{"id":476,"date":"2017-04-04T16:37:37","date_gmt":"2017-04-04T23:37:37","guid":{"rendered":"http:\/\/rccostello.com\/wordpress\/?p=476"},"modified":"2026-05-08T04:03:35","modified_gmt":"2026-05-08T11:03:35","slug":"hydrogen-sulfide-refineries","status":"publish","type":"post","link":"https:\/\/www.rccostello.com\/wordpress\/chemicals\/hydrogen-sulfide-refineries\/","title":{"rendered":"Hydrogen Sulfide Removal from Refinery Gas Streams"},"content":{"rendered":"
\"Hydrogen<\/a>
Hydrogen sulfide (H2<\/sub>S) molecule, chemical structure.  Atoms are represented as spheres with conventional color coding: hydrogen (white), sulfur (yellow).<\/figcaption><\/figure>\n

Hydrogen Sulfide (H2<\/sub>S)<\/strong><\/span><\/p>\n

Hydrogen Sulfide (H2<\/sub>S) is a colorless, flammable and extremely dangerous gas. It is found in many refinery streams such as crude oil, asphalt, residual fuel, mid distillate, gasoline and blend components. As well as natural gas, propane and LPG. It is heavier than air and can travel along the ground.<\/p>\n

Protection Against H2<\/sub>S<\/span> Exposure<\/strong><\/p>\n

In concentration as low as .0054 ppm the stream containing the gas smells like rotten eggs. In higher concentrations over 10 ppm, it desensitizes the olfactory nerves. A level of H2<\/sub>S gas at or above 100 ppm is
\nImmediately Dangerous to Life and Health (IDLH). The use of personal H2<\/sub>S monitors is mandatory as well as fixed H2<\/sub>S sensors located around the plant.<\/p>\n

Amine Units<\/strong><\/p>\n

The removal of CO2<\/sub> commonly occurs with the removal of H2<\/sub>S in the refinery streams. This is because certain amines absorb both CO2<\/sub> and H2<\/sub>S.<\/span><\/p>\n

An Amine unit typically contains a counter current absorber where the gas stream containing H2<\/sub>S and CO2<\/sub> comes in contact with the liquid amine. The rich amine solution is sent to a regenerator or desorption column where the H2<\/sub>S and CO2 <\/sub>is stripped and the amine recycled.<\/p>\n

The stripped H2<\/sub>S gas from the Amine unit will be processed in another unit called a Claus plant. In the Claus plant 1\/3 of the H2<\/sub>S reacts with with O2<\/sub> and forms SO2<\/sub>. The SO2<\/sub> reacts with the balance or 2\/3 of the H2<\/sub>S to form molten sulfur and water vapor.<\/p>\n

The key to selecting the proper treatment scheme is dependent upon the concentration not only of H2<\/sub>S,<\/a> but also of carbon dioxide and ammonia. Let COSTELLO <\/a>help you with determining the proper H2<\/sub>S treatment scheme for your mini refinery processes.<\/p>\n

Phone: 310-792-5870 Email: rcca@rccostello.com<\/strong><\/p>\n

Website: rccostello.com<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Hydrogen Sulfide (H2S) Hydrogen Sulfide (H2S) is a colorless, flammable and extremely dangerous gas. It is found in many refinery streams such as crude oil, asphalt, residual fuel, mid distillate, gasoline and blend components. As well as natural gas, propane and LPG. It is heavier than air and can travel along the ground. Protection Against […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[10],"tags":[85,24,87,14,77,86,72],"class_list":["post-476","post","type-post","status-publish","format-standard","category-chemicals","tag-amine-unit","tag-chemical-plant","tag-clause-plant","tag-engineering-solutions","tag-hydrogen-sulfide","tag-mini-refinery","tag-refinery","entry","has-post-thumbnail"],"yoast_head":"\nHydrogen Sulfide Removal from Refinery Gas Streams – COSTELLO<\/title>\n<meta name=\"description\" content=\"Understand the risks and treatment methods for Hydrogen Sulfide in refineries. 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