摘要:
PCT No. PCT/EP95/03901 Sec. 371 Date Aug. 15, 1997 Sec. 102(e) Date Aug. 15, 1997 PCT Filed Oct. 2, 1995 PCT Pub. No. WO96/10619 PCT Pub. Date Apr. 11, 1996The invention concerns a process for recovering synthetic raw materials and fluid fuel components from used or waste plastics in accordance with patent application P 43 11 034,7. At least a partial flow of the depolymer produced according to this process is subjected, together with coal, to a coking process, fed to a thermal utilization system or introduced as a reducing agent into a blast furnace process. The depolymer can be used as an additive for bitumen and bituminous products.
摘要:
PCT No. PCT/EP95/03901 Sec. 371 Date Aug. 15, 1997 Sec. 102(e) Date Aug. 15, 1997 PCT Filed Oct. 2, 1995 PCT Pub. No. WO96/10619 PCT Pub. Date Apr. 11, 1996The invention concerns a process for recovering synthetic raw materials and fluid fuel components from used or waste plastics in accordance with patent application P 43 11 034,7. At least a partial flow of the depolymer produced according to this process is subjected, together with coal, to a coking process, fed to a thermal utilization system or introduced as a reducing agent into a blast furnace process. The depolymer can be used as an additive for bitumen and bituminous products.
摘要:
A process is disclosed for processing used or waste plastic materials in order to recover chemical raw materials and liquid fuel components by depolymerisation of the used materials, which are transformed into a pumpable and into a volatile phase. The volatile phase is separated into a gaseous phase and a condensate or condensable depolymerisation product, which are refined by standard usual procedures. The pumpable phase remaining once the volatile phase is separated is subjected to liquid phase hydrogenation, gasification, low temperature carbonisation or to a combination of said processes.
摘要:
Angegeben wird ein Verfahren zum Entfernen von Stickstoffoxiden aus einem Abgas durch selektive Reduktion mit Ammoniak in einer Katalysatorzone, wobei Abgas und Ammoniak in einem Verfahrensabschnitt in der einen Richtung und in einem späteren Verfahrensabschnitt in der Gegenrichtung den Katalysator durchströmen, das Ammoniak nur zeitweise zugeführt wird, die Abgasströmungsrichtung vor dem Austreten von Ammoniak am Katalysatorende umgekehrt wird und die genannten Verfahrensschritte abwechselnd wiederholt werden. Das Verfahren ist dadurch gekennzeichnet, daß der Eintrittsort des Ammoniaks in den Katalysator dem Eintrittsort des Abgases nachgeordnet ist. Dies bewirkt einen hohen NO-Umsatz ohne Ammoniakschlupf.
摘要:
This invention concerns a catalytically active coating applied to a base body, in particular a reaction tube, and a method of applying this catalytically active coating. According to the invention, the coating consists of a laminated composite which at least comprises a base body, an adhesion promoter and a catalytically active cover layer. An adhesion promoter, preferably a metallic adhesion promoter, is applied to a base body, preferably a metal base body, and a catalyst-containing suspension is applied to this adhesion promoter. Advantageously, the composition of the adhesion promoter is at least substantially metallic. Preferably, the adhesion promoter substantially comprises FeCrAl, NiAl and/or NiCrAlY. Coatings in which the catalytically active cover layer contains oxide ceramic catalyst material are suitable. Advantageously, the catalytically active cover layer can comprise metallic oxide hydroxide and/or compounds containing metallic oxide hydroxides and/or metallic oxides and/or compounds which contain metallic oxides and tend to from hydroxides. The catalytically active coating can be applied by sponging, painting, centrifuging, spraying and/or dipping. In particular, a coating in which the suspension is stabilized by a binder or a binder system has proven acceptable. Binders or binder systems which contain metallic oxide hydroxide phosphates and/or metallic salts and/or eutectic compounds which melt at the catalyst operating temperature are suitable. The suspension can further be stabilized by the addition of acids and/or bases in a neutral pH range.
摘要:
The invention pertains to a support catalyst in the form of fillers, constructed from an open-pore support material on whose outer and inner surfaces a macroporous ion exchange resin is mechanically and/or chemically affixed.