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公开(公告)号:DE944812C
公开(公告)日:1956-06-21
申请号:DEB0025065
申请日:1953-04-05
Applicant: BASF AG
Inventor: MARKERT DIPL-ING FERDINAND , FLESCH DR WILHELM , FUNK DR WILLIBALD
IPC: C10J3/46
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公开(公告)号:DE1240052B
公开(公告)日:1967-05-11
申请号:DEB0077403
申请日:1964-06-25
Applicant: BASF AG
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公开(公告)号:DE1217944B
公开(公告)日:1966-06-02
申请号:DEB0075780
申请日:1964-03-07
Applicant: BASF AG , SCHMIDT SCHE HEISSDAMPF
Inventor: BUSCHMANN DR KARL , MARKERT DIPL-ING FERDINAND , MEYER DR HERMANN , VOLLHARDT FROHMUT
Abstract: In the production of ethylene by thermal cracking of hydrocarbons at above 750 DEG C., followed by indirect cooling in quench boilers, the gases are passed through the cooling tubes at a speed above 50 kg./m.2/sec., e.g. 60-70 kg./m.2/sec. The temperature of the cooling tubes is preferably above 310 DEG C. maintained by a steam pressure of at least 100 atmospheres. The velocity of the gas in the inlet cone of the boiler should be above 20 kg./cu.m./sec.
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公开(公告)号:DE1127887B
公开(公告)日:1962-04-19
申请号:DEB0060674
申请日:1960-12-29
Applicant: BASF AG
Inventor: DANZ DR WILLI , FREY DR OTTO , KITTEL DIPL-ING ERICH , MARKERT DIPL-ING FERDINAND
IPC: C07C11/24
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公开(公告)号:DE1052396B
公开(公告)日:1959-03-12
申请号:DEB0045563
申请日:1957-08-03
Applicant: BASF AG
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公开(公告)号:DE1020435B
公开(公告)日:1957-12-05
申请号:DEB0028370
申请日:1953-11-13
Applicant: BASF AG
Inventor: MARKERT DIPL-ING FERDINAND , KITTEL DIPL-ING ERICH
IPC: C10J3/08
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公开(公告)号:DE1020434B
公开(公告)日:1957-12-05
申请号:DEB0028185
申请日:1953-10-31
Applicant: BASF AG
Inventor: MARKERT DIPL-ING FERDINAND , KITTEL DIPL-ING ERICH
IPC: C10J3/08
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