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Compression and cooling integrated device and method for cracked gas in process of preparing acetylene from natural gas

A cracking gas compression and integrated device technology, which is applied in the direction of pump devices, water shower coolers, sustainable manufacturing/processing, etc., can solve the problems of large equipment footprint, high investment cost, and increased viscosity, so as to avoid excessive Explosion under high temperature and overpressure, less investment in equipment, and small footprint

Pending Publication Date: 2022-05-13
王金福
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods all use two compressors and two cooling towers to realize the compression and cooling of the cracked gas, which has the disadvantages of long process, large equipment footprint, high investment cost, etc., and the long pipeline between the compressor and the cooling tower is easy Lead to polymerization of acetylene, higher acetylene and polymers, etc. The formation of high polymers will affect the properties of cooling water, increase its viscosity or form solid slag precipitation, and block pumps, pipelines and other facilities

Method used

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  • Compression and cooling integrated device and method for cracked gas in process of preparing acetylene from natural gas

Examples

Experimental program
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Effect test

Embodiment 1

[0032]An integrated device for cracking gas compression and cooling in the natural gas to acetylene process, which includes a first cooling tower 2-1 and a second cooling tower 2-2; the second cooling tower 2-2 is arranged on the first cooling tower 2-1 Above the top of the tower, preferably the second cooling tower 2-2 and the first cooling tower 2-1 adopt the same section of tower body, and isolation is set in the height direction. In the two-stage tower body structure formed, the first cooling tower 2-1 is located at Below the second cooling tower 2-2. The first gas inlet 5-1 that is arranged on the side wall of the first cooling tower 2-1 is connected with the first compressor 1-1, to compress the cracked gas entering the first cooling tower 2-1, and the first gas inlet 5-1 1 is preferably arranged at the lower part of the side wall of the first cooling tower 2-1; the circulating water outlet 6-1 at the bottom of the first cooling tower 2-1 is connected to the The circula...

Embodiment 2

[0035] An integrated cracking gas compression and cooling process in the natural gas to acetylene process, which uses the cracked gas compression and cooling integrated device in the natural gas to acetylene process in Example 1, comprising the following steps: the cracked gas is compressed by the first compressor 1-1 Enter the first gas in the lower part of the first cooling tower 2-1 in the two-stage cooling tower 2 (in order to isolate the middle part of the tower body of the same stage, forming upper and lower parts, the lower part is the first cooling tower, and the upper part is the second cooling tower). The inlet 5-1, in the first cooling tower 2-1, flows in the opposite direction with the cooling circulating water therein, and contacts and exchanges heat; the second compressor 1-2 exits the first gas from the upper part of the first cooling tower 2-1 5-2 pumping air, sending the cracked gas into the second gas inlet 5-3 in the second cooling tower 2-1 after being compr...

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Abstract

The invention belongs to the technical field of preparation of acetylene from natural gas, and provides a cracking gas compressing and cooling integrated device in a process of preparing acetylene from natural gas, which comprises a first cooling tower and a second cooling tower, the second cooling tower is arranged above the top of the first cooling tower; a first gas inlet formed in the side wall of the first cooling tower is connected with a first compressor so as to compress cracked gas entering the first cooling tower; a circulating water outlet in the bottom of the first cooling tower is connected to a circulating water inlet in the upper part of the first cooling tower sequentially through a first circulating pump and a first heat exchanger; a first gas outlet formed in the side wall of the first cooling tower is connected with a second gas inlet formed in the side wall of the second cooling tower through a second compressor; a circulating water outlet in the bottom of the second cooling tower is connected to a circulating water inlet in the upper part of the second cooling tower sequentially through a second circulating pump and a second heat exchanger; a pyrolysis gas outlet is formed in the top of the second cooling tower; a condensate outlet is formed in the bottom of the first cooling tower.

Description

technical field [0001] The present invention generally relates to the technical field of producing acetylene from natural gas, in particular to an integrated device and method for cracking gas compression and cooling in the process of producing acetylene from natural gas. Background technique [0002] In the process of partial oxidative cracking of natural gas to produce acetylene, the cracked gas generally needs to be compressed and pressurized to above 1.0MPa, and then enter the enrichment section. In the pyrolysis gas, the volume content of acetylene on a dry basis is about 10%, the water vapor is in a saturated state, and the rest is mainly synthesis gas (CO+H 2 ). Acetylene is prone to explosion when the pressure is greater than 0.14MPa (absolute pressure) or the temperature is higher than 100°C. This characteristic makes the temperature and pressure of the cracked gas compression process should be controlled as much as possible below 100°C and 1.4MPa. Once compressed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28C1/00F28C1/14F04B41/06C07C11/24
CPCF28C1/00F28C1/14F04B41/06C07C11/24F28C2001/006Y02P20/10
Inventor 王金福王泽宁
Owner 王金福