Process and plant for distillation of methanol with heat recovery
US10039997B2 · kind B2 · utility
1Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2012 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Nov 9, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Process and plant for refining a stream of crude methanol (103), comprising: pre-treatment of the crude methanol in a topping stage (100), for the separation of volatile components, at a defined topping pressure (p1); distillation of methanol with at least one final distillation step of methanol at a defined distillation pressure (p4), in which said distillation pressure (p4) is greater than the topping pressure (p1), and in which a gaseous stream of distilled methanol (440), which is produced in the final distillation step, is used to supply at least part of the heat for the pre-treatment topping step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.