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Energy-saving process for acetylenic ketone reaction device

A reaction device and acetylenic ketone technology, applied in the chemical industry, the preparation of organic compounds, sustainable manufacturing/processing, etc., to achieve the effects of increasing intake pressure, reducing power consumption, and large flow

Pending Publication Date: 2021-08-13
四川丰雍科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this process adopts pressurized rectification to have a certain energy-saving effect, most of the ammonia gas still enters the mixed gas cabinet in a low-pressure air flow state, and then enters the compressor after being mixed with acetylene.

Method used

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  • Energy-saving process for acetylenic ketone reaction device
  • Energy-saving process for acetylenic ketone reaction device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) The liquid phase stream output from the acethynone reactor contains 2500 kg of acetylene 745 kg and liquid ammonia, which is sent to the pressurized distillation column for pressure distillation.

[0043] (2) Acetylene 745 kg and liquid ammonia were 1460 kg from the acetylene mixture from the top of the pressurized distillation tower tower. Silic ammonia was 800 kg from the side line of the pressurized distillation column and the pressure was 1.2 MpAg. The tower output material of the pressurized distillation column is sent to the normal pressure distillation column, and the ammonia gas is flicked from the normal pressure distillation tower, and the pressure is 1000pAg.

[0044] (3) The output material of the normal pressure rectification column is sent to the primary pressure lifter, from the liquid ammonia from the side line of the pressurized distillation column as the power source, the output stream of the normal pressure rectification column (evaporated ammonia) Ga...

Embodiment 2

[0046] (1) The liquid phase stream output from the acethynylide reaction contains 260 kg of acetylene 75 kg and liquid ammonia, which is charged to the pressurized rectification column for pressurization.

[0047] (2) Acetylene 75 kg and liquid ammonia were 125 kg from the acetylene mixture from the top of the pressurized distillation tower. Silic ammonia was 110kg from the side line of the pressurized distillation column, and the pressure was 1.3 MpAg. The tower output material of the pressurized rectification column is sent to the normal pressure distillation column, and 25 kg is flicked from the normal pressure distillation tower, and the pressure is 1000pAg.

[0048] (3) The output material of the normal pressure rectification column is sent to the primary pressure lifter, from the liquid ammonia from the side line of the pressurized distillation column as the power source, the output stream of the normal pressure rectification column (evaporated ammonia) Gas) is blended. The ...

Embodiment 3

[0050] (1) The liquid phase stream output from the acethynone reactor contains 150 kg and liquid ammonia 550 kg, which is sent to the pressurized rectification column for pressurization.

[0051] (2) Acetylene 150 kg and liquid ammonia 260 kg from the acetylene mixture from the top of the pressurized distillation tower. Silic ammonia 220kg from the side line of the pressurized rectification column, pressure 1.5 MpAg. The tower output material of the pressurized rectification column is sent to the normal pressure rectification column, and the ammonia gas is 70 kg from the normal pressure distillation tower, and the pressure is 2000PAG.

[0052] (3) The output material of the normal pressure rectification column is sent to the primary pressure lifter, from the liquid ammonia from the side line of the pressurized distillation column as the power source, the output stream of the normal pressure rectification column (evaporated ammonia) Gas) is blended. The ammonia pressure output from...

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Abstract

The invention provides an energy-saving process for an acetylenic ketone reaction device. Pressurized rectification and normal-pressure rectification are sequentially carried out on an output material flow of an acetylenic ketone reactor so as to remove acetylene and ammonia in a reaction product, and low-pressure ammonia gas (100-2000 Pa) generated by a normal-pressure rectifying tower is drained by utilizing high-pressure ammonia gas (1.2-1.5 MPaG) extracted from a side line of a pressurized rectifying tower, so after ammonia gas generated by rectification of the normal-pressure rectifying tower is input into the first-stage pressure raiser, the gas pressure is increased; and then mixed ammonia gas output by the first-stage pressure raiser is used for guiding low-pressure acetylene, so that the pressure of acetylene and ammonia mixed gas output by the second-stage pressure raiser is increased to a relatively high degree, the inlet pressure of the compressor is increased, and the compression ratio of the compressor is greatly reduced. Specifically, the compression ratio is reduced from 30 to 6-8, energy is saved by 55% compared with that of a pressurized rectification process, and energy is saved by more than 80% compared with that of flash evaporation.

Description

Technical field [0001] The present invention relates to the field of organic chemical techniques, and more particularly to an energy-saving process for acethynynylide reaction apparatus. Background technique [0002] Currently, for the alkyol-like substance, such as methyl butyl alcohol, methylopentynol, dehydrofollenol, 2,5-dimethyl-2, 5-alkynylene glycol, etc., most mature at home and abroad. The preparation process is a solvent using liquid ammonia, dissolved in acetylene in liquid ammonia and acetone, and an alkaline catalyst is added to condense. Since the acetylene and ammonia are gas at normal temperature, it is necessary to pressurize the condensed liquid, i.e., dissolve acetylene in the liquid ammonia at a certain pressure and temperature. When entering the compressor, the mixed gas pressure of acetyhane not only determines the compression ratio of the compressor (level 1 or multiple level) and the number of compressors, but also obvious for device energy consumption. Si...

Claims

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Application Information

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IPC IPC(8): C07C33/042C07C29/42C07C33/048C07C33/044C07C29/76C07C29/80
CPCC07C29/42C07C29/76C07C29/80C07C33/042C07C33/048C07C33/044Y02P20/10
Inventor 韩向阳韩沁言陈丽张念池
Owner 四川丰雍科技有限公司
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