{"id":1045,"date":"2019-01-22T22:14:18","date_gmt":"2019-01-22T22:14:18","guid":{"rendered":"http:\/\/johnbrear-plantintegrity.com\/?page_id=1045"},"modified":"2019-01-22T22:18:54","modified_gmt":"2019-01-22T22:18:54","slug":"debottlenecking-options-for-a-cdu-furnace","status":"publish","type":"page","link":"https:\/\/johnbrear-plantintegrity.com\/?page_id=1045","title":{"rendered":"Debottlenecking options for a CDU furnace"},"content":{"rendered":"<p><strong>Item:<\/strong><\/p>\r\n<ul>\r\n    <li>A crude heater, designed for 30,000 barrels per day, of cabin type with 5Cr radiant and shock-row tubes and a carbon steel convection section<\/li>\r\n<\/ul>\r\n<p><strong>Objective:<\/strong><\/p>\r\n<ul>\r\n    <li>To define upgrade options for the furnace so as to allow the capacity of the crude distillation unit to be increased to around 40,000 bbl\/day, as part of a refinery debottlenecking project<\/li>\r\n<\/ul>\r\n<p><strong>Approach:<\/strong><\/p>\r\n<ul>\r\n    <li>Definition of basic heater parameters by performing baseline simulations of design and of current operating conditions<\/li>\r\n    <li>Identification of likely limitations to operation at a higher process throughput<\/li>\r\n    <li>Proposition of upgrade options to overcome these limitations, with an analysis of the technical advantages and disadvantages of each<\/li>\r\n    <li>Level 1 life assessment of existing furnace tubes, under conditions pertinent to the favoured upgrade option<\/li>\r\n<\/ul>\r\n<p><strong>Results:<\/strong><\/p>\r\n<ul>\r\n    <li>Six options were identified:<br \/>\r\n    - operate the furnace unmodified<br \/>\r\n    - extend the stack to increase draught<br \/>\r\n    - install a forced draught system<br \/>\r\n    - install an air preheat system with coupled I\/D-F\/D fans<br \/>\r\n    - install a process preheater furnace<br \/>\r\n    - install a twin furnace in parallel<\/li>\r\n    <li>Operation with the furnace unmodified would be the most economic option; installation of a process preheater would be the favoured upgrade<\/li>\r\n    <li>Life assessment indicated that tube replacement would be needed in around 5 years if the furnace were to be operated unmodified<\/li>\r\n    <li>Careful control of operating conditions would be required if the furnace were to be operated unmodified<\/li>\r\n<\/ul>\r\n<p><strong>Benefits:<\/strong><\/p>\r\n<ul>\r\n    <li>Most cost-effective option defined, and associated advantages and disadvantages identified<\/li>\r\n    <li>Optimal balance between improved performance, component life and capital spend attained<\/li>\r\n    <li>Operational, inspection and maintenance requirements identified for successful achievement of the debottlenecking objective<\/li>\r\n<\/ul>\r\n","protected":false},"excerpt":{"rendered":"<p>Item: A crude heater, designed for 30,000 barrels per day, of cabin type with 5Cr radiant and shock-row tubes and a carbon steel convection section Objective: To define upgrade options for the furnace so as to allow the capacity of the crude distillation unit to be increased to around 40,000 bbl\/day, as part of a &hellip; <a href=\"https:\/\/johnbrear-plantintegrity.com\/?page_id=1045\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Debottlenecking options for a CDU furnace<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":155,"menu_order":4,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1045","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages\/1045","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1045"}],"version-history":[{"count":2,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages\/1045\/revisions"}],"predecessor-version":[{"id":1048,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages\/1045\/revisions\/1048"}],"up":[{"embeddable":true,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages\/155"}],"wp:attachment":[{"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1045"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}