| 单词 | steam cracking |
| 释义 | > as lemmassteam cracking steam cracking n. the thermal cracking of petroleum using steam as an inert diluent which reduces polymerization and increases the yield of olefins. ΘΚΠ society > occupation and work > industry > working with specific materials > oil refining or separating processes > [noun] re-refining1864 cracking1868 stripping1922 sweetening1924 Platforming1949 Powerforming1956 steam cracking1959 1959 Petroleum Times 25 Sept. 602/1 No. 3 olefine plant is..based on the steam cracking process. 1962 Murphree & Ciprios in Mod. Petroleum Technol. (ed. 3) ix. 318 Although the primary purpose of steam cracking is the production of light hydrocarbons, the process also produces material in the gasoline boiling range. 1977 Shell in Base Chemicals (Shell Internat. Petroleum Co.) 4 Benzene, toluene and mixed xylenes coming from oil are extracted in special plants from reformate and pyrolysis gasoline, formed when lower olefins are manufactured by the steam-cracking of liquid feedstocks. < as lemmas |
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