| 单词 | θ209299 |
| 释义 | society > occupation and work > industry > working with specific materials > oil refining or separating processes > [noun] (7) re-refining1864 cracking1868 stripping1922 In technical senses. sweetening1924 The action of sweeten, v. Oil Industry. The process of freeing petroleum products of sulphur or sulphur compounds. Platforming1949 A proprietary name for: a process for reforming petroleum using a platinum catalyst. Frequently attributive. Powerforming1956 A process for reforming petroleum using a platinum catalyst. Cf. re-forming, n.2 2. steam cracking1959 the thermal cracking of petroleum using steam as an inert diluent which reduces polymerization and increases the yield of olefins. |
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