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
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[0048] Example 1
[0049] A pressure swing adsorption device with pre-recovery and re-recovery to remove CO from shift gas 2 The method uses carbonized coal pellets as raw material for shift gas. The adsorption tower is equipped with activated alumina, activated carbon, and fine-pored silica gel in an optimized proportion. 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] The temperature of raw material gas is ≤40℃, 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 in one cycle in turn: adsorption, pre-recovery, one-level reduction, two-level reduction, three-level reduction, four-level reduction, re-recovery, evacuation, four-level rise , Three equals, two equals, one equals and final charge and boost.
[0054] The adsorption device is compose...
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[0084] Example 2
[0085] A pressure swing adsorption device with pre-recovery and re-recovery to remove CO from shift gas 2 The method is based on the shift gas made from ordinary coal. The adsorption tower contains activated alumina, activated carbon, and fine-pored silica gel in an optimized ratio (please specify). The 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℃, and the pressure: 0.60MPa
[0089] Such as figure 2 As shown, it is characterized in that: each adsorption tower undergoes the following process steps in one cycle in turn: adsorption, pre-recovery, one-level reduction, two-level reduction, three-level reduction, four-level reduction, re-recovery, evacuation, four-level rise , Three equals, two equals, one equals and final charge and boost.
[0090] The adsorption device is...
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