TH99145B - Processes and equipment for the removal of carbon dioxide in natural gas inlet flows containing C3 +-containing ethane and hydrocarbons. - Google Patents

Abstract

The invention involves a process and equipment for producing carbon dioxide content in natural gas inlet streams containing ethane and C3 +-containing hydrocarbons to volumes that meet or close to specific requirements of Gas sold in the market and do The separation of C3 + hydrocarbons from the flowing current only. The process involves making Natural gas flows are cooled under the first set of temperature and pressure conditions. To produce a liquid flow of carbon dioxide, ethane and hydrocarbons with C3 + and gas flow with carbon concentration. Reduced dioxide The fluid flows properly. Separated from the flow, the gas and hydrocarbons containing C3 + may be separated from the flow stream only. The flux was then cooled under established second temperature and pressure conditions. For the flow of good quality natural gas and a carbon-rich second liquid. Liquid and / or solid carbon dioxide Dioxide is assembled. Good quality natural gas flow Was separated from the second liquid The process is particularly effective for the inrush current Of natural gas with carbon dioxide content> 20% and ethane content with C3 + mixed> 5% and can make carbon Dioxide reduced <5%

Claims (1)

1. Process for making carbon content Dioxide in the gas input current Nature, in which ethane and high-molecular hydrocarbons are depleted Included The steps are as follows: (a) Cooling natural gas inrush current under condition The first temperature and pressure was established to produce a liquid flow of carbon dioxide, ethane and hydrocarbons with C3 + and gas flow with reduced carbon dioxide intensity (b). Separate the flow of the liquid to