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Process for manufacturing methane

A preparation process, methane technology, applied in the field of methane preparation process, to achieve the effect of improving comprehensive utilization of energy, reducing resource consumption, and improving energy-saving measures

Inactive Publication Date: 2014-07-16
GUIZHOU XINGHUA CHEM
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In the prior art, there is no good recovery treatment for the membrane hydrogen extraction tail gas, especially for the methane recovery operation in the membrane hydrogen extraction tail gas.

Method used

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  • Process for manufacturing methane

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Embodiment Construction

[0015] In order to make the object, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0016] The invention provides a methane preparation process, including raw gas purification operation, refrigeration compression operation, liquefaction operation, LNG storage operation, and release operation; wherein,

[0017] Raw material gas purification operation is used to purify the raw material gas and transport the purified gas to the liquefaction unit for liquefaction operation;

[0018] Refrigeration and compression operation, which is used to carry out pressurization and cooling operation of nitrogen, and transport the low-temperature gas after expansion and refrigeration to the liquefaction unit;

[0019] The...

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Abstract

The invention discloses a process for manufacturing methane. The process includes virgin gas purification operation, refrigerating compression operation, liquefaction operation and LNG (liquefied natural gas) storage operation. The virgin gas purification operation is used for carrying out purification operation on virgin gas, and purified gas is delivered to a liquefaction unit to be subjected to liquefaction operation; the refrigerating compression operation is used for carrying out pressurization and cooling operation on nitrogen, and expanded and refrigerated low-temperature gas is delivered to the liquefaction unit; the liquefaction operation is used for receiving the virgin gas from the purification operation and the low-temperature gas from the compression operation; the virgin gas is cooled by the low-temperature gas under the control and then is subjected to separation operation, and separated LNG is delivered to be subjected to the storage operation. The process has the advantages that by the aid of a method for recycling and manufacturing the liquefied natural gas in tail gas, energy conservation measures of enterprises can be effectively upgraded, resource consumption of the enterprises can be reduced, and an effect of comprehensively utilizing energy of the enterprises can be enhanced.

Description

technical field [0001] The invention relates to the technical field of recovery of liquefied natural gas and methane, in particular to a methane preparation process. Background technique [0002] At present, with the continuous improvement of people's material living standards, the use of energy is also different from previous years. Therefore, many regions are now vigorously advocating energy conservation and consumption reduction, reducing energy loss, and increasing energy utilization efficiency. It can better benefit the future generations of mankind, and it also actively responds to the country's guiding ideology on sustainable development. Atmospheric methane concentrations have more than doubled over the years, mainly due to human activity, surveys show. Methane is 23 times more capable of preventing heat from escaping from the atmosphere than carbon dioxide. Therefore, reducing methane emissions and recovering methane in time is a good way to solve the problem of gl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25J1/02C10L3/10
Inventor 翟道兵田维略陈继峰刘宽勇余贵连王新娟
Owner GUIZHOU XINGHUA CHEM
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