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1.发明专利
公开(公告)号：GB901682A
公开(公告)日：1962-07-25
申请号：GB1135359
申请日：1959-04-03
Applicant: BASF AG
Inventor： BARTHOLOME ERNEST , NONNENMACHER HELMUT , BALZ DIETRICH
Abstract: In a process wherein a granular solid is passed downwardly in dense phase through a reaction zone in counter-current to a gaseous reactant, at least the lower part of said zone is in the form of a plurality of streams which are subsequently reunited and recycled to said zone, the gaseous reactant as such or as a liquid is introduced into said streams and the quantities of the solids in the individual streams are externally regulated so that the ratio of the velocity of the solids to the velocity of the gases is uniform over the entire cross-section of said reaction zone. Preferably the gases have the same velocity at a given distance above the point of introduction in each of said streams. The flow of solids can be regulated by means of slides or screens or, as illustrated, by individually controlling the conical heaps of solids formed at the point where said streams reunite. In Fig. 1, streams C and D are regulated by altering the effective length of conduits 13, 14 by means of extension tubes 4, 5 which pass through the cover 3 of a collecting vessel 1 in which said streams reunite. Corrugated tubes 17, 18, 19, 20 prevent gas leakage while permitting movement of the extension tubes. Fig. 3 illustrates the use of a similar apparatus in a complete plant; in this case, as in an example, the conduits 29, 30 for the individual streams converge at their entry into the collecting vessel 1. The reactant, a hydrocarbon to be cracked, in the form of a liquid or gas, is introduced into dead spaces provided in dense phase corundum particles at 31, 32 and the product containing unsaturated compounds including ethylene and acetylene is withdrawn through line 33. (The reactant gas may alternatively be introduced above the conical heaps in the collecting vessel). After reuniting the streams in the collector vessel 1, the solids are recirculated through line 38 by means of a lift gas to separating vessel 39. The solids are then passed to regenerator 24 in which deposits are burnt off and the solids preheated to 600 DEG - 1,300 DEG C. by means of fuel supplied with an excess of air to a combustion chamber 21. Pipes 27, 34 and 35 are provided to supply sealing steam at these points.ALSO: Figs. 1 and 3 illustrate a process wherein granular corundum is passed downwardly in dense phase through a reaction zone 28 in counter-current to a hydrocarbon gas to be cracked and at least the lower part of said zone is in the form of a plurality of streams 29, 30. Said streams are subsequently reunited and recycled to said zone through line 38 by means of a lift gas to separating vessel 39. The solids are then passed to regenerator 24 in which deposits are burnt off and the solids preheated to 600 DEG -1300 DEG C. by means of fuel supplied with an excess of air to a combustion chamber 21. Pipes 27, 34 and 35 supply sealing steam. The gaseous reactant as such or as a liquid is introduced into said streams at 31, 32 and the product containing ethylene and acetylene is withdrawn through line 33. The quantities of the solids in the individual streams are externally regulated so that the ratio of the velocity of the solids to the velocity of the gases is uniform over the entire cross-section of said reaction zone. The flow of solids is regulated by individually controlling the conical heaps of solids formed at the point where said streams reunite, by altering the effective length of conduits 13, 14 by means of extension tubes 4, 5 which pass through the cover 3 of a collecting vessel 1 in which said streams reunite. Corrugated tubes 17, 18, 19, 20 prevent gas leakage while permitting movement of the extension tubes.
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公开(公告)号：GB911114A
公开(公告)日：1962-11-21
申请号：GB4189760
申请日：1960-12-06
Applicant: BASF AG
Inventor： KNOBLOCH WALTER , BALZ DIETRICH , SCHULTZ WILHELM
Abstract: The production of olefins or producer gas is effected by vaporizing a vaporizable liquid hydrocarbon mixing it with oxygen or air and steam or carbon dioxide, and introducing it at atmospheric or increased pressure through a burner into a reaction chamber and simultaneously introducing a non-vaporizable liquid hydrocarbon through an atomizing jet in the same burner into the mixture of vaporized hydrocarbon and gases. Vaporizable hydrocarbons are hydrocarbons which can be vaporized without leaving a residue, e.g. light gasoline, liquefied gases and petroleum distillates; non-vaporizable hydrocarbons are those which cannot be vaporized without leaving a residue, e.g. crude oils, residue oils and oils containing compounds forming non-volatile resins. The vaporizable and non-vaporizable liquids may be obtained from a single feed by passing into a vaporizer, the nonvaporizable portion being recovered from the sump. Suitable conditions are 600 DEG -2,000 DEG C. and up to 30 atmospheres. In the drawing, vaporizable hydrocarbon enters through vaporizer 1, and gases by line 3 and after mixing flow through the annular space 4 of the burner 2. Liquid hydrocarbon is preheated before spraying through jet 7 which is drawn back to prevent wetting of the reaction chamber walls. The whole mixture is ignited. The reaction chamber may be empty or filled with coke or other inert solid or catalyst.
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公开(公告)号：FR1266981A
公开(公告)日：1961-07-17
申请号：FR838099
申请日：1960-09-08
Applicant: BASF AG
Inventor： KNOBLOCH WALTER , BALZ DIETRICH , SCHULTZ WILHELM
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