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A decompression temperature swing adsorption process and device

A temperature swing adsorption and process technology, applied in the direction of dispersed particle separation, chemical instruments and methods, separation methods, etc., can solve the problems of increasing cost, affecting the regeneration speed of the adsorbent, and low efficiency, so as to reduce the pulverization speed, fast regeneration, high efficiency effect

Active Publication Date: 2017-02-15
杭州东安科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The solid adsorption method is currently widely used. For example, the disclosed technology named "A device for dehydrating and removing heavy hydrocarbons from oilfield associated gas" (authorized announcement number CN203256242U) uses the solid adsorption method, but the heat-blown regeneration gas of this patented technology After gas-liquid separation, a booster is needed to increase the pressure and then enter the raw gas, but there are still shortcomings such as low efficiency and affecting the regeneration speed of the adsorbent, and after gas-liquid separation, the booster needs to be used to increase the cost

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  • A decompression temperature swing adsorption process and device
  • A decompression temperature swing adsorption process and device
  • A decompression temperature swing adsorption process and device

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Embodiment 1

[0023] Embodiment 1: a kind of decompression type temperature swing adsorption process, as attached figure 1 , attached figure 2 As shown, the first step is to switch the circuit and divide the four adsorption towers into two groups, one group is one as the low-pressure main adsorption tower, and the other group is three, which are divided into high-pressure pre-adsorption tower, cold blowing regeneration tower, hot Blowing regeneration tower; a heater is installed on the pipeline between the cold blowing regeneration tower and the hot blowing regeneration tower, and the hot blowing regeneration tower is connected with a cooler and a separator, and the output end of the separator is connected to the inlet pipeline of the low-pressure main adsorption tower;

[0024] In the second step, the high-pressure raw gas is divided into two paths; one path is decompressed to form low-pressure raw gas, which enters the low-pressure main adsorption tower and outputs low-pressure product g...

Embodiment 2

[0028] Embodiment 2: a kind of decompression type temperature swing adsorption device, as attached figure 2 As shown, it includes four adsorption towers T101A, T101B, T101C, and T101D; the inlet and outlet of each adsorption tower are connected to four stop valves, for example, the inlet and outlet of adsorption tower T101A are connected to stop valves KS101a~KS108a, and the inlet of adsorption tower T101B is , The outlet is connected to the stop valve KS101b~KS108b, the inlet and outlet of the adsorption tower T101C are connected to the stop valve KS101c~KS108c, the inlet and outlet of the adsorption tower T101D are connected to the stop valve KS101d~KS108d; the inlet and outlet of each adsorption tower are directly connected to the four stop valves Outlet or inlet; the shut-off valve connected to the outlet of the adsorption tower, one connected to the product gas output circuit, two communicated through the heater K3, and one connected to a shut-off valve at the inlet of th...

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Abstract

The invention relates to a decompression-type variable-temperature adsorption process and a decompression-type variable-temperature adsorption device. The decompression-type variable-temperature adsorption process comprises the following steps: step 1, switching a loop, dividing four adsorption towers into two groups, wherein one group is provided with a low-pressure main adsorption tower, the other group is provided with a high-pressure pre-adsorption tower, a cool blowing regeneration tower and a hot blowing regeneration tower; a heater is arranged on a pipeline between the cool blowing regeneration tower and the hot blowing regeneration tower, a cooler and a separator are arranged behind the hot blowing regeneration tower, and the output end of the separator is connected with an inlet pipeline of the low-pressure main adsorption tower; step 2, dividing high-pressure raw gas into two circuits, wherein one circuit is low-pressure raw gas formed in a decompression manner, driving the low-pressure raw gas to enter the low-pressure main adsorption tower, and outputting low-pressure product gas; the other circuit sequentially enters the high-pressure pre-adsorption tower, the cold blowing regeneration tower, the heater, the hot blowing regeneration tower, the cooler and the separator and then enters an access loop of the low-pressure main adsorption tower, and high-boiling-point liquid separated by the separator is discharged.

Description

technical field [0001] The invention relates to the field of pressure swing adsorption air separation, in particular to a decompression type temperature swing adsorption process and device. Background technique [0002] There are many natural gas purification methods, and solid adsorption method is one of them. It uses porous solid particles to selectively adsorb highly polar substances in the fluid and attach them to the inner and outer surfaces, so that the fluid mixture can be separated. At present, the commonly used adsorbents in the adsorption method include molecular sieves, silica gel and activated alumina. The solid adsorption method is currently widely used. For example, the disclosed technology named "A device for dehydrating and removing heavy hydrocarbons from oilfield associated gas" (authorized announcement number CN203256242U) uses the solid adsorption method, but the heat-blown regeneration gas of this patented technology After gas-liquid separation, a boost...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/047
Inventor 胡鸿频
Owner 杭州东安科技有限公司