GB1470335A - Gas to gas heat exchangers - Google Patents
Gas to gas heat exchangersInfo
- Publication number
- GB1470335A GB1470335A GB4037576A GB4037576A GB1470335A GB 1470335 A GB1470335 A GB 1470335A GB 4037576 A GB4037576 A GB 4037576A GB 4037576 A GB4037576 A GB 4037576A GB 1470335 A GB1470335 A GB 1470335A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- heated
- conduits
- heat exchanger
- heat exchange
- 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.)
- Expired
Links
- 239000007789 gas Substances 0.000 abstract 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
Classifications
-
- 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
- C01B17/80—Apparatus
- C01B17/806—Absorbers; Heat exchangers
-
- 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
- C01B17/765—Multi-stage SO3-conversion
- C01B17/7655—Multi-stage SO3-conversion with intermediate absorption
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Chimneys And Flues (AREA)
Abstract
1470335 Heat exchangers RALPH M PARSONS CO 19 April 1974 [23 April 1973] 40375/76 Divided out of 1470334 Heading F4S In a heat exchanger in which one gas flows through a casing 12 in heat exchange with another gas flowing through a plurality of heat exchange conduits 30 (e.g. tubes or spaced plates) extending through said casing, means (shown as baffles 42) are provided to maintain a stagnant or quiescent zone 44 of relatively hot gas adjacent the point of entry of the cooler of the two gas streams into the heat exchanger. The stagnant zone 44 of relatively hot gas maintains the heat exchange surfaces above the dew point of the gases to inhibit corrosion. In Fig. 1 the cooler gas flows over the conduits 30 and is thereby heated. The stagnant zone 44 of this gas is however sufficiently heated by the heating gas passing out of the conduits 30 to maintain the heat exchange surfaces above the dew point of the gases. In Fig. 2, the cooler gas flows through the conduits 30 and is thereby heated, the stagnant zone 44 being supplied via the duct 48 from the hot gas inlet 24. As shown in Fig. 2, heat insulating material 20 may encase the heat exchanger. The apparatus is particularly intended for use in a process for the manufacture of sulphuric acid or oleum as described e.g. in Specification 1,470,334 wherein the gas which is to be heated, enters the heat exchanger through a conduit 10 itself heated by coils 14.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US35336473A | 1973-04-23 | 1973-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1470335A true GB1470335A (en) | 1977-04-14 |
Family
ID=23388791
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1728074A Expired GB1470334A (en) | 1973-04-23 | 1974-04-19 | Process and apparatus for prevention of corrosion in a multiple contact-multiple absorption sulphuric acid manufacturing operation |
| GB4037576A Expired GB1470335A (en) | 1973-04-23 | 1974-04-19 | Gas to gas heat exchangers |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1728074A Expired GB1470334A (en) | 1973-04-23 | 1974-04-19 | Process and apparatus for prevention of corrosion in a multiple contact-multiple absorption sulphuric acid manufacturing operation |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5942236B2 (en) |
| BE (1) | BE814042A (en) |
| CA (1) | CA1079481A (en) |
| DE (1) | DE2419096A1 (en) |
| FR (1) | FR2226358B3 (en) |
| GB (2) | GB1470334A (en) |
| IT (1) | IT1011766B (en) |
| NL (1) | NL7405426A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767044A (en) * | 2017-03-02 | 2017-05-31 | 洛阳明远石化技术有限公司 | For the flue gas air cooler of catalytic reforming unit |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56151334U (en) * | 1980-04-14 | 1981-11-13 | ||
| JPS57199279A (en) * | 1981-06-01 | 1982-12-07 | Toshiba Corp | Semiconductor luminous element and manufacture thereof |
| DK155723C (en) * | 1982-03-25 | 1989-10-09 | Haldor Topsoe As | METHOD AND APPARATUS FOR Sulfuric Acid Preparation |
| DE102006016786A1 (en) * | 2006-04-10 | 2007-10-18 | Triesch, Frank, Dr.-Ing. | Heat exchanger for heating or cooling of fluid flow, comprising internal or external bypass for continuous partial stream and heat carrying fluid flow |
| JP2008069053A (en) * | 2006-09-15 | 2008-03-27 | Japan Atomic Energy Agency | Heat exchanger having sulfuric acid decomposing function and so3 decomposing function and utilizing mist evaporation |
| US8926936B2 (en) * | 2011-04-06 | 2015-01-06 | Haldor Topsoe A/S | Process for production of sulphuric acid |
| DE102015112220A1 (en) | 2015-07-27 | 2017-02-02 | Outotec (Finland) Oy | Method and system for cooling a SO 2 and / or SO 3 and traces of water containing gas |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1933460C3 (en) * | 1969-07-02 | 1973-11-15 | Metallgesellschaft Ag, 6000 Frankfurt | Device for intermediate absorption and heat exchange during the catalytic conversion of gases containing SO deep 2 with the production of sulfuric acid |
-
1974
- 1974-04-03 CA CA196,729A patent/CA1079481A/en not_active Expired
- 1974-04-18 JP JP49042828A patent/JPS5942236B2/en not_active Expired
- 1974-04-19 GB GB1728074A patent/GB1470334A/en not_active Expired
- 1974-04-19 GB GB4037576A patent/GB1470335A/en not_active Expired
- 1974-04-20 DE DE19742419096 patent/DE2419096A1/en not_active Withdrawn
- 1974-04-22 NL NL7405426A patent/NL7405426A/xx not_active Application Discontinuation
- 1974-04-22 IT IT6828374A patent/IT1011766B/en active
- 1974-04-22 BE BE143489A patent/BE814042A/en not_active IP Right Cessation
- 1974-04-23 FR FR7414046A patent/FR2226358B3/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767044A (en) * | 2017-03-02 | 2017-05-31 | 洛阳明远石化技术有限公司 | For the flue gas air cooler of catalytic reforming unit |
| CN106767044B (en) * | 2017-03-02 | 2023-05-16 | 洛阳明远石化技术有限公司 | Flue gas air cooler for catalytic reforming device |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1079481A (en) | 1980-06-17 |
| FR2226358B3 (en) | 1977-03-04 |
| IT1011766B (en) | 1977-02-10 |
| BE814042A (en) | 1974-08-16 |
| GB1470334A (en) | 1977-04-14 |
| NL7405426A (en) | 1974-10-25 |
| FR2226358A1 (en) | 1974-11-15 |
| JPS509593A (en) | 1975-01-31 |
| JPS5942236B2 (en) | 1984-10-13 |
| DE2419096A1 (en) | 1974-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |