Processes for separating para-xylene from toluene
US10626067B1 · kind B1 · utility
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16Claims
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Key dates
| Filing date | May 10, 2019 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | May 10, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Processes and apparatuses for para-xylene separation. A stream of para-xylene is separated from a toluene stream in a fractionation column. An overhead stream of the fractionation column is compressed and then passed to a heat recovery zone to transfer heat from the overhead stream to another process stream in, for example, a heat exchanger. The fractionation column may be separating an effluent from a toluene methylation reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.