GB785398A - The method for indirectly heating a fluid - Google Patents
The method for indirectly heating a fluidInfo
- Publication number
- GB785398A GB785398A GB30882/55A GB3088255A GB785398A GB 785398 A GB785398 A GB 785398A GB 30882/55 A GB30882/55 A GB 30882/55A GB 3088255 A GB3088255 A GB 3088255A GB 785398 A GB785398 A GB 785398A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bed
- banks
- fluid
- heated
- fluidized
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B7/00—Combustion techniques; Other solid-fuel combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D13/00—Heat-exchange apparatus using a fluidised bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B2700/00—Combustion apparatus for solid fuel
- F23B2700/023—Combustion apparatus for solid fuel with various arrangements not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
<PICT:0785398/III/1> <PICT:0785398/III/2> In the boiler shown, water or other fluid flowing through tube banks 36 is heated by the fluidized bed 14 in which the banks are immersed. The particles of the bed comprise a catalytic material and fuel entering the base of the bed through a pipe 32, a distributer 30 and perforated pipes 34 is oxidized, and consequently consumed, solely by the catalytic oxidation action of the bed material. The material is kept at a catalytically active temperature by heating the air which maintains the bed in a fluidized condition. For this purpose air is forced by a blower 17 up through the bed - entering the latter through a perforated base-plate 12-after being heated to a desired temperature by a burner 18 which is supplied with fuel and air through valve - controlled lines 20, 22 respectively. Gaseous, liquid or pulverized fuel may be supplied to the bed through pipe 32. The water or fluid to be heated is passed to the banks 36 through tubes 42 from a header 38 which is divided into three sections each communicating with a fluid feed conduit 44 through a valve 46. Each tube 42 is provided with a metering device at its inlet. The heated fluid flows from the banks 36 through further tubes 42 to a header 40. The banks 36 are connected to the headers so that the direction of fluid flow across the bed through adjacent banks is respectively reversed. The combustion gases arising from the bed may be conveyed over additional heat exchange surface or passed through a fluidized bed of inert material within which a heat exchange surface is disposed. The combustion gases may be passed through a cyclone separator. Particles of fused silica, sands, clays, &c. may be added to the fluidized catalytic bed. The material forming the bed may comprise activated forms of metal oxides such as alumina, beryllia, thoria, zirconia, or magnesia, or mixtures of these oxides, impregnated with minor amounts of finely divided metals such as platinum, palladium, rhodium, ruthenium, silver, copper, chromium, manganese, nickel, cobalt, or combinations of these metals such as a silverchromium, copper - chromium, copper - manganese combination. Gamma alumina may be prepared from natural bauxite by removing the impurities such as iron and silicates then heating at a temperature below about 2000 DEG F. to drive off the combined water. The amount of metal when impregnating with a silver-chromium combination to form a suitable catalyst is from 2 per cent to 5 per cent by weight based on the weight of the activated metal oxide. In a described example, a bed consists of pellets of activated alumina impregnated with 0.2 per cent by weight of platinum, the pellets being in the shape of cylinders having a diameter and length of about 0.086 inch.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US785398XA | 1954-11-16 | 1954-11-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB785398A true GB785398A (en) | 1957-10-30 |
Family
ID=22144682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30882/55A Expired GB785398A (en) | 1954-11-16 | 1955-10-28 | The method for indirectly heating a fluid |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB785398A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2174047A1 (en) * | 1972-03-02 | 1973-10-12 | Plessey Handel Investment Ag | |
GB2126493A (en) * | 1982-09-08 | 1984-03-28 | Inst Kataliza Sibirskogo Otdel | Fluidised catalytic combustion |
GB2187397A (en) * | 1986-03-04 | 1987-09-09 | Boc Group Plc | Combustion method |
CN114485226A (en) * | 2020-10-23 | 2022-05-13 | 中国石油化工股份有限公司 | Self-cleaning fluidized bed heat exchanger |
-
1955
- 1955-10-28 GB GB30882/55A patent/GB785398A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2174047A1 (en) * | 1972-03-02 | 1973-10-12 | Plessey Handel Investment Ag | |
GB2126493A (en) * | 1982-09-08 | 1984-03-28 | Inst Kataliza Sibirskogo Otdel | Fluidised catalytic combustion |
GB2187397A (en) * | 1986-03-04 | 1987-09-09 | Boc Group Plc | Combustion method |
CN114485226A (en) * | 2020-10-23 | 2022-05-13 | 中国石油化工股份有限公司 | Self-cleaning fluidized bed heat exchanger |
CN114485226B (en) * | 2020-10-23 | 2024-03-26 | 中国石油化工股份有限公司 | Self-cleaning fluidized bed heat exchanger |
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