Process for producing benzene from C5-C12 hydrocarbon mixture
US10793491B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2015 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Sep 5, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for producing benzene comprising the steps of:(a) separating a source feedstream comprising C5-C12 hydrocarbons including benzene and alkylbenzenes into a first feedstream comprising a higher proportion of benzene than the source feedstream and a second feedstream comprising a lower proportion of benzene than the source feedstream and subsequently, (b) contacting the first feedstream in the presence of hydrogen with a first hydrocracking catalyst, and (c) contacting the second feedstream with hydrogen under second process conditions to produce a second product stream comprising benzene, wherein i) the second process conditions are suitable for hydrocracking and step (c) involves contacting the second feedstream in the presence of hydrogen with a second hydrocracking catalyst, ii) the second process conditions are suitable for toluene disproportionation and involve contacting the second feedstream with a toluene disproportionation catalyst or iii) the second process conditions are suitable for hydrodealkylation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.