Unlock instant, AI-driven research and patent intelligence for your innovation.

Pressure swing absorption decarbonization process and apparatus

A technology of pressure swing adsorption and decarbonization, which is applied to the separation of dispersed particles, hydrogen separation, and hydrogen separation using solid contact, which can solve problems such as pollution, increased energy consumption, and increased difficulty in vacuuming and desorption of the system, so as to reduce energy consumption, The effect of improving utilization rate and reducing difficulty

Active Publication Date: 2007-12-19
杭州东安科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] In this process, all the recovered gas flows out through the top of the adsorption tower, causing the impurity gas in the adsorption tower to continuously pollute the upper part of the adsorption tower, which increases the difficulty of vacuuming the desorption of the system (that is, increases energy consumption)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pressure swing absorption decarbonization process and apparatus
  • Pressure swing absorption decarbonization process and apparatus
  • Pressure swing absorption decarbonization process and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] See Figure 4, this process is 6000Nm 3 / h pressure swing adsorption decarburization process

[0056] This process flow is to produce liquid alcohol, and the CO of the product gas decarbonized by pressure swing adsorption 2 The content is 0.2%. The system consists of six adsorption towers. During the operation of the device, there are two adsorption towers for adsorption at the same time. The two adsorption towers are evacuated at the same time, and the pressure is equalized twice, which is referred to as the 6-2-2-2 / V process. Each adsorption tower has to go through in one cycle: adsorption (A), first pressure equalization drop (E1L), second pressure equalization drop (E2L), recovery (RP), vacuum pumping (CU), first pressure equalization There are nine steps including pressure rise (E1R), pressure second equalization rise (E2R), reverse charge (RRL), and final charge (RL).

[0057] Taking the working condition of tower A going through nine steps in one cycle as an ex...

Embodiment 2

[0079] This embodiment is: referring to Fig. 5, this technological process is 15000Nm 3 / h pressure swing adsorption decarburization process

[0080] This process is the production of co-alcohol, pressure swing adsorption decarburization product gas CO 2The content is 0.5% to 1%. The system consists of eight adsorption towers. During the operation of the device, there are three adsorption towers for adsorption at the same time, two adsorption towers are evacuated at the same time, and the pressure is equalized three times, referred to as 8-3-2-3 / V process. Each adsorption tower has to go through in one cycle: adsorption (A), pressure first equilibrium drop (E1L), pressure second equilibrium drop (E2L), pressure third equilibrium drop (E3L), recovery (RP), pumping Vacuum (CU), pressure first equalization rise (E1R), pressure second equalization rise (E2R), pressure third equalization rise (E3R), reverse charge (RRL), final charge (RL) and other eleven steps sequence.

[008...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates the pressure swing adsorption decarbonization technique and unit. The technique adopts parallel adsorption tower. The CO2 gas in raw gas is adsorbed by adsorbent to get product gas. The each circulation of technique comprises adsorption, decompression, recovery, evacuation, boost pressure and final pressurizing. The technique comprises the following steps: 1 carrying out gas recovery from the middle and top of adsorption tower; 2 after boost pressure, carrying out pressurizing at the negative direction, then carrying out final pressurizing. The pressurizing at the negative direction is that the recovery gas is entered into adsorption tower from the top of adsorption tower at negative direction after passing a recovery gas processing system. The invention improves the gas recovery efficiency and reduces the system dissipating energy.

Description

technical field [0001] The invention relates to a gas separation process and device, in particular to a pressure swing adsorption decarburization process and device. Background technique [0002] At present, pressure swing adsorption decarburization (removal of CO in raw gas 2 Gas) There are two main technological processes: one is to use the venting process, that is, to flush the bed with effective gas. The disadvantage of this process is that the effective gas yield is low. Another recovery process is used, that is, the gas flushing the bed in the venting process is recovered from the top of the adsorption tower through the compressor. Due to the recovery from the top of the adsorption tower, the impurity front in the adsorption tower continues to advance to the top of the adsorption tower, resulting in The energy consumption of system desorption is high, and the disadvantage of this process is the high energy consumption of the system. [0003] Pressure swing adsorption...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/047C01B3/56
CPCY02P20/151
Inventor 刘艳
Owner 杭州东安科技有限公司