

Trans Ionics\u2019 process, TransPyr<\/strong>, produces a pyoil than has a final boiling point 250 \u2013 350 \u00b0C lower than that produced by other processes and requires only light saturation of olefins to produce a pure paraffinic feed.[\/vc_column_text]

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Case Study<\/h3><\/div><\/div>
<\/div>[\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=””]To compare TransPyr<\/strong> with conventional pyrolysis, a base case thermal run was carried out using a pure HDPE feed (Figure 1) in a 300 cc stirred autoclave at 450 \u00b0C and produced the pyoil product shown in Figure 2.<\/p>\n

This liquid represents the entire pyoil product without distillation or hydrotreating and less than 1 wt% coke was produced.<\/p>\n

A second run was carried out with the same HDPE feed under TransPyr<\/strong> configuration and conditions at 475 \u00b0C and produced the pyroil shown in Figure 3. Again this liquid represents the entire pyoil product and has not been distilled or hydrotreated. Coke yield was less than 0.7 wt% on feed.<\/p>\n

Both liquids were analyzed by ASTM D2887. The pyoil from the thermal run showed a final boiling point (FBP) of 655 \u00b0C while the TransPyr pyoil showed a FBP of only 390 \u00b0C \u2013 a reduction of 265 \u00b0C. As a result of the lower boiling range, the TransPyr<\/strong> pyoil is expected to behave better when blended into naphtha to a steam cracker.[\/vc_column_text]

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[vc_row][vc_column][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=””]Today, waste plastic is first pyrolyzed to obtain a pyrolysis oil (pyoil) and gas; and that pyoil is then processed in a steam cracker or fluid catalytic cracker (FCC) to produce ethylene, propylene and a wide variety of other products which can then be used to form polymers. \u00a0Since the inlet to the cracking…<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"class_list":["post-2203","page","type-page","status-publish","hentry","description-off"],"_links":{"self":[{"href":"https:\/\/30260.us6.myftpupload.com\/index.php\/wp-json\/wp\/v2\/pages\/2203","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/30260.us6.myftpupload.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/30260.us6.myftpupload.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/30260.us6.myftpupload.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/30260.us6.myftpupload.com\/index.php\/wp-json\/wp\/v2\/comments?post=2203"}],"version-history":[{"count":5,"href":"https:\/\/30260.us6.myftpupload.com\/index.php\/wp-json\/wp\/v2\/pages\/2203\/revisions"}],"predecessor-version":[{"id":2222,"href":"https:\/\/30260.us6.myftpupload.com\/index.php\/wp-json\/wp\/v2\/pages\/2203\/revisions\/2222"}],"wp:attachment":[{"href":"https:\/\/30260.us6.myftpupload.com\/index.php\/wp-json\/wp\/v2\/media?parent=2203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}