公开(公告)号：DE2261634A1

公开(公告)日：1974-06-27

申请号：DE2261634

申请日：1972-12-16

Applicant: BASF AG

Inventor： BROECKER FRANZ-JOSEF DR ,  DETHLEFSEN WINFRIED DR ,  KAEMPFER KNUT DR ,  SCHWARZMANN MANNHIAS DR

IPC: C10G11/20 ,  B01J23/00 ,  C01B3/38 ,  C07B61/00 ,  C07C1/00 ,  C07C4/06 ,  C07C9/04 ,  C07C67/00 ,  C10G51/02 ,  C10G13/30

Abstract: A mixt of 2-30C hydrocarbons with steam is partially cracked in a first reaction zone over a Ni catalyst to give a prod stream also contg. unreacted hydrocarbon. After cooling this is further reacted in a second zone over a Ni catalyst in the presence of steam to give a mixt of CH4, carbon oxides, H2 and steam. The catalyst in the first zone is pref. used until 75% of the hydrocarbon remains unreacted. It may then be replaced and used as the second zone, while the partially used catalyst from the second zone is used as the first. The catalyst is a type with low temp. activity, esp. one produced from a precursor of formula Ni5MgAl2(OH)16.CO3.4H2O. The process is highly economic, since the first zone can be operated with low steam to hydrocarbon ratios and with high catalyst loadings. Life of the catalyst is extended.

公开(公告)号：DE3161712D1

公开(公告)日：1984-01-26

申请号：DE3161712

申请日：1981-10-05

Applicant: BASF AG

Inventor： BLANCK KLAUS DR ,  DETHLEFSEN WINFRIED DR ,  JUNGBAUER ANTON DR ,  LEUTNER BERND DR ,  SCHIER ERNST-JUERGEN DR ,  SCHLIMPLER HANS-ULRICH DR ,  SCHNEEHAGE HANS HENNING DR

IPC: C07D251/60 ,  B01D53/86 ,  B01J23/00 ,  B01J23/72 ,  B01J23/745 ,  C01C1/12 ,  C07B61/00 ,  B01D53/36

Abstract: The reaction off-gas from the synthesis of melamine consists, after separating off the melamine, mainly of ammonia and carbon dioxide, with traces of hydrogen cyanide, isocyanic acid, urea and residual melamine. To remove these trace components, the off-gas is passed over a catalyst, containing copper oxide and/or iron oxide, in the presence of steam at from 100 DEG to 500 DEG C.

公开(公告)号：DE2255956A1

公开(公告)日：1974-05-22

申请号：DE2255956

申请日：1972-11-15

Applicant: BASF AG

Inventor： BROECKER FRANZ JOSEF DR ,  DETHLEFSEN WINFRIED DR ,  KAEMPFER KNUT DR ,  SCHWARZMANN MATTHIAS DR ,  TRIEBSKORN BRUNO DR ,  ZIRKER GUENTER DR ,  MAROSI LASZLO

IPC: C10G11/20 ,  B01J23/00 ,  B01J23/755 ,  C07B61/00 ,  C07C1/00 ,  C07C1/02 ,  C07C4/00 ,  C07C4/06 ,  C07C9/04 ,  C07C67/00 ,  B01J11/06 ,  C10G13/20

公开(公告)号：DE2255909A1

公开(公告)日：1974-05-16

申请号：DE2255909

申请日：1972-11-15

Applicant: BASF AG

Inventor： BROECKER FRANZ JOSEF DR ,  DETHLEFSEN WINFRIED DR ,  KAEMPFER KNUT DR ,  SCHWARZMANN MATTHIAS DR ,  TRIEBSKORN BRUNO DR ,  ZIRKER GUENTER DR ,  MAROSI LASZLO DR

IPC: B01J23/755 ,  B01J37/08 ,  C07B61/00 ,  C07C1/00 ,  C07C4/00 ,  C07C4/06 ,  C07C9/04 ,  C07C67/00 ,  B01J11/22 ,  C10G13/30

公开(公告)号：DE2255877A1

公开(公告)日：1974-05-16

申请号：DE2255877

申请日：1972-11-15

Applicant: BASF AG

Inventor： BROECKER FRANZ JOSEF DR ,  DETHLEFSEN WINFRIED DR ,  KAEMPFER KNUT DR ,  MAROSI LASZLO DR ,  SCHWARZMANN MATTHIAS DR ,  TRIEBSKORN BRUNO DR ,  ZIRKER GUENTER DR

IPC: B01J23/00 ,  B01J23/08 ,  B01J23/755 ,  B01J37/08 ,  C07B61/00 ,  C07C1/00 ,  C07C1/02 ,  C07C9/04 ,  C07C67/00 ,  C10K3/02

Abstract: Gases of various origins which contain carbon monoxide and dioxide and hydrogen, for example the gases obtained by steam reforming or the rich gas process, refinery gases or coal gasification gases are methanized on a nickel catalyst. The object of this reaction is to obtain methane or gases which can be substituted for natural gas. To produce the catalyst, the compound Ni6Al2(OH)16.CO3.4H2O is obtained from aqueous solution. The catalyst is obtained from this compound after drying, calcination and subsequent reduction in a stream of hydrogen, whilst maintaining very specific temperature gradients between the drying stage and the calcination stage.