US 2014/0360226 A1 · MODULE FOR TREATMENT OF CARBON DIOXIDE AND TREATMENT METHOD THEREOF

Abstract

Liquid carbon dioxide separated from sour gas is expanded by throttling decompression and is gas-liquid separated at a low temperature so as to be supplied for shipping or the improvement of petroleum recovery. Methane generated from a stranded gas well is allowed to pass as a coolant through liquid carbon dioxide separated and discharged from sour gas generated from the stranded gas well so as to cool liquid carbon dioxide. Disclosed is a module for treating carbon dioxide, and a treatment method thereof for supplying liquid carbon dioxide at a proper temperature and state conditions when there is a need for liquid carbon dioxide of very low temperature for the storage or collection of carbon dioxide, the improvement of petroleum recovery, or the like by cooling carbon dioxide using a material separated from sour gas of a stranded gas well as a coolant.

Claims19

Dependent claims

An additional cooling module for liquefied carbon dioxide, comprising:

a separation unit formed at a middle thereof with a controlled freezing zone (CFZ) and discharging methane upwards while discharging carbon dioxide contained in sour gas generated from a stranded gas well downwards;
a gas-liquid separator connected to the separation unit and separating carbon dioxide into gas and liquid;
and
an expansion valve disposed between the separation unit and the gas-liquid separator and expanding liquid carbon dioxide discharged from the separation unit by throttling decompression.

1 more element

Dependencies are inferred from the claim text.

Module for treatment of carbon dioxide and treatment method thereof

Life of this patent

Module for treatment of carbon dioxide and treatment method thereof

Life of this patent

Abstract

Claims19