GB2203419A - Method of starting a plant for manufacturing sulfuric acid - Google Patents
Method of starting a plant for manufacturing sulfuric acid Download PDFInfo
- Publication number
- GB2203419A GB2203419A GB08709020A GB8709020A GB2203419A GB 2203419 A GB2203419 A GB 2203419A GB 08709020 A GB08709020 A GB 08709020A GB 8709020 A GB8709020 A GB 8709020A GB 2203419 A GB2203419 A GB 2203419A
- Authority
- GB
- United Kingdom
- Prior art keywords
- starting
- plant
- sulfuric acid
- air
- furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
- B01D53/8609—Sulfur oxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
-
- 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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Air Supply (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Description
A k t, 2203419 Method of starting a plant for manufacture sulfuric acid
The subject of the present Invention is a method of star- ting' a plant for manufacture of sulfuric acid by catalytic 0 oxidation o.,10 502 t c W3 lrom gases generated when desulfurlzing. flue gases from power boilers A known method of starting the plant consists in atplicaticn of a startininstallation composed of a furnace for combusting the fuel gas cr oil in air and of a starting heat exhanSer, where the air for combusting the gas or oil as well as the air for cooling the flue gases to a temperature c10 about 6550 0 c,,rior to their intreductlon to the startinG exchanSer is beIng fed through one fan.
In the course of heating tlae starting furnace and d=ing keeping the starting installation warms the air from "the blower of the sulfuric acid plant is being supplied to the starting ex- eh-anger to prevent its overheating and then this air Is let off to the atmosphere. The flue gases the temperature of which is of 3000C are also let off from the starting heat exchanger to the atmosphere.
It Is a disadvantage of the known method that the consumption of oil or gas is high gnd the t,'iernal,efiOiciency of the Installa' = ',ie - art.!, .u6 e..ci:ian6er tion, is low be-V---use the 1_ m j W A4 1 2 to the atmosphere has a temperature of 200 0-3000 0 and tb. flue gases going out of the exchanger to the atmosphere have a temparature of 3000 - 40000 These dJsadvantagtys are eliminated by the soMition according to the present invention the essence of which consists in that. in the period of starting t-he starting installation and keeping it.jamg the air protecting the startinj- heat exchanger the moment It has left this heat exchanger is directed to the startins furnace as secondary air in oreder to obtain the required temperature of 6000 - 6500C of the flue gases before the heat exchanger In front of the starting exchanger the-air is directed to a cooling jacket of the starting furnaces Joreover. the fl.ue gases from tLe stuarting exchanger are partly recycled to the starting '1ur"-ace in order to obtain the proper te=Derature before the heat exchanger The advantage o'L the solution according to the present invention is a considerable reduction in the consumption o'L fuel gas or fuel oil amounting to at least 50 per cents It is an additional advantage of the solution that It provides for reduction of the amount of flue gases emitted to the atmosphere or directed to special installations for cleaning them-of S02 whenever the gas or oil contains sulfur compounds A scheme of the starting installation for realization of the method according to the present invention is shown In the en closed Figure The gas or oil is burnt In the 'Lurnace 1 to which air is supp lied from the fan 4. 'Flue gazes in 'he , " - v U 1 nace 2 having a temperatútre of 1300 0 - 160000 are being cooled at the autlet of the furnace to a temperature of 0 5000. - 700009 mostly to that of 650 01 by means of mixing them with the air pre-heated in the starting exchanger and then. they pass through the starting heat exchanger from where they are taken off to the atmosphere via the conduit " Waking an additional use of heat of the flue gases after the exchanger 3, a portion of these flue gases is directed via the air pipe 10 to the starting furnace 2 In the course of starting the starting, Installation and Keeping it warm tile fan forces the air through the pipe 6 to the cooling jacket 14 of the furnace 2 and from where the air is directed via the conduit 2 to the startint heat exchanger 3 from which it is recycled to the starting furnace through the conduits 8 and 10 In the:eriod of heating the technological gases which are to be directed to the converter, the heating being effected in the starting hest exchanger, the conduits 7 and 6 are closed and the required amount of secondary air is directed to the furnace through the conduit 2 and 10- The solution according to the present Invention can be also applied to other installations$ where flue gases received from combusting the oil. gas or coal are utilized for heating the alre water or other media _; 1 C L A I M S
A method of starting a plant for manufacture of sul- furic acid by a catalytic oxidation of 502 to SO 3 and by the absorption of SO consisting In heating of this plant 3 by means of flue gases generated as a result of burning the gas or fuel oil in the starting installation, wherein in the course of starting the starting installation andrkeep ing- It warm. the air protecting- the starting heat exchan ger /J/ the moment it has left this heat exchanger is di rected to the starting furnace /g/ as secondary air in order to obtain the required temperature of flue gases be f ore the heat exchanger 2, A method of starting a plant for manufacture of sulfuric acid according to claim 1, wherein the air prior to being Introduced to the starting exchanger /J/ is pre-hea- 1 ted in the cooling jacket /jj/ of the starting furnace oi 3, A me thod of starting a plant for manCacture of sulfuric acid according to claim l, wherein the flue gases which leave the starting furnace lgl after having been passed through the starting heat exchanger /1/ are partly recycled to the starting furnace /?,/ 4. A method of starting a plant for manufacture of sulfuric acid# substantially as hereinbefore described with reference to the accompanying drawing.
Published 1988 at The Patent Office, State House, 66M High Holborn, London WC1R 4TP. Further copies may be obtained from The Patent Office, Sales Branch, St Mary Cray. Orpington, Kent BR5 3RD. Printed by Multiplex techniques ltd, St Mary Cray, Kent. Con. 1187.
1
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8709020A GB2203419B (en) | 1987-04-15 | 1987-04-15 | Method of starting a heating plant. |
DE19873713220 DE3713220A1 (en) | 1987-04-15 | 1987-04-18 | METHOD FOR STARTING UP A SULFURIC ACID SYSTEM |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8709020A GB2203419B (en) | 1987-04-15 | 1987-04-15 | Method of starting a heating plant. |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8709020D0 GB8709020D0 (en) | 1987-05-20 |
GB2203419A true GB2203419A (en) | 1988-10-19 |
GB2203419B GB2203419B (en) | 1991-05-08 |
Family
ID=10615870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8709020A Expired - Fee Related GB2203419B (en) | 1987-04-15 | 1987-04-15 | Method of starting a heating plant. |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3713220A1 (en) |
GB (1) | GB2203419B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110327849A (en) * | 2019-08-13 | 2019-10-15 | 阳煤丰喜肥业(集团)有限责任公司 | A kind of transformation catalyst elevated temperature cure system |
-
1987
- 1987-04-15 GB GB8709020A patent/GB2203419B/en not_active Expired - Fee Related
- 1987-04-18 DE DE19873713220 patent/DE3713220A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110327849A (en) * | 2019-08-13 | 2019-10-15 | 阳煤丰喜肥业(集团)有限责任公司 | A kind of transformation catalyst elevated temperature cure system |
Also Published As
Publication number | Publication date |
---|---|
GB8709020D0 (en) | 1987-05-20 |
GB2203419B (en) | 1991-05-08 |
DE3713220A1 (en) | 1988-10-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |