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Vinyl acetate production device and method in cooperation with heat accumulating type calcium carbide production process

A vinyl acetate production process technology, applied in the field of co-production of vinyl acetate with regenerative calcium carbide production process, to achieve the effects of low power consumption, strong comprehensive product competitiveness and good economy

Active Publication Date: 2015-12-23
BEIJING HUAFU ENG
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Problems solved by technology

There is no report on the co-production of vinyl acetate in the regenerative calcium carbide production process

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  • Vinyl acetate production device and method in cooperation with heat accumulating type calcium carbide production process

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specific Embodiment

[0039] like figure 1As shown, it includes the following units: regenerative calcium carbide production unit 1, calcium carbide dry acetylene unit 2, pressure swing adsorption carbon monoxide extraction unit 3, carbonylation synthesis of acetic acid unit 4, fixed bed synthesis of vinyl acetate unit 5. in:

[0040] The regenerative calcium carbide production unit 1 includes a raw material treatment process, a rotary bed coal dry distillation process, a calcium carbide furnace process, and a dry distillation gas purification process;

[0041] The raw material processing process is a raw material processing system, the main function of which is the reception of raw coal and quicklime, as well as the crushing, grinding, batching, mixing and agglomeration of raw coal and quicklime, so as to meet the requirements of the pyrolysis rotary bed for qualified agglomeration ;

[0042] In the rotating bed coal dry distillation process, the pellets formed from the raw material treatment pr...

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Abstract

The invention discloses a vinyl acetate production device and method in cooperation with a heat accumulating type calcium carbide production process. The device comprises a heat accumulating type calcium carbide production unit, wherein a calcium carbide outlet of the heat accumulating type calcium carbide production unit is connected with a calcium carbide acetylene drying unit, the calcium carbide acetylene drying unit is provided with a process water inlet, an acetylene outlet of the calcium carbide acetylene drying unit is connected with a fixed-bed vinyl acetate synthesis unit, and the fixed-bed vinyl acetate synthesis unit is provided with a vinyl acetate outlet. The heat accumulating type calcium carbide production unit is provided with a raw coal inlet and a calcined lime inlet, a calcium carbide furnace tail gas outlet of the heat accumulating type calcium carbide production unit is connected with a pressure swing adsorption carbon monoxide extracting unit, a CO outlet of the pressure swing adsorption carbon monoxide extracting unit is connected with a carbonylating acetic acid synthesis unit, and an acetic acid outlet of the carbonylating acetic acid synthesis unit is connected with the fixed-bed vinyl acetate synthesis unit. The vinyl acetate production device has the advantages of being good in raw material adaptability, low in calcium carbide production power consumption, low in pollution, high in energy conversion efficiency, high in economical efficiency and the like.

Description

technical field [0001] The invention relates to a joint production technology of calcium carbide, acetylene, pressure swing adsorption to extract CO, acetic acid and vinyl acetate, in particular to a device and method for co-producing vinyl acetate with a regenerative calcium carbide production process. Background technique [0002] Calcium carbide is an important chemical raw material. Generally, calcium carbide production refers to the process of heating semi-coke or coke with lime under the condition of isolation from air and high temperature, and a high-temperature reduction reaction occurs to finally obtain the finished calcium carbide. At present, the existing domestic calcium carbide production process needs to consume a large amount of electric energy and high-quality semi-coke or coke in the production process, and at the same time emit a large amount of waste gas, dust and other pollutants into the atmosphere. The current calcium carbide production process has high ...

Claims

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Application Information

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IPC IPC(8): C01B31/32C07C69/15C07C67/04C01B32/942
CPCY02P20/10
Inventor 魏巍郝毅陈红寇恒林
Owner BEIJING HUAFU ENG
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