Device for dewatering and dealkylating methane-rich gas

A methane-enriching and dehydrocarbon technology, which is applied in gas fuel, petroleum industry, dispersed particle separation, etc., can solve the problems of unstable operation of coolers, easy freezing and blocking of coolers, increase operating load of coolers, etc., so as to reduce energy consumption. The effect of reducing energy consumption, saving energy consumption, and stabilizing operating load
CN104368221AActive Publication Date: 2015-02-25SICHUAN HENGRI GAS ENG CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN HENGRI GAS ENG CO LTD
Publication Date
2015-02-25

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Abstract

The invention provides a device for dewatering and dealkylating methane-rich gas. The device comprises a first gas feeding pipeline, a gas producing pipeline, a second gas feeding pipeline, a circulating-gas pipeline, a cooling-gas pipeline and a heat exchanger (E), wherein a first gas inlet of the heat exchanger is communicated with the cooling-gas pipeline. The device also comprises a heater (F), a heating gas pipeline, a desorbing gas pipeline, a cooler, a separator, four adsorbing towers and valves. The device provided by the invention comprises three independent gas channels, the four adsorbing towers form three gas channels and work simultaneously by controlling different valves, so that the heat is fully utilized and the energy consumption is reduced, simultaneously the operating load of the heater and the cooler is stabilized, and the operation of the whole device is stable. Therefore, the four adsorbing towers carry out different treating processes, and the heat is repeatedly utilized, so that the energy consumption is greatly saved.
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Description

technical field

[0001] The invention belongs to the technical field of natural gas processing, and in particular relates to a device for dehydration and dehydrocarbonation of methane-rich gas. Background technique

[0002] The production of liquefied natural gas (LNG) has strict requirements for the pretreatment of raw gas, such as requiring water content less than 1ppm, hydrocarbon content less than 50ppm, etc., especially for natural gas with hydrocarbon content of 50-400ppm, due to the low hydrocarbon content, It is very easy to freeze and block the cooler during pretreatment, which increases the operating load of the cooler and leads to unstable operation of the cooler. Contents of the invention

[0003] In view of this, the purpose of the present invention is to provide a device for dehydration and dehydrocarbonation of methane-enriched gas. The device provided by the present invention has simple structure, stable operation and low energy consumption.

[0004] The in...

Claims

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