Reforming process for producing high-purity benzene
US5401386A · kind A · utility
45Cited by
24References
52Claims
0Family size
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Key dates
| Filing date | Jul 23, 1993 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Jul 23, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G61/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a reforming process for producing a high purity benzene product using a non-acidic zeolitic catalyst. The high purity benzene is extracted from a light fraction of reformate that has less than 500 ppm by weight toluene. Generally, a hydrocarbon feed is reformed in a reformer under reforming conditions in the presence of a non-acidic catalyst to produce a reformate. That reformate is separated into a light fraction and a heavy fraction. The extraction unit, preferably an extractive distillation unit, is then used to separate the light fraction into an aromatic extract stream and a nonaromatic raffinate stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.