CN206430600U - Low molecule esters separation equipment in a kind of hydrogen tail gas - Google Patents

Low molecule esters separation equipment in a kind of hydrogen tail gas Download PDF

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Publication number
CN206430600U
CN206430600U CN201720103778.4U CN201720103778U CN206430600U CN 206430600 U CN206430600 U CN 206430600U CN 201720103778 U CN201720103778 U CN 201720103778U CN 206430600 U CN206430600 U CN 206430600U
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low molecule
tail gas
hydrogenation
separator
deflection plate
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CN201720103778.4U
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Chinese (zh)
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狄建国
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Erdos New Hangzhou Energy Co Ltd
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Erdos New Hangzhou Energy Co Ltd
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Abstract

The utility model discloses low molecule esters separation equipment in a kind of hydrogen tail gas, including separator, the inside of separator is hollow structure, the shell and tube condenser that the hydrogenation gas inlet connection that the side of separator is opened up cools to hydrogenation tail gas, the inside of separator is provided with deflection plate, and the shape of deflection plate is V-shaped, liquid film is formed between deflection plate, it is provided with the top of deflection plate below filler, deflection plate and offers low molecule esters outlet, the top position of filler is provided with hydrogenation offgas outlet.Realize that low molecule esters are separated, hydrogenation tail gas is smoothly reclaimed, protect PSA adsorbents, the recyclable hydrogen 150Nm of ethylene glycol3, year, recyclable byproduct hydrogen 57,600,000 marked cubic meter, strengthened the service life of adsorbent, novel in design, is a kind of good innovation scheme, there is very much market promotion prospect.

Description

Low molecule esters separation equipment in a kind of hydrogen tail gas
Technical field
The utility model is related to gas purification apparatus, tail gas institute is hydrogenated with more particularly in coal-ethylene glycol production technology rich The separation eliminating equipment of the esters containing low molecule.
Background technology
At present, coal based synthetic gas preparing ethylene glycol is produced is using two-step method:Oxalate route, oxalate is hydrogenated to first The mixtures such as alcohol, ethylene glycol, national standard ethylene glycol product is obtained through separation and purification, and hydrogenation tail is produced in the technique hydrogenation process Gas, often produces one ton of ethylene glycol and about produces hydrogenation tail gas 150Nm3, the partial hydrogenation tail gas main component is hydrogen, in addition, also Contain the compositions such as part methanol, ethanol, ethylene glycol, diethylene glycol, butanediol, methyl formate, methyl glycollate, low point of this part Sub- esters have a strong impact on hydrogenation tail gas and subsequently pass through pressure-variable adsorption (PSA) purifying hydrogen of hydrogen, if methyl formate therein was accumulated Height, then can decompose generation formic acid, and etching apparatus pipeline can equally reduce methanol concentration, make the increase of methanol loop amount, and energy consumption increases Plus, it there is deficiency.
In summary, for the defect of prior art, it is accordingly required in particular to low molecule esters separation equipment in a kind of hydrogen tail gas, To solve the deficiencies in the prior art.
Utility model content
For being hydrogenated with tail gas problem present in purification in the prior art, the utility model proposes in a kind of hydrogen tail gas Low molecule esters separation equipment, it is novel in design, pass through low molecule esters separation equipment before hydrogenation tail gas enters PSA system, go The influence being poisoned except this material to PSA system adsorbent, it is ensured that hydrogenation tail gas is smoothly reclaimed, and is being utilized, is being solved to hydrogen The certainly defect of prior art.
To achieve these goals, the technical solution of the utility model is as follows:
Low molecule esters separation equipment in a kind of hydrogen tail gas, including separator, the inside of separator is hollow structure, point The shell and tube condenser cooled from the hydrogenation gas inlet connection that the side of device is opened up to hydrogenation tail gas, the inside of separator is installed There is deflection plate, the shape of deflection plate is V-shaped, is formed between deflection plate and filler is provided with the top of liquid film, deflection plate, deflection plate Lower section offers low molecule esters outlet, and the top position of filler is provided with hydrogenation offgas outlet.
Further, described filler uses material for stainless steel.
Shape in the upper and lower end face of separator described in the utility model is arc-shaped.
The upper end of hydrogenation gas inlet is in the position of deflection plate described in the utility model.
Further, the interface that the surface of described separator is opened up is fixed with liquid level gauge by adpting flange.
Further, a diameter of 0.6m of described separator, is highly 3.6m.
Further, described hydrogenation gas inlet, low molecule esters outlet, the surface of hydrogenation offgas outlet are mounted on Control valve, control valve uses check valve.
Further, the bottom of described separator is provided with support frame.
The beneficial effects of the utility model are:This product is simple in construction, realizes that low molecule esters are separated, makes hydrogenation tail gas suitable Profit is reclaimed, and protects PSA adsorbents, the recyclable hydrogen 150Nm of ethylene glycol3, year, recyclable byproduct hydrogen 57,600,000 marked cubic meter, Strengthen the service life of adsorbent, it is novel in design, it is a kind of good innovation scheme, there is very much market promotion prospect.
Brief description of the drawings
Describe the utility model in detail with reference to the accompanying drawings and detailed description:
Fig. 1 is structural representation of the present utility model;
100- separators in figure, 110- hydrogenation gas inlets, 120- support frames, 130- upper and lower end faces, 140- low molecule esters Class outlet, 150- deflection plates, 160- fillers, 170- hydrogenation offgas outlets, 180- interfaces.
Embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under Face combines and is specifically illustrating, and the utility model is expanded on further.
Referring to Fig. 1, a kind of low molecule esters separation equipment in hydrogen tail gas, including separator 100, separator 100 it is interior Portion is hollow structure, and the hydrogenation gas inlet 110 that the side of separator 100 is opened up connects the tube type cold cooled to hydrogenation tail gas Condenser, the inside of separator 100 is provided with deflection plate 150, and the shape of deflection plate 150 is V-shaped, and liquid is formed between deflection plate 150 Film, the top of deflection plate 150 is provided with filler 160, and the lower section of deflection plate 150 offers low molecule esters outlet 140, filler 160 top position is provided with hydrogenation offgas outlet 170.
In addition, filler 160 uses material for stainless steel.The shape of the upper and lower end face of separator 100 is arc-shaped.Baffling The position of plate 150 is in the upper end of hydrogenation gas inlet 110.The interface 180 that the surface of separator 100 is opened up is by adpting flange It is fixed with liquid level gauge.A diameter of 0.6m of separator 100, is highly 3.6m.It is hydrogenated with gas inlet 110, the discharge of low molecule esters Mouth 140, the surface of hydrogenation offgas outlet 170 are mounted on control valve, and control valve uses check valve.The bottom of separator 100 Portion is provided with support frame 120.
It is hydrogenated with tail gas and comes from ethylene glycol hydrogeneration processes unit, flow about 8000Nm3/ h, pressure 3.0MPa, temperature 60 C, this Utility model after hydrogenation tail gas cooling using shell and tube condenser to entering low molecule esters separator, and the separator uses baffling The filled form of plate, efficiently separates the low molecule esters of influence subsequent production, and separating effect reaches PPM grades, it is ensured that subsequent production Be smoothed out.
According to unstripped gas characteristic, the separator is designed to multiple-effect deflection plate form, in deflection plate formation liquid film, suitable Under flow control, by material diffusion principle, liquid film repeatedly absorbs the low molecule esters in hydrogen tail gas, and forms step and successively decrease, Drop is further most filtered through stainless steel monoblock filler afterwards, so as to realize that low molecular alcohols, esters are efficiently separated.
Low molecule esters cyclone separator arrangement and operational control index are the utility model content.The equipment material is stainless Steel, production control mode is centralized computer control system (DCS).
Embodiment of the present utility model:Ethylene glycol hydrogenation tail gas initially enters cooler, is entered after cooling by hydrogenation tail gas Mouth enters low molecule esters separator, isolates and enters PSA system purification recovery hydrogen, equipment formation liquid reasonable in design after esters Membrane diffusion condition, to ensure separating effect, the utility model design is directed to 8000Nm3/ h flow, from separator diameter 0.6 Rice, 3.6 meters of height, esters content is controlled in product in design conditions scope inner separator low molecule esters separating effect preferably In 50-100PPm.
The utility model is effective to be:It is simple in construction, realize that low molecule esters are separated, hydrogenation tail gas is smoothly reclaimed, protect Protect PSA adsorbents, the recyclable hydrogen 150Nm of ethylene glycol3, year, recyclable byproduct hydrogen 57,600,000 marked cubic meter, enhancing absorption The service life of agent, it is novel in design, it is a kind of good innovation scheme, there is very much market promotion prospect.
It should be understood by those skilled in the art that, the utility model is not restricted to the described embodiments, above-described embodiment and Simply illustrate principle of the present utility model described in specification, on the premise of the utility model spirit and scope are not departed from originally Utility model also has various changes and modifications, and these changes and improvements are both fallen within the range of claimed the utility model. The utility model is claimed scope and defined by appended claims and its equivalent.

Claims (8)

1. low molecule esters separation equipment in a kind of hydrogen tail gas, including separator, the inside of separator is hollow structure, and it is special Levy and be:The hydrogenation gas inlet connection that the side of separator is opened up is to the shell and tube condenser of hydrogenation tail gas cooling, separator Inside deflection plate is installed, the shape of deflection plate is V-shaped, is formed to be provided with the top of liquid film, deflection plate between deflection plate and filled out Low molecule esters outlet is offered below material, deflection plate, the top position of filler is provided with hydrogenation offgas outlet.
2. low molecule esters separation equipment in a kind of hydrogen tail gas according to claim 1, it is characterised in that:Described filler Material is used for stainless steel.
3. low molecule esters separation equipment in a kind of hydrogen tail gas according to claim 1, it is characterised in that:Described separation The shape of the upper and lower end face of device is arc-shaped.
4. low molecule esters separation equipment in a kind of hydrogen tail gas according to claim 1, it is characterised in that:Described baffling The position of plate is in the upper end of hydrogenation gas inlet.
5. low molecule esters separation equipment in a kind of hydrogen tail gas according to claim 1, it is characterised in that:Described separation The interface that the surface of device is opened up is fixed with liquid level gauge by adpting flange.
6. low molecule esters separation equipment in a kind of hydrogen tail gas according to claim 1, it is characterised in that:Described separation A diameter of 0.6m of device, is highly 3.6m.
7. low molecule esters separation equipment in a kind of hydrogen tail gas according to claim 1, it is characterised in that:Described hydrogenation Gas inlet, low molecule esters outlet, the surface of hydrogenation offgas outlet are mounted on control valve, and control valve is using unidirectional Valve.
8. low molecule esters separation equipment in a kind of hydrogen tail gas according to claim 1, it is characterised in that:Described separation The bottom of device is provided with support frame.
CN201720103778.4U 2017-01-25 2017-01-25 Low molecule esters separation equipment in a kind of hydrogen tail gas Active CN206430600U (en)

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Application Number Priority Date Filing Date Title
CN201720103778.4U CN206430600U (en) 2017-01-25 2017-01-25 Low molecule esters separation equipment in a kind of hydrogen tail gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720103778.4U CN206430600U (en) 2017-01-25 2017-01-25 Low molecule esters separation equipment in a kind of hydrogen tail gas

Publications (1)

Publication Number Publication Date
CN206430600U true CN206430600U (en) 2017-08-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108317869A (en) * 2018-02-01 2018-07-24 大连葆光节能空调设备厂 A kind of folded plate spray heat exchanger
CN109603188A (en) * 2019-01-31 2019-04-12 内蒙古通威高纯晶硅有限公司 Tail gas adsorption regeneration gas condenser system and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108317869A (en) * 2018-02-01 2018-07-24 大连葆光节能空调设备厂 A kind of folded plate spray heat exchanger
CN109603188A (en) * 2019-01-31 2019-04-12 内蒙古通威高纯晶硅有限公司 Tail gas adsorption regeneration gas condenser system and method

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