Process for removing methane from a gas
US10828601B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2014 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Jun 21, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a method for removing methane from feed gas having a methane concentration of 2 mole % or less, the feed gas is optionally mixed with make-up methane or air and passed through a heat exchanger to heat the gas to an oxidation reactor inlet temperature T1. The heated stream is passed to the reactor where the methane is oxidised. A gas stream including the products of the oxidation reaction are removed with the gas stream being at a reactor outlet temperature T2 higher than the inlet temperature T1. The gas stream is then passed through the heat exchanger against the reactor stream to recover heat from the gas stream removed in the reactor and to heat the reactor stream. The outlet temperature T2 is measured and the inlet temperature T1 is controlled by adjusting the relative amount of make-up methane and/or air added to the feed gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.