ADSORPTION PLANT FOR THE PREPARATION AND TRANSPORTATION OF HYDROCARBON GAS Russian patent published in 2022 - IPC B01D53/00 

FIELD: gas industry.

SUBSTANCE: invention relates to the gas industry. The adsorption plant for the preparation and transportation of hydrocarbon gas is described, it includes a control valve, an inlet separator, adsorbers, while the source gas supply line through the control valve is connected in series with the inlet separator, the first regenerative heat exchanger and with the top of the adsorbers, the cooling gas supply line is connected to the source gas supply line in front of the control valve, and also connected to the top the adsorber through the filter separator, the line of removal of saturated regeneration gas from the top of the adsorbers is connected in series with the filter device, the second regenerative heat exchanger, the first regenerative heat exchanger, a propane refrigerator and a high-pressure separator, the cooling gas outlet line from the bottom of the adsorbers is connected in series to the filter device, the second regenerative heat exchanger and the furnace, whose outlet through the regeneration gas supply line is connected to the bottom of the adsorbers, the prepared gas outlet line from the bottom of the adsorbers is connected to the filter device, the recovery exhaust gas discharge line from the high-pressure separator is connected to the source gas supply line in front of the inlet separator after the control valve, the high-pressure separator is connected in series with the medium and low-pressure separators, while the degassing gas discharge line from the medium-pressure separator is connected to the fuel gas line, and the low-pressure gas discharge line from the low-pressure separator is connected with a flare line, while the gas condensate discharge line from the high-pressure separator through the throttle is connected to the medium-pressure separator, in which the gas condensate discharge line through the throttle is connected to a low-pressure separator, the outlet of which is connected to the stable condensate discharge line, a make-up tank, the outlet of which is connected through the methanol supply line to the saturated gas regeneration line between the first regenerative heat exchanger and the propane refrigerator, and a methanol regeneration unit, the inlet of which is connected to the water-methanol mixture discharge line from the high pressure separator, and the outlet is connected through a line of supply of regenerated methanol with a line of discharge of saturated regeneration gas between the first regenerative heat exchanger and the propane refrigerator, a process compressor, the inlet of which is connected through a line of discharge of low-pressure degassing gas with a low-pressure separator, and the outlet is combined with a line of discharge of gas condensate from a high-pressure separator into a common stream, which is connected to a medium pressure separator, and an intermediate heater, the inlet of which is connected to the gas condensate discharge line from the medium pressure separator, and the outlet is connected to the gas condensate inlet line to the low-pressure separator, the installation contains a buffer tank, the inlet of which is connected to the discharge line of low-pressure degassing gas from the low-pressure separator, and the outlet is connected through the supply line of low-pressure degassing gas to the process compressor from the buffer tank to the input of the process compressor, the compression unit whose input is connected to by the supply line of low-pressure degassing discharge gas to the compression unit from the buffer tank, and the outlet is connected through a line of discharge of low-pressure degassing gas from the compression unit to the feed line of the source gas.

EFFECT: resource saving of the installation due to additional utilization of low-pressure gas by the adsorption method and, as a result, an increase in the output of the prepared gas, pressure stabilization on the discharge line of the low-pressure discharge gas of degassing from the low-pressure separator.

1 cl, 1 dwg