Aromatic hydrocarbons Union carbide process

Kureha/Union Carbide A process for cracking crude oil to olefins and aromatic hydrocarbons, using steam superheated to 2,000°C. Reaction time is only 15 to 20 milliseconds. [Pg.159]

Tetra [Tetraethylene glycol] Also called Tetia-extraction. A process for removing aromatic hydrocarbons from petroleum fractions by liquid-liquid extraction using tetraethylene glycol. Developed by Union Carbide Corporation as an improvement on the Udex process. In 1981, 30 Udex-type units had been converted to this process. Now licensed by UOP. [Pg.267]

Carom [Carbide aromatics extraction] A two-stage process for removing aromatic hydrocarbons from petroleum refining streams. In the first stage, the aromatics are removed by liquid-liquid extraction with a proprietary solvent (a mixture of polyalkylene glycols and a glycol ether) at ambient temperature. In the second stage, the aromatics are stripped from the solvent by steam distillation. Developed by Union Carbide Corporation first commercialized in 1986, and now licensed by UOP. Seven units had been licensed by 2002. [Pg.59]