System for recovering natural gas liquid from low pressure source at low temperatures

US12077716B2 · kind B2 · utility

Assignee

• NGLTECH SDN. BHD. · MY

Inventors

• Arul Jothy A/L Suppiah · Kuala Lumpur, MY
• Boon Lee Ooi · Kuala Lumpur, MY
• Ching-Liang Chen · Kuala Lumpur, MY
• Ebtehal Eisa Regheb Eisa Farag · Kuala Lumpur, MY
• Dhanaraj A/L Turunawarasu · Kuala Lumpur, MY

Key dates

• Filing date: Mar 13, 2020
• Grant date: Sep 3, 2024
• Expiry date: Feb 20, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10L2290/545
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A system for recovering natural gas liquid from a gas source, comprising compression means (206) for increasing the temperature and pressure of the fluid from the gas source, cooling means (230) for cooling the fluid from the compression means, a gas/gas heat exchanger (204), fluid from the gas source flowing from a first inlet to a first outlet; at least one separator (208) for receiving the fluid from the first outlet of the gas/gas heat exchanger (204) and separating liquid from the gas, the gas from the separator being directed to expansion means (206) for reducing the temperature and pressure of the gas, the aqueous part of the liquid from the separator and/or the gas from the expansion means being directed to the gas/gas heat exchanger (204) where it flows therethrough from a second inlet to a second outlet for cooling the fluid flowing between the first inlet and first outlet, wherein injection means are provided between the cooling means and the gas/gas heat exchanger for saturating the gas with a liquid agent, wherein the liquid agent comprises an evaporant and an antifreeze agent; and a recovery vessel (240) is provided downstream of the second outlet, the antifreeze agen…