INSTALLATION FOR THE PREPARATION OF HYDROCARBON GAS Russian patent published in 2021 - IPC B01D53/02 B01D53/26 

FIELD: gas industry.

SUBSTANCE: invention relates to the field of the gas industry, namely to the technique and technology for the preparation of natural gas, and can be used in gas, oil and other industries in adsorption plants for the preparation of hydrocarbon gases. The installation includes a throttle, an inlet separator, adsorbers, the top of which is connected to a gas supply line, a cooling gas supply line and a regeneration waste gas discharge line, and the bottom is connected to a prepared gas discharge line, a cooling gas discharge line and a regeneration gas supply line, a filter device, furnace, high-pressure separator, in which the prepared gas outlet line is connected to the filter device, the cooling gas outlet line is connected to the furnace, the regeneration waste gas outlet line is connected to a high-pressure separator, and the cooling gas supply line is connected to the feed gas supply line before the throttle, the inlet separator is installed after the throttle, the gas outlet from the inlet separator is connected to the first recuperative heat exchanger, the gas outlet from which is connected to the adsorbers, the cooling gas outlet line is connected to the furnace through a second recuperative heat exchanger, the regeneration waste gas outlet line is connected in series with the second and first recuperative heat exchangers and a high pressure separator, and the line for removing the regeneration waste gas from the high-pressure separator is connected to the feed gas supply line before the inlet separator, while the cooling gas supply line is connected to the filter separator, the outlet of which is connected to the top of the adsorbers, the high-pressure separator is connected in series with the medium and low separators pressure, and the degassing gas outlet line from the medium-pressure separator is connected to the fuel gas line, and the low-pressure degassing gas outlet line from the low-pressure separator is connected to the flare line, and a propane cooler is installed on the regeneration waste gas outlet line between the first recuperative heat exchanger and the high-pressure separator, and filters are installed on the regeneration waste gas outlet line and on the cooling gas outlet line upstream of the second recuperative heat exchanger, while the degassing gas outlet line from the medium pressure separator through the control valve is connected to an additionally installed third recuperative heat exchanger, which is connected to an additionally installed low-temperature fuel gas separator through a cooled degassing gas outlet line from the medium pressure separator, in which the hydrocarbon condensate drain line through the throttle is connected to the hydrocarbon condensate drain line from the medium pressure separator to the low pressure separator, and the fuel gas outlet line is connected through the control valve to the fuel network for own needs, and the prepared gas line is also connected through the throttle to the outlet line part of the prepared gas, which is connected in series with an additionally installed third recuperative heat exchanger and then through a cooled line for removing a part of the prepared gas with an additionally installed low-temperature fuel gas separator.

EFFECT: ensuring the possibility of resource saving of the installation due to the production of an additional amount of stable hydrocarbon condensate and fuel gas.

1 cl, 1 dwg