Hydrocarbon gas processing including a single equipment item processing assembly
US9057558B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 22, 2011 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Jan 12, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2290/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and an apparatus are disclosed for a compact processing assembly to recover C2 (or C3) and heavier hydrocarbon components from a hydrocarbon gas stream. The gas stream is cooled and divided into first and second streams. The first stream is further cooled, expanded to lower pressure, heated, and its liquid fraction is supplied as a first top feed to an absorbing means. The second stream is expanded to lower pressure and supplied as a bottom feed to the absorbing means. A distillation vapor stream from the absorbing means is combined with the vapor fraction of the first stream, then cooled by the expanded first stream to form a condensed stream that is supplied as a second top feed to the absorbing means. A distillation liquid stream from the bottom of the absorbing means is heated in a heat and mass transfer means to strip out its volatile components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.