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As in the past oil refinery equipment with high sulfur content is not much, so oil refinery equipment against sulfur corrosion requirements are not high . Now processed sour crude , apparently necessary to improve the crude oil refinery plant corrosion standards. Edited by the China Petrochemical Corporation , the former State Economic and Trade Commission approval , sour crude processing device is mainly focused equipment design selection guide is about the design, manufacturers must follow national industry standards. This standard atmospheric tower , vacuum tower , flash tower , electric desalting cans and other refinery equipment design selection is made explicit , respectively, required use of carbon steel, aluminized steel and duplex steel, these materials also put forward specific requirements, such as aluminized steel aluminized layer must be dense, uniform , as pressure parts and beam tubes , the response to its manufacturing , welding , inspection and strict control , to achieve the required mechanical performance requirements . Equipment housings made of carbon steel should be used in pressure vessel steel . Carbon steel in wet hydrogen sulfide environment, in addition to sulfide stress corrosion cracking is generated , it will also produce hydrogen drum kits, hydrogen induced cracking phenomena , in order to prevent these crude soybean oil refinery equipment damage occurs , material selection is necessary to use resistance to hydrogen induced cracking of carbon steel, which is characterized by the steel of sulfur and phosphorus content is low. Refining equipment related steel or pipe must be corrosion resistance to hydrogen induced cracking Study .
Crude soybean oil refinery equipment from this perspective, that is, to the design and selection of an inventory of relevant industry standards contrast , if the selection does not match the place should be corrected . The device has already run this aspect of the problem , we must analyze the possible consequences , taking care measures to develop updated plans to actively promote the refining equipment upgrades and material upgrades