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公开(公告)号：GB1087512A
公开(公告)日：1967-10-18
申请号：GB859366
申请日：1966-02-28
Applicant: BASF AG
Inventor： BUSCHMANN KARL , MARKERT FERDINAND , MEYER HERMANN , RICHTER GOTTFRIED , SCHWEITZER ARMIN
Abstract: Low molecular weight olefins, particularly ethylene, are obtained by thermal cracking in a cracking tube at above 750 DEG C. of aliphatic hydrocarbons having a final b.p. below 300 DEG C., e.g. light naphtha, followed by cooling to below 400 DEG C. in a cooling unit comprising either a single-tube cooler or a single-tube cooler followed by a multi-tube cooler, the single-tube cooler in either case being connected to the cracking tube by a connecting-piece so short that the residence time of the cracked gas in the connecting-piece is less than 0.01 sec. The connecting piece is preferably installed in the brickwork of the furnace casing, and is usually conical, the internal diameter of the cooling tube being greater than that of the cracking tube. More than one cracking tube may be connected to the same cooling unit. The process is stated to reduce undesirable side-reactions in the cracked gas, e.g. deposition of coke and production of methane and hydrogen.
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公开(公告)号：CA1273916A
公开(公告)日：1990-09-11
申请号：CA479477
申请日：1985-04-18
Applicant: BASF AG
Inventor： DIERKE RUEDIGER , SCHLICHTHAERLE GOTTFRIED , SCHUCHART PETER , SCHWEITZER ARMIN
Abstract: Heat is removed from, or supplied to, a vertical pipe of any cross-section, whose internal temperature is above or below the ambient temperature and whose wall temperature must neither exceed nor fall below a predetermined temperature range, by a method in which, in order to maintain the predetermined temperature range, the pipe is provided with a coaxial sheath and gas is passed through the gap between the pipe and the sheath.
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公开(公告)号：GB1095727A
公开(公告)日：1967-12-20
申请号：GB1650965
申请日：1965-04-20
Applicant: BASF AG , LUMMUS NEDERLAND N V
Inventor： BUSCHMANN KARL , MEYER HERMANN , SCHWEITZER ARMIN , KRAMER JAN , O'SULLIVAN THOMAS FRANCIS
Abstract: In the production of gaseous olefins by pyrolysis of gaseous or vaporizable hydrocarbons at above 750 DEG C. followed by indirect cooling in a waste heat boiler to below 400 DEG C. the member connecting the pyrolysis tube to the wider boiler contains a displacement member to avoid the velocity of the gas falling below the velocity of entry into the cooling tubes. The displacement member contains passages guiding the gas to the cooling tubes and may be streamlined as shown in Fig. 1 or may extend over the whole width of the connecting member (Fig. 2, not shown).
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公开(公告)号：FR1469918A
公开(公告)日：1967-02-17
申请号：FR50800
申请日：1966-02-23
Applicant: BASF AG
Inventor： BUSCHMANN KARL , MARKERT FERDINAND , MEYER HERMANN , RICHTER GOTTFRIED , SCHWEITZER ARMIN
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Patent Agency Ranking
公开(公告)号：GB1156156A
公开(公告)日：1969-06-25
申请号：GB5041866
申请日：1966-11-10
Applicant: BASF AG
Inventor： BUSCHMANN KARL , KNOBLOCH WALTER , SCHMULDER PAUL , SCHWEITZER ARMIN
Abstract: 1,156,156. Making combustible gas. BADISCHE ANILIN- & SODA-FABRIK A.G. 10 Nov., 1966 [11 Nov., 1965], No. 50418/66. Heading C5E. In a process for continuously cracking gaseous and/or vaporizable hydro-carbons, e.g. methane, natural gas, and liquefied low boiling hydrocarbons, with steam and optionally with oxygen, to produce H 2 - and CO-containing gases, the feed is passed through a bed of catalyst located in the annular space between inner and outer concentric tubes, the bed being heated by direct firing of the walls of both the tubes. The source of heat for the inert tube is one or more burners, preferably a single longitudinal burner, at one end of the tube, and several burners normal to the external wall of the outer tube. The tubes may be cylindrical or conical, and may be corrugated on the faces contacting the catalyst, which is preferably nickel and may contain alkali metal oxides. Preferred temperatures are 700‹ to 900‹ C., and pressures up to 50 atmos are mentioned. The object of the invention is to prevent a temperature gradient across the catalyst.
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公开(公告)号：GB1099904A
公开(公告)日：1968-01-17
申请号：GB2038265
申请日：1965-05-14
Applicant: BASF AG
Inventor： BUSCHMANN KARL , MEYER HERMANN , NONNENMACHER HELMUT , SCHWEITZER ARMIN
Abstract: Ethylene is obtained by thermal cracking of hydrocarbons in a pyrolysis tube at 750-850 DEG C. followed by cooling to below 400 DEG C. in a quench boiler in which steam is injected tangentially into the member connecting the tube to the boiler. The member may be conical or partly cylindrical and partly conical or in a preferred embodiment (Fig. 4, not shown) is wholly cylindrical and steam is also injected upwardly adjacent to the cracking tube, and baffles deflect this steam laterally. The steam injected may be at 110-400 DEG C. in an amount of 0.02-1 part per part by weight of dry cracked gas and at a velocity of 10-300 m./sec.
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公开(公告)号：FR1501233A
公开(公告)日：1967-11-10
申请号：FR83343
申请日：1966-11-10
Applicant: BASF AG
Inventor： BUSCHMANN KARL , KNOBLOCH WALTER , SCHMULDER PAUL , SCHWEITZER ARMIN
IPC: C01B3/38
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公开(公告)号：FR1433702A
公开(公告)日：1966-04-01
申请号：FR13982
申请日：1965-04-21
Applicant: BASF AG , LUMMUS NEDERLAND N V
Inventor： BUSCHMANN KARL , MEYER HERMANN , SCHWEITZER ARMIN , KRAMER JAN , O'SULLIVAN THOMAS FRANCIS
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公开(公告)号：FR1433216A
公开(公告)日：1966-03-25
申请号：FR17079
申请日：1965-05-14
Applicant: BASF AG
Inventor： BUSCHMANN KARL , MEYER HERMANN , NONNENMACHER HELMUT , SCHWEITZER ARMIN
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