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Method for pre-reclaiming and anew-reclaiming mechanism for removing CO#[2] from converting gas of pressure swing adsorption device

A technology of pressure swing adsorption and recycling, which is applied in the direction of chemical instruments and methods, separation methods, and dispersed particle separation, etc. It can solve the problems affecting the total output and operating costs of synthetic ammonia and methanol production, large investment in pressure swing adsorption devices, and proportional imbalances, etc. problems, to achieve the effect of reducing equipment investment and operating costs, reducing load and improving recovery rate

Inactive Publication Date: 2005-06-29
刘明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] CO removal from shift gas by pressure swing adsorption 2 Although there are many published patent documents at home and abroad, these patent documents do not involve the whole nitrogen fertilizer or the relationship between the production device and the pressure swing adsorption device in the front and rear sections of the fertilizer production, but only the pressure swing adsorption The single disclosure of the device, resulting in excessive investment in the pressure swing adsorption device, and the effective gas H 2 , N 2 , CO loss, especially N 2 , the loss of CO is greater, which leads to H in the whole nitrogen fertilizer or fertilizer production plant 2 , N 2 Or a serious imbalance in the proportion of CO, which in turn affects the total output and operating costs of synthetic ammonia and methanol production

Method used

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  • Method for pre-reclaiming and anew-reclaiming mechanism for removing CO#[2] from converting gas of pressure swing adsorption device
  • Method for pre-reclaiming and anew-reclaiming mechanism for removing CO#[2] from converting gas of pressure swing adsorption device
  • Method for pre-reclaiming and anew-reclaiming mechanism for removing CO#[2] from converting gas of pressure swing adsorption device

Examples

Experimental program
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Effect test

Embodiment 1

[0049] A pressure swing adsorption device with pre-recovery and re-recovery to remove CO from shift gas 2 The method uses carbonized briquettes as raw material for shift gas, and the adsorption tower is equipped with activated alumina, activated carbon, and fine-pore silica gel according to the optimal ratio. The gas components are as follows:

[0050] Component H 2 N 2 CO CO 2 CH 4 Other Total Sulfur H 2 O (steam)

[0051] Concentration (V) ~50% ~15% ~3% ~31% ~1% ~1 3 saturation

[0052] Among them, the temperature of the raw material gas is ≤40°C, and the pressure is 0.70MPa

[0053] Such as figure 1 As shown, it is characterized in that each adsorption tower undergoes the following process steps sequentially in one cycle: adsorption, pre-recovery, first leveling, second leveling, third leveling, fourth leveling, re-recovery, evacuation, fourth leveling , Three average rises, two average rises, one average rise and final charge boost.

[0054] The adsorption...

Embodiment 2

[0085] A pressure swing adsorption device with pre-recovery and re-recovery to remove CO from shift gas 2 The method, which is a shift gas with ordinary coal as raw material, activated alumina, activated carbon, and fine-pore silica gel are installed in the adsorption tower according to the optimal ratio (please specify), and its gas components are as follows:

[0086] Component H 2 N 2 CO CO 2 CH 4 Other Total Sulfur H 2 O (steam)

[0087] Concentration (V) ~52% ~17% ~1% ~28% ~1% ~1 3 saturation

[0088] Among them, the temperature of the raw material gas is ≤40°C, and the pressure is 0.60MPa

[0089] Such as figure 2 As shown, it is characterized in that each adsorption tower undergoes the following process steps sequentially in one cycle: adsorption, pre-recovery, first leveling, second leveling, third leveling, fourth leveling, re-recovery, evacuation, fourth leveling , Three average rises, two average rises, one average rise and final charge boost.

[00...

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Abstract

The invention unfurls a kind of way of removing carbon dioxide by attach equipment. Every attach tower including the craft step as follows: attach A, advanced recycle YR, balance and reduce press, recycle ZR, absorb VC, balance and increase press ER and last increase presser, the invention can change the attach equipment to the no-recycle craft step by auto or hand under the condition of machine working; the invention realizes the maximum recycle of validity air like hydrogen, nitrogen spirit and carbon monoxide, so we can increase the total yield of ammonia and methyl alcohol by maximum.

Description

Technical field: [0001] The invention relates to the removal of CO from shift gas by means of pressure swing adsorption 2 The method, specifically, the present invention relates to a kind of using pressure swing adsorption gas separation technology with pre-recovery and re-recovery to remove CO in the shift gas 2 The method is mainly used in small nitrogen fertilizer or chemical fertilizer industry. Background technique: [0002] CO removal from shift gas by pressure swing adsorption 2 Although there are many published patent documents at home and abroad, these patent documents do not involve the whole nitrogen fertilizer or the relationship between the production device and the pressure swing adsorption device in the front and rear sections of the fertilizer production, but only the pressure swing adsorption The single disclosure of the device, resulting in excessive investment in the pressure swing adsorption device, and the effective gas H 2 , N 2 , CO loss, especiall...

Claims

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Application Information

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IPC IPC(8): B01D53/047
CPCY02C20/40
Inventor 刘明
Owner 刘明
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