Process for acid gas treatment and power generation
US10213730B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2017 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Aug 22, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Systems and processes for treating acid gas from a sour gas stream are provided. A chemical looping combustion (CLC) process is provided that uses CaCO3 to capture sulfur from the acid gas and produce CaSO4. An acid gas treatment unit may receive an acid gas from an acid gas removal unit and produce the CaSO4 and various gas and air streams for use in heat exchangers for steam production. The acid gas treatment unit may include a fuel reactor, an oxidizer reactor, and a calciner reactor. Another acid gas treatment unit may include a fuel reactor that includes the calciner function and an oxidizer reactor. A selective membrane module may be disposed between the sour gas stream and an acid gas removal unit to produce a H2S and CO2 permeate that is mixed with the acid gas stream provided to the acid gas treatment unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.