CN103395750B - A kind of associating with hydrogen sulfide for Waste Sulfuric Acid burns acid-making process and incinerator used - Google Patents
A kind of associating with hydrogen sulfide for Waste Sulfuric Acid burns acid-making process and incinerator used Download PDFInfo
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- CN103395750B CN103395750B CN201310310167.3A CN201310310167A CN103395750B CN 103395750 B CN103395750 B CN 103395750B CN 201310310167 A CN201310310167 A CN 201310310167A CN 103395750 B CN103395750 B CN 103395750B
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- acid
- hydrogen sulfide
- sulfuric acid
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- incinerator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The present invention relates to and a kind of associating with hydrogen sulfide for Waste Sulfuric Acid burn acid-making process and incinerator used, comprise the following steps: (1): adopted by the Waste Sulfuric Acid of refinery by-product concentration>=75% high-pressure pump conveying machinery to be atomized the mode combined with pressurized air assisted atomization and described Waste Sulfuric Acid is atomized form acid mist, particle diameter≤80um; (2): the hydrogen sulfide of refinery by-product concentration 0 ~ 50% is mixed with warm air in swirling inlet mouth and fully makes mixed gas; (3): acid mist adopts spent acid spray gun to spray in incinerator, simultaneously described hydrogen sulfide and warm air mixed gas adopt hydrogen sulfide spray gun to spray in incinerator to carry out burn, cracking and reduction reaction generate SO
2furnace gas, SO
2furnace gas reclaims after heat through waste heat boiler and enters acid making system.This reaction process acid mist particle diameter≤80um, and simultaneously passing in incinerator, various reaction can be made to carry out fully complete, reduce calorific loss to greatest extent, the product of generation reaches the requirement of follow-up acid-making process simultaneously.
Description
Technical field
The present invention relates to and a kind of associating with hydrogen sulfide for Waste Sulfuric Acid burn acid-making process and incinerator used, belong to technical field of environmental protection in chemical industry.
Background technology
Employing Waste Sulfuric Acid, hydrogen sulfide sour gas had the report of practical application respectively as raw material relieving haperacidity technology, but also there is atomization undercompounding, and not exclusively, follow-up equipment easily blocks, easily produce the defects such as sublimed sulphur in reaction.And adopt Waste Sulfuric Acid to combine the technique of burning relieving haperacidity with hydrogen sulfide to have no report.To combine with hydrogen sulfide at Waste Sulfuric Acid in the technological process of burning relieving haperacidity, the heat utilizing hydrogen sulfide to burn to produce maintains incinerator temperatures as high 950 DEG C ~ 1180 DEG C, the burning of reactant, cracking and reduction reaction process are carried out simultaneously in stove, make Waste Sulfuric Acid, hydrogen sulfide is generated as containing SO
2, SO
3deng the furnace gas of composition, improve the concentration of sulfurous gas, advantageously in follow-up acid making system.Solve Waste Sulfuric Acid atomization uneven simultaneously, air mix with hydrogen sulfide the defect such as uneven cause react insufficient, follow-up equipment easily blocks, the problem of influential system operational stability.
Summary of the invention
Technical problem to be solved by this invention is to provide burns acid-making process and incinerator used a kind of associating with hydrogen sulfide for Waste Sulfuric Acid, overcome Waste sulfuric acid of the prior art atomization uneven, mix with hydrogen sulfide the defect such as uneven cause react insufficient, produce sublimed sulphur, the susceptible to plugging defect of follow-up equipment.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of Waste Sulfuric Acid that is used for combines burning acid-making process with hydrogen sulfide, it is characterized in that, comprises the following steps:
Step (1): adopted by the Waste Sulfuric Acid of refinery by-product concentration >=75% high-pressure pump conveying machinery to be atomized the mode combined with pressurized air assisted atomization and described Waste Sulfuric Acid is atomized form acid mist, described acid mist particle diameter≤80um; Described acid mist particle diameter preferable range is≤25um.
Step (2): the hydrogen sulfide of refinery by-product concentration 0 ~ 50% is mixed with warm air in swirling inlet mouth and fully makes hydrogen sulfide and warm air mixed gas;
Step (3): described acid mist adopts spent acid spray gun to spray in incinerator, simultaneously described hydrogen sulfide and warm air mixed gas adopt hydrogen sulfide spray gun to spray in incinerator to carry out burn, cracking and reduction reaction generate SO
2furnace gas, described SO
2furnace gas reclaims after heat through waste heat boiler and enters acid making system.
The invention has the beneficial effects as follows: described Waste Sulfuric Acid is atomized form acid mist because the Waste Sulfuric Acid that have employed concentration>=75% adopts high-pressure pump conveying machinery to be atomized the mode combined with pressurized air assisted atomization, described acid mist particle diameter≤80um, and adopt hydrogen sulfide spray gun to spray in incinerator to carry out with described hydrogen sulfide and warm air mixed gas burn, cracking and reduction reaction generate SO
2furnace gas, this reaction process acid mist particle diameter≤80um, and simultaneously passing in incinerator, various reaction can be made to carry out fully complete, reduce calorific loss to greatest extent, the product of generation can reach the requirement of follow-up acid-making process simultaneously.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described incineration temperature is 950 DEG C ~ 1180 DEG C.
Further, sulphur or Sweet natural gas 0 ~ 1500Nm is passed into when described step (3) is burned
3/ h, keeps incineration temperature to be 950 DEG C ~ 1180 DEG C.
Adopt the beneficial effect of above-mentioned further scheme to be: when hydrogen sulfide burns, sulphur or Sweet natural gas can be passed into when temperature can not maintain 950 DEG C ~ 1180 DEG C and both ensured to maintain stable burning and stablize, ensure fully to burn, can SO be increased again
2furnace gas enters follow-up process for preparing sulfuric acid system.
Further, the warm air in described step (2) is high-temperature furnace gas after waste heat boiler by ambient air by interchanger indirect heat exchange to 450 DEG C ~ 600 DEG C.
The present invention also provides a kind of associating with hydrogen sulfide for Waste Sulfuric Acid to burn acid-making process incinerator used, and described incinerator comprises carbon steel or stainless steel furnace shell, is provided with heat-resisting liner brickwork, is provided with thermal insulation layer outside it inside described carbon steel or stainless steel furnace shell; Described carbon steel or stainless steel furnace shell is horizontal type structure, and its front end is provided with Waste Sulfuric Acid import, hydrogen sulfide import, cleaning eye, and rear end is provided with furnace gas export; Described carbon steel or stainless steel furnace shell inside is provided with at least four road baffling barricades; The upper end of described carbon steel or stainless steel furnace shell is provided with explosionproof hole, thermometer boss, pressure tap.
The invention has the beneficial effects as follows: in this equipment stove, be provided with at least four road baffling barricades, can make mix Waste Sulfuric Acid droplet mix with hydrogen sulfide evenly, adaptability is good; Can bear high-temperature load, safety performance is good; Chemical reaction carries out thoroughly, and no waste remains; Dependable performance, easy to operate.
Further, described thermometer boss is at least five.
Further, described carbon steel or stainless steel furnace shell side is provided with manhole and visor.
Further, described explosionproof hole is arranged on the both sides of the upper end of described carbon steel or stainless steel furnace shell.
Further, one fuel feed inlet is all set in the front end of described incinerator, upper end, rear end.
Further, described fuel feed inlet is molten sulfur or Imported gas.
Accompanying drawing explanation
Fig. 1 is that the present invention burns acid-making process incinerator structural representation used a kind of associating with hydrogen sulfide for Waste Sulfuric Acid;
In accompanying drawing, the list of parts representated by each label is as follows:
1, carbon steel or stainless steel furnace shell, 2, the thorough body of heat-resisting liner, 3, cleaning eye, 4, molten sulfur (or Sweet natural gas) import, 5, hydrogen sulfide import, 6, Waste Sulfuric Acid import, 7, explosionproof hole, 8, thermometer boss, 9, pressure tap, 10, baker intensification fuel inlet, 11, furnace gas export, 12, thermal insulation layer, 13, visor, 14, manhole, 15, baffling barricade.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1
A kind of Waste Sulfuric Acid that is used for combines burning acid-making process with hydrogen sulfide, comprises the following steps:
Step (1): adopted by the Waste Sulfuric Acid of refinery by-product concentration 75% high-pressure pump conveying machinery to be atomized the mode combined with pressurized air assisted atomization and described Waste Sulfuric Acid is atomized form acid mist, described acid mist particle diameter 20 ~ 80um;
Step (2): the hydrogen sulfide of refinery by-product concentration 30% is mixed with warm air in swirling inlet mouth and fully makes hydrogen sulfide and warm air mixed gas;
Step (3): described acid mist adopts spent acid spray gun to spray in incinerator, simultaneously described hydrogen sulfide and warm air mixed gas adopt hydrogen sulfide spray gun to spray in incinerator to carry out burn, cracking and reduction reaction generate SO
2furnace gas, described SO
2furnace gas reclaims after heat through waste heat boiler and enters acid making system.
Described step (3) passes into sulphur or Sweet natural gas 1500Nm when burning
3/ h, keeps incineration temperature to be 980 DEG C ~ 1000 DEG C, the working pressure 300Pa in incinerator.
Embodiment 2
A kind of Waste Sulfuric Acid that is used for combines burning acid-making process with hydrogen sulfide, comprises the following steps:
Step (1): adopted by the Waste Sulfuric Acid of refinery by-product concentration 85% high-pressure pump conveying machinery to be atomized the mode combined with pressurized air assisted atomization and described Waste Sulfuric Acid is atomized form acid mist, described acid mist particle diameter 10 ~ 50um;
Step (2): the hydrogen sulfide of refinery by-product concentration 35% is mixed with warm air in swirling inlet mouth and fully makes hydrogen sulfide and warm air mixed gas;
Step (3): described acid mist adopts spent acid spray gun to spray in incinerator, simultaneously described hydrogen sulfide and warm air mixed gas adopt hydrogen sulfide spray gun to spray in incinerator to carry out burn, cracking and reduction reaction generate SO
2furnace gas, described SO
2furnace gas reclaims after heat through waste heat boiler and enters acid making system.
Described step (3) passes into sulphur or Sweet natural gas 800Nm when burning
3/ h, keeps incineration temperature to be 950 DEG C ~ 1100 DEG C.
Embodiment 3
A kind of Waste Sulfuric Acid that is used for combines burning acid-making process with hydrogen sulfide, comprises the following steps:
Step (1): adopted by the Waste Sulfuric Acid 30kt/a of refinery by-product concentration 95% high-pressure pump conveying machinery to be atomized the mode combined with pressurized air assisted atomization and described Waste Sulfuric Acid is atomized form acid mist, described acid mist particle diameter 15 ~ 60um;
Step (2): by the hydrogen sulfide 2000Nm of refinery by-product concentration 20%
3/ h and warm air mix in swirling inlet mouth fully makes hydrogen sulfide and warm air mixed gas; Described warm air is high-temperature furnace gas after waste heat boiler by ambient air by interchanger indirect heat exchange to 450 DEG C ~ 600 DEG C
Step (3): described acid mist adopts spent acid spray gun to spray in incinerator, simultaneously described hydrogen sulfide and warm air mixed gas adopt hydrogen sulfide spray gun to spray in incinerator to carry out burn, cracking and reduction reaction generate SO
2furnace gas, described SO
2furnace gas reclaims after heat through waste heat boiler and enters acid making system.
Described step (3) passes into sulphur or Sweet natural gas 100Nm when burning
3/ h, keeps incineration temperature to be 1000 DEG C ~ 1180 DEG C, the working pressure 100Pa in incinerator.
Work in budget year 8000 hours, 100% sulfuric acid 46.9kt/a can be produced.
As shown in Figure 1, a kind of associating with hydrogen sulfide for Waste Sulfuric Acid burns acid-making process incinerator used, and described incinerator comprises carbon steel or stainless steel furnace shell 1, is provided with heat-resisting liner brickwork 2, is provided with thermal insulation layer 12 outside it inside described carbon steel or stainless steel furnace shell 1; Described carbon steel or stainless steel furnace shell 1 is the tubular structure of horizontal type structure, and the internal diameter of incinerator is 4300mm, length 18500mm, and its front end is provided with Waste Sulfuric Acid import 6, hydrogen sulfide import 5, cleaning eye 3, and rear end is provided with furnace gas export 11; Described carbon steel or stainless steel furnace shell 1 inside is provided with at least four road baffling barricades 15; The upper end of described carbon steel or stainless steel furnace shell 1 is provided with explosionproof hole 7, thermometer boss 8, pressure tap 9.
Described thermometer boss is at least five.Described carbon steel or stainless steel furnace shell side is provided with manhole 14 and visor 13.Described explosionproof hole 7 is arranged on the both sides of the upper end of described carbon steel or stainless steel furnace shell; In the front end of described incinerator, upper end, rear end, one fuel feed inlet is all set; Described fuel feed inlet is molten sulfur or Imported gas 4 and baker intensification fuel inlet 10.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. combine a burning acid-making process for Waste Sulfuric Acid with hydrogen sulfide, it is characterized in that, comprise the following steps:
Step (1): adopted by the Waste Sulfuric Acid of refinery by-product concentration >=75% high-pressure pump conveying machinery to be atomized the mode combined with pressurized air assisted atomization and described Waste Sulfuric Acid is atomized form acid mist, described acid mist particle diameter≤80um;
Step (2): the hydrogen sulfide of refinery by-product concentration 0 ~ 50% is mixed with warm air in swirling inlet mouth and fully makes hydrogen sulfide and warm air mixed gas;
Step (3): described acid mist adopts spent acid spray gun to spray in incinerator, simultaneously described hydrogen sulfide and warm air mixed gas adopt hydrogen sulfide spray gun to spray in incinerator to carry out burn, cracking and reduction reaction generate SO
2furnace gas, described SO
2furnace gas reclaims after heat through waste heat boiler and enters acid making system.
2. a kind of Waste Sulfuric Acid that is used for combines burning acid-making process with hydrogen sulfide according to claim 1, and it is characterized in that, described incineration temperature is 950 DEG C ~ 1180 DEG C.
3. according to claim 1 or 2, a kind of Waste Sulfuric Acid that is used for combines burning acid-making process with hydrogen sulfide, it is characterized in that, passes into sulphur or Sweet natural gas 0 ~ 1500Nm when described step (3) is burned
3/ h, keeps incineration temperature to be 950 DEG C ~ 1180 DEG C; Working pressure 0 ~ 300Pa in incinerator.
4. according to claim 1 or 2, a kind of Waste Sulfuric Acid that is used for combines burning acid-making process with hydrogen sulfide, it is characterized in that, the warm air in described step (2) is high-temperature furnace gas after waste heat boiler by ambient air by interchanger indirect heat exchange to 450 DEG C ~ 600 DEG C.
5. to combine with hydrogen sulfide for Waste Sulfuric Acid and burn an acid-making process incinerator used, it is characterized in that, described incinerator comprises carbon steel or stainless steel furnace shell, is provided with heat-resisting liner brickwork, is provided with thermal insulation layer outside it inside described carbon steel or stainless steel furnace shell; Described carbon steel or stainless steel furnace shell is horizontal type structure, and its front end is provided with Waste Sulfuric Acid import, hydrogen sulfide import, cleaning eye, and rear end is provided with furnace gas export; Described carbon steel or stainless steel furnace shell inside is provided with at least four road baffling barricades; The upper end of described carbon steel or stainless steel furnace shell is provided with explosionproof hole, thermometer boss, pressure tap.
6. a kind of associating with hydrogen sulfide for Waste Sulfuric Acid burns acid-making process incinerator used according to claim 5, and it is characterized in that, described thermometer boss is at least five.
7. a kind of associating with hydrogen sulfide for Waste Sulfuric Acid burns acid-making process incinerator used according to claim 5, it is characterized in that, described carbon steel or stainless steel furnace shell side is provided with manhole and visor.
8. a kind of associating with hydrogen sulfide for Waste Sulfuric Acid burns acid-making process incinerator used according to claim 5, and it is characterized in that, described explosionproof hole is arranged on the two ends of the upper end of described carbon steel or stainless steel furnace shell.
9. a kind of associating with hydrogen sulfide for Waste Sulfuric Acid burns acid-making process incinerator used according to claim 5, it is characterized in that, all arranges a fuel feed inlet in the front end of described incinerator, upper end, rear end.
10. a kind of associating with hydrogen sulfide for Waste Sulfuric Acid burns acid-making process incinerator used according to claim 9, and it is characterized in that, described fuel feed inlet is molten sulfur or Imported gas.
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| CN201310310167.3A CN103395750B (en) | 2013-07-22 | 2013-07-22 | A kind of associating with hydrogen sulfide for Waste Sulfuric Acid burns acid-making process and incinerator used |
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| CN201310310167.3A CN103395750B (en) | 2013-07-22 | 2013-07-22 | A kind of associating with hydrogen sulfide for Waste Sulfuric Acid burns acid-making process and incinerator used |
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| CN103395750B true CN103395750B (en) | 2016-02-24 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103979502B (en) * | 2014-04-30 | 2015-11-11 | 上海倍能化工技术有限公司 | The sulfuric acid of Waste Sulfuric Acid renovation process and gained |
| CN104229746B (en) * | 2014-09-18 | 2016-01-27 | 中石化南京工程有限公司 | A kind of alkylation spent acid sulphur method |
| CN106554001A (en) * | 2015-09-29 | 2017-04-05 | 中国石油化工集团公司 | A kind of acid-making process of comprehensive utilization hydrogen sulfide waste gas and Waste Sulfuric Acid |
| CN105668524B (en) * | 2016-03-24 | 2018-05-22 | 惠州宇新化工有限责任公司 | A kind of processing method of Waste Sulfuric Acid |
| CN108019764A (en) * | 2016-11-02 | 2018-05-11 | 天津天控科技有限公司 | A kind of sludge incineration device |
| CN106744715B (en) * | 2016-11-22 | 2019-03-19 | 惠州宇新化工有限责任公司 | A kind of cleavage method being segmented free-standing spent acid pyrolysis furnace and Waste Sulfuric Acid |
| CN107559844A (en) * | 2017-09-01 | 2018-01-09 | 陕西未来能源化工有限公司 | A kind of pulverized-coal fired boiler mixes the system and method for burning organic compound |
| CN110844889A (en) * | 2019-11-25 | 2020-02-28 | 宜宾海翔化工有限责任公司 | Method and device for jointly preparing acid by sulfuric acid tail gas and waste gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102371108A (en) * | 2010-08-20 | 2012-03-14 | 中国石油化工集团公司 | Method for producing sulfuric acid by oxygen-enriched air incineration of acid gas containing hydrogen sulfide |
| CN102092688A (en) * | 2011-02-12 | 2011-06-15 | 李金山 | Technological process for producing acid with sulfur-containing gas |
| CN203428910U (en) * | 2013-07-22 | 2014-02-12 | 江苏永纪化工设备有限公司 | Incineration furnace for waste sulfuric acid and hydrogen sulfide joint incineration acid preparation process |
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Address after: 225117 Fangxiang Town Industrial Concentration Zone, Yangzhou City, Jiangsu Province Patentee after: Jiangsu Yongji Industrial Group Co., Ltd. Address before: 225117 No. 1 Fengming Avenue, Fangxiang Town Industrial Concentration Zone, North Suburb of Yangzhou City, Jiangsu Province Patentee before: Jiangsu Yongji Chemical Equipment Co., Ltd. |