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Multi-tower parallel type drying and purifying process and device

A purification device and parallel technology, applied in chemical instruments and methods, gas treatment, membrane technology, etc., can solve the problems of large equipment footprint, high manufacturing cost, and inability to achieve dew point

Pending Publication Date: 2020-06-23
XIAN UNIONFILTER PURIFICATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of the existing double-tower structure gas drying and purification schemes, which have high manufacturing costs, large installed power of supporting facilities, large equipment footprint, and inability to achieve a better dew point and longer impurity gas penetration time, the present invention provides A multi-tower parallel drying and purification process and device

Method used

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  • Multi-tower parallel type drying and purifying process and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0133] Embodiment one (with reference to figure 1 ):

[0134] Step 1: 1# drying tower, 2# drying tower, 3# drying tower form the adsorption group, 4# drying tower and 5# drying tower form the regeneration group; 4# adsorption tower and 5# adsorption tower are in a dry state before starting; The regeneration group is equipped with the first blower 1 (heating blower) and the second blower 5 (cooling blower); a set of regeneration air unit (also can adopt multiple sets in other embodiments), a set of air blowing unit (in other embodiments Multiple sets can also be used).

[0135] Step 2: The first round of adsorption and regeneration:

[0136] 2.1] 0-1 / 3 saturated adsorption time:

[0137] 1# drying tower, 2# drying tower and 3# drying tower are in adsorption purification, 4# drying tower and 5# drying tower are waiting for conversion;

[0138] The raw material gas passes through the pre-cooling unit, after being cooled by the pre-cooling unit, the solid particles and liquid ...

Embodiment 2

[0188] Embodiment two (with reference to figure 2 ):

[0189]Step 1: 1# drying tower, 2# drying tower, 3# drying tower, 4# drying tower form the adsorption group, 5# drying tower and 6# drying tower form the regeneration group; before starting, 5# adsorption tower and 6# adsorption tower In a dry state; the regeneration group is equipped with a first air blower 1 (heating air blower) and a second air blower 5 (cooling air blower); a set of regeneration air unit (multiple sets can also be used in other embodiments), a set of air blower unit (multiple sets can also be used in other embodiments).

[0190] Step 2: The first round of adsorption and regeneration:

[0191] 2.1] 0-1 / 4 saturated adsorption time:

[0192] 1# drying tower, 2# drying tower, 3# drying tower, 4# drying tower are in adsorption purification, 5# drying tower and 6# drying tower are waiting for conversion;

[0193] The raw gas passes through the pre-cooling unit, after being cooled by the pre-cooling unit,...

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Abstract

The invention provides a multi-tower parallel type drying and purifying process and device in order to overcome the defects that an existing gas drying and purifying scheme of a double-tower structureis high in manufacturing cost, large in supporting facility installed power, large in equipment occupied area and incapable of achieving a better dew point and longer impurity gas penetrating time. Mdrying towers are used for adsorption, N drying towers are used for graded regeneration, and compared with traditional double towers, the power distribution power and public system configuration canbe greatly reduced; a fan is used as a power source during regeneration; closed-loop cold blowing is carried out on the regenerated drying tower from bottom to top, residual heat in the tower can be effectively utilized, an upper-layer adsorbent is deeply desorbed, residual water in the adsorbent is transferred to an inlet of the adsorption tower, more reasonable residual water content distribution is formed, and a better dew point and longer foreign gas penetration time can be achieved after switching.

Description

technical field [0001] The invention provides a multi-tower parallel drying and purification process and device. Background technique [0002] At present, due to the limitation of working conditions in special fields such as oil and natural gas, it is required that the gas drying and purification device must work continuously for 24 hours. The drying and purification scheme, that is, when one adsorption tower performs adsorption operation, the other adsorption tower is regenerated. This scheme has the following disadvantages: [0003] 1. Each adsorption tower needs to provide a set of circulating water, chilled water system, etc., and the cost is relatively high. [0004] 2. The required power distribution is high, the installed power of supporting facilities is high, and the equipment occupies a large area. [0005] 3. A better dew point and a longer penetration time of impurity gases (carbon dioxide, hydrogen sulfide, etc.) cannot be achieved. Contents of the invention...

Claims

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Application Information

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IPC IPC(8): B01D53/26B01D53/02
CPCB01D53/261B01D53/02B01D2259/4009
Inventor 李国骏李大明孙增辉
Owner XIAN UNIONFILTER PURIFICATION EQUIP
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