CN204702707U - A kind of coal gas combined purifying tower - Google Patents
A kind of coal gas combined purifying tower Download PDFInfo
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- CN204702707U CN204702707U CN201520355689.XU CN201520355689U CN204702707U CN 204702707 U CN204702707 U CN 204702707U CN 201520355689 U CN201520355689 U CN 201520355689U CN 204702707 U CN204702707 U CN 204702707U
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- coal gas
- naphthalene
- gas
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Abstract
The utility model relates to a kind of coal gas combined purifying tower, vertical tower body comprises coal gas cooling section, tar removing section, desulfurization section and de-naphthalene section from bottom to up successively, series system is adopted to connect between each section, above de-naphthalene section, gas exit is set, tower body below coal gas cooling section is provided with manhole, be provided with gas inlet pipe below manhole, bottom tower body, be provided with sewage draining exit.The utility model arranges coal gas cooling section, can reduce gas temperature further, improves the adsorption effect of sweetening agent and gac, and reduces dew point of gas, reduce the moisture brought into from preorder workshop section, avoid the pollution to sweetening agent and gac; Tar removing section is set, the most tar fogs carried secretly in coal gas can be trapped, greatly reduce the possibility that tar is assembled at sweetening agent packing layer, improve the work-ing life of sweetening agent packing layer, reduce the replacement cycle; Desulfurization section and de-naphthalene section are arranged in series, and decrease number of devices and floor space, enhance productivity, and reduce production cost.
Description
Technical field
The utility model relates to the coal gas combined purifying tower for coal gas deep purifying in a kind of coke-oven gas deep processing technology.
Background technology
Coke-oven gas, after rough purification, still contains a small amount of hydrogen sulfide (<200mg/Nm
3) and naphthalene (<500mg/Nm
3), at some, higher occasion (as techniques such as coal gas methyl alcohol, coal gas LNG) is required to gas purification degree, then need the deep purifying carrying out coal gas, remove a small amount of hydrogen sulfide contained in coal gas and naphthalene further.
Tradition coal gas advanced purification process desulfurization and de-naphthalene process is separated to carry out, and cause equipment investment cost large, technological operation is loaded down with trivial details, and the work-ing life of sweetening agent filler and active carbon filler is larger by the impact of preorder workshop section.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of coal gas combined purifying tower, desulfurization and de-naphthalene process is combined in same scavenging tower, decreases number of devices and floor space, enhance productivity, and reduces production cost.
For achieving the above object, the utility model realizes by the following technical solutions:
A kind of coal gas combined purifying tower, vertical tower body comprises coal gas cooling section, tar removing section, desulfurization section and de-naphthalene section from bottom to up successively, series system is adopted to connect between each section, above de-naphthalene section, gas exit is set, tower body below coal gas cooling section is provided with manhole, be provided with gas inlet pipe below manhole, bottom tower body, be provided with sewage draining exit.
Described coal gas cooling section comprises stationary tubesheet, heat transfer tube, cooling water inlet and cooling water outlet, and tube side medium is coal gas, and shell side medium is water coolant.
Described tar removing section, desulfurization section and de-naphthalene section are respectively equipped with packing support, unload filler manhole, load material manhole, the packing support of tar removing section uploads dress metallurgical coke filler, the packing support of desulfurization section uploads dress ferric oxide desulfurizer filler, and the packing support of de-naphthalene section uploads dress active carbon filler.
Between described tar removing section and desulfurization section, between desulfurization section and de-naphthalene section, be equipped with gas distributor.
The uniform some venting ports in bottom of described gas inlet pipe.
Compared with prior art, the beneficial effects of the utility model are:
The utility model arranges coal gas cooling section, can reduce gas temperature further, improves the adsorption effect of sweetening agent and gac, and reduces dew point of gas, reduce the moisture brought into from preorder workshop section, avoid the pollution to sweetening agent and gac; Tar removing section is set, the most tar fogs carried secretly in coal gas can be trapped, greatly reduce the possibility that tar is assembled at sweetening agent packing layer, improve the work-ing life of sweetening agent packing layer, reduce the replacement cycle; Desulfurization section and de-naphthalene section are arranged in series, and decrease number of devices and floor space, enhance productivity, and reduce production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-skirt 2-tower body 3-manhole 4-cooling water inlet 5-coal gas cooling section 6-packing support 7-tar removing section 8-gas distributor 9-desulfurization section 10-unloads filler manhole 11-and takes off naphthalene section 12-gas exit 13-filling material manhole 14-cooling water outlet 15-heat transfer tube 16-tube sheet 17-gas inlet pipe 18-sewage draining exit
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further illustrated:
As shown in Figure 1, vertical tower body comprises coal gas cooling section (5), tar removing section (7), desulfurization section (9) and de-naphthalene section (11) from bottom to up successively, adopts series system to connect between each section.Gas inlet pipe (17) and sewage draining exit (18) are installed in tower body (2) bottom, the uniform some venting ports in bottom of gas inlet pipe, gas inlet pipe (17) top arranges manhole (3), and manhole (3) top arranges coal gas cooling section (5).
Coal gas cooling section (5) comprises stationary tubesheet (16), heat transfer tube (15), cooling water inlet (4) and cooling water outlet (14), and tube side medium is coal gas, and shell side medium is water coolant.Coal gas cooling section (5) top arranges tar removing section (7).
Tar removing section (7) comprises packing support (6), metallurgical coke filler, unloads filler manhole (10), loads material manhole (13).Tar removing section (7) top arranges gas distributor (8) and desulfurization section (9).
Desulfurization section (9) comprises packing support (6), ferric oxide desulfurizer filler, unloads filler manhole (10), loads material manhole (13).Desulfurization section (9) top arranges gas distributor (8) and de-naphthalene section (11).
De-naphthalene section (11) comprises packing support (6), active carbon filler, unloads filler manhole (10), loads material manhole (13), and de-naphthalene section (11) top arranges gas exit (12).
When carrying out combined purifying to coal gas, coal gas enters in tower by gas inlet pipe (17), the uniform venting port in gas entry (17) bottom can make radially to be uniformly distributed into tower coal gas, coal gas carries out indirect heat exchange with water coolant after entering coal gas cooling section, gas temperature is reduced, to improve the adsorption effect of ferric oxide desulfurizer and gac, coal gas enters tar removing section subsequently, coal gas is flowing by the gap between metallurgical coke, flow direction changes repeatedly, tar fog in coal gas drops in the outside surface being adsorbed on metallurgical coke in the process that the flow direction changes repeatedly, thus reach the object removing tar fog, ensure that follow-up sweetening agent filler is not by tar pollution.Coal gas enters gas distributor afterwards, enters desulfurization section after being uniformly distributed, and the hydrogen sulfide in coal gas and ferric oxide desulfurizer react, and reaction equation is:
Fe
2O
3·H
2O+3H
2S→Fe
2S
3·H
2O+3H
2O
Hydrogen sulfide content in coal gas can by 200mg/Nm
3left and right drops to 5mg/Nm
3below, the needs of coal gas deep processing can be met completely.Coal gas enters gas distributor again afterwards, enters de-naphthalene section after being uniformly distributed, the naphthalene in coal gas adsorb by the vesicular structure of gac, because coal gas is through overcooling, temperature is lower, the naphthalene of the overwhelming majority in coal gas adsorb by gac, naphthalene content can by 500mg/Nm
3drop to 50mg/Nm
3below.
Be only ultimate principle of the present utility model above, not impose any restrictions the utility model, every foundation the utility model carries out equivalent variations and modification to it, all within the category of the art of this patent protection scheme.
Claims (5)
1. a coal gas combined purifying tower, it is characterized in that, vertical tower body comprises coal gas cooling section, tar removing section, desulfurization section and de-naphthalene section from bottom to up successively, series system is adopted to connect between each section, above de-naphthalene section, gas exit is set, tower body below coal gas cooling section is provided with manhole, is provided with gas inlet pipe below manhole, is provided with sewage draining exit bottom tower body.
2. a kind of coal gas combined purifying tower according to claim 1, it is characterized in that, described coal gas cooling section comprises stationary tubesheet, heat transfer tube, cooling water inlet and cooling water outlet, and tube side medium is coal gas, and shell side medium is water coolant.
3. a kind of coal gas combined purifying tower according to claim 1, it is characterized in that, described tar removing section, desulfurization section and de-naphthalene section are respectively equipped with packing support, unload filler manhole, load material manhole, the packing support of tar removing section uploads dress metallurgical coke filler, the packing support of desulfurization section uploads dress ferric oxide desulfurizer filler, and the packing support of de-naphthalene section uploads dress active carbon filler.
4. a kind of coal gas combined purifying tower according to claim 1, is characterized in that, between described tar removing section and desulfurization section, is equipped with gas distributor between desulfurization section and de-naphthalene section.
5. a kind of coal gas combined purifying tower according to claim 1, is characterized in that, the uniform some venting ports in bottom of described gas inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355689.XU CN204702707U (en) | 2015-05-28 | 2015-05-28 | A kind of coal gas combined purifying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355689.XU CN204702707U (en) | 2015-05-28 | 2015-05-28 | A kind of coal gas combined purifying tower |
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| Publication Number | Publication Date |
|---|---|
| CN204702707U true CN204702707U (en) | 2015-10-14 |
Family
ID=54282339
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520355689.XU Active CN204702707U (en) | 2015-05-28 | 2015-05-28 | A kind of coal gas combined purifying tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109022049A (en) * | 2018-09-17 | 2018-12-18 | 陕西黑猫焦化股份有限公司 | A kind of desulfurization device and method for removing hydrogen sulfide in coal gas integrated with regeneration |
-
2015
- 2015-05-28 CN CN201520355689.XU patent/CN204702707U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109022049A (en) * | 2018-09-17 | 2018-12-18 | 陕西黑猫焦化股份有限公司 | A kind of desulfurization device and method for removing hydrogen sulfide in coal gas integrated with regeneration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180828 Address after: 116085 128 high energy street, Qixian Ling high tech Industrial Park, Dalian, Liaoning Patentee after: ACRE Coking And Refractory (Dalian) Engineering Consulting Corp., MCC Address before: 116085 128 high energy street, Qixian Ling high tech Industrial Park, Dalian, Liaoning Patentee before: ACRE Coking and Refractory Engineering Consulting Corporation, MCC |