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公开(公告)号：DE3105030A1
公开(公告)日：1982-09-02
申请号：DE3105030
申请日：1981-02-12
Applicant: BASF AG
Inventor： KUERTEN HERIBERT DIPL ING DR , PUESTEL HUBERT , SCHULZ RUDI ING GRAD , WEBER GEORG DIPL ING
Abstract: A process for the continuous preparation of hydrocarbon oils from coal by cracking hydrogenation under pressure in two stages. In the first stage (carried out in the bottom phase) milled coal, together with finely divided catalysts, is pasted with an oil mixture, and the slurry is hydrogenated by heating to 380 DEG -440 DEG C. under a hydrogen pressure of from 200 to 700 bar. The gaseous and liquid reaction products are separated from the solid products and subjected to a further hydrogenation (this time in the gas phase), using a fixed hydrogenation catalyst. The heat of the hydrogenated product is indirectly and separately transferred to the coal/oil mixture and the hydrogen by heat exchange in not less than three stages.
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公开(公告)号：DE2736872A1
公开(公告)日：1979-02-22
申请号：DE2736872
申请日：1977-08-16
Applicant: BASF AG
Inventor： RAPP GUENTHER DIPL CHEM DR , THOMAS ERWIN , WOLF DIETER DIPL ING DR , KUERTEN HERIBERT DIPL ING DR , ZEHNER PETER DIPL ING DR
Abstract: Hydroxylammonium salts are manufactured by a process comprising the catalytic reduction of nitric oxide with hydrogen in a dilute aqueous solution of a mineral acid in the presence of a suspended platinum catalyst at an elevated temperature, wherein the reaction mixture is recycled and the gas mixture, containing nitric oxide and hydrogen, present in the gas space above the reaction zone, is introduced, by means of one or more downwardly directed jets of liquid, consisting of the recycled reaction mixture and issuing from a nozzle orifice, into one or more circulation zones which are present in the reaction zone, are open at both sides, extend in the direction of the entering jet of liquid and are completely covered by the reaction mixture, the reaction mixture leaving the bottom of the circulation zone and containing unconverted gases is deflected, passed upwards in the annular zone externally surrounding the circulation zone, and at the same time reaction mixture of low gas content is recycled from a separation zone located under the reaction zone.
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公开(公告)号：DE3140420A1
公开(公告)日：1983-04-21
申请号：DE3140420
申请日：1981-10-12
Applicant: BASF AG
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公开(公告)号：DE2703809A1
公开(公告)日：1978-08-10
申请号：DE2703809
申请日：1977-01-29
Applicant: BASF AG
Abstract: The process introduces oxygen and forms activated sludge suspension in activation basins. The reaction impulse occurring with self-priming or compressed air-operated spray nozzles or ejectors is used to move the gasification unit over the floor of the activation basin. Turbulence generation in the sludge can be aided by rotary compressor bodies. The design ensures that the ventilation units necessary for oxygen introduction can also be relied on to keep the sludge in suspension.
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Patent Agency Ranking
公开(公告)号：DE2637108A1
公开(公告)日：1978-02-23
申请号：DE2637108
申请日：1976-08-18
Applicant: BASF AG
Inventor： ENGELHARDT HUBERT DIPL ING , GLEICH WOLFGANG ING GRAD , KUERTEN HERIBERT DIPL ING DR , LEIB HEINZ DIPL ING , NAGEL OTTO DIPL ING DR , ZEHNER PETER DIPL ING DR
Abstract: The immediate spray area of the stirrer is protected with a dome having 2-6 (pref. 2.5-4) times the stirrer's diameter. The air stream which is carried along by the dome's walls which dip into the liquid, pref. in the form of fine bubbles, is 0.05-2 times (pref. 0.2-0.5 times) the water stream agitated by the stirrer. The activated sludge is also kept in suspension. Only the immediate stirrer area of the tank need be covered. Pref. the moment of the stirrer and dome is 1.5-3 times that of an unprotected stirrer at the same depth of immersion and speed of rotation.
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公开(公告)号：DE2410570A1
公开(公告)日：1975-09-25
申请号：DE2410570
申请日：1974-03-06
Applicant: BASF AG
IPC: B01F3/04 , B01F3/08 , B01F5/00 , B01F5/02 , F04F5/04 , F04F5/10 , F04F5/46 , F04F5/54 , B01F3/00
Abstract: A process for drawing in and compressing gases and mixing the same with liquid material, wherein the gases are first premixed with one or more liquid jets at a velocity of from 10 to 70 m/sec, the smallest cross-sectional area of the mixing nozzle being at a distance from the propulsive jet which is equal to from 1 to 10 times the smallest hydraulic diameter of the mixing nozzle, which smallest cross-sectional area of the mixing nozzle is equal to from 1.5 to 15 times the smallest cross-sectional area of the propulsive jet. The two-phase liquid mixture is passed through the mixing nozzle to the narrowest point of an impulse exchange tube disposed in the liquid medium, which impulse exchange tube is open at its inlet and outlet and is preferably provided with a diffuser. The smallest cross-sectional area of the impulse exchange tube is equal to from 1.2 to 20 times the smallest cross-sectional area of the mixing nozzle and the length of the impulse exchange tube is up to 20 times its smallest hydraulic diameter.
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公开(公告)号：DE3049181A1
公开(公告)日：1982-07-29
申请号：DE3049181
申请日：1980-12-24
Applicant: BASF AG
Inventor： EIGENBERGER GERHART DIPL ING D , KUERTEN HERIBERT DIPL ING DR , ZEHNER PETER DIPL ING DR , LACKNER BRUNO ING GRAD , WITTWER ARNOLD DIPL CHEM DR
Abstract: In exothermic reactions between liq. and gases on catalytically acting fixed bed fillings in tubular reactors, where reaction enthalpy is mostly removed by the gas stream, the bed of catalyst or of material contg. catalyst is interrupted by layers of material with no catalytic effect. The catalytically neutral material may be the catalyst carrier itself, but is pref. Pall rings, Raschig rings or saddle bodies, so dimensioned that catalyst cannot penetrate. A filling with 50cm. layer of Pall rings, each 15 mm long, alternating with 1 metre layers of catalyst kept the temp. of a known reaction below 300 deg.C, whereas over 500 deg.C had been recorded in the uninterrupted catalyst body. Useful for high pressure hydrogenation with gas fed through external coolers, and reduces the incidence of uncontrolled temp. rises which can damage the catalyst.
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公开(公告)号：DE2713550A1
公开(公告)日：1978-10-12
申请号：DE2713550
申请日：1977-03-28
Applicant: BASF AG
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公开(公告)号：DE3310269A1
公开(公告)日：1983-09-29
申请号：DE3310269
申请日：1983-03-22
Applicant: BASF AG
Inventor： WEBER GEORG DIPL ING , PUESTEL HUBERT , SCHULZ RUDI , KUERTEN HERIBERT DIPL ING DR
Abstract: Mechanical separating apparatus for use in hydrogenation plants for coal and heavy oil at pressures of 150 to 700 bar and temperatures of 350 to 500 DEG C with a shell-side inlet connection (6) for the hydrogenated product which comes, for example, from a liquid-phase reactor, having another shell-side connection (9) for the addition of circulating gas, an outlet connection (12) arranged in the lower part of the separating apparatus for the liquid/solid phase, and an outlet connection (11) arranged on top for the gaseous phase, having the following features: a) The pressure vessel (1) is made of low-alloy steel (2.25% Cr, 1% Mo) with a wall thickness of between 100 and 400 mm and an outside diameter of between 1200 and 3000 mm. b) The pressure vessel (1) is surrounded by a concentric cylinder (13) of unalloyed steel having a wall thickness of between 10 and 20 mm, the distance between the pressure vessel (1) and the concentric cylinder (13) being between 40 and 150 mm. c) The hydrogenated product, which enters into the inside of the pressure vessel (1) via the inlet connection (6) is deflected tangentially downward by baffles (7, 8). d) The pressure vessel (1) is closed in its lower part by a cone (4) which passes into the outlet connection (12) for the liquid/solid phase. In the upper part the pressure vessel (1) is closed by a spherical plate (2) and a flat cover (3).
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