Heavy hydrocarbon removal system for lean natural gas liquefaction
US11668522B2 · kind B2 · utility
0Cited by
8References
12Claims
0Family size
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Key dates
| Filing date | Jul 21, 2016 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Jun 15, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2270/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system and method for integrated heavy hydrocarbon removal in a liquefaction system having a lean natural gas source. An economizer located between a main cryogenic heat exchanger and a reflux drum is provided to cool an overhead vapor stream against a partially condensed stream. In addition, pressure of the natural gas feed stream is maintained into a scrub column. A pressure drop is provided by a valve located between the economizer and the reflux drum on a partially condensed stream withdrawn from the cold end of the warm section of the main cryogenic heat exchanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.