REDUCED GENERATION OF AMMONIA IN NICKEL CATALYST OF REFORMER

REDUCED GENERATION OF AMMONIA IN NICKEL CATALYST OF REFORMER

Reformation of natural gas without excessive production of ammonia, even if the natural gas includes as much as 14% nitrogen, is achieved in reformers including tubes (75) having outer chambers (78) with catalysts therein, a first stage (80) of catalyst having between about 10% and about 25% nickel,...

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Bibliographische Detailangaben
1. Verfasser: PRESTON, JOHN, L
Format: Patent
Sprache:eng ; fre
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:Reformation of natural gas without excessive production of ammonia, even if the natural gas includes as much as 14% nitrogen, is achieved in reformers including tubes (75) having outer chambers (78) with catalysts therein, a first stage (80) of catalyst having between about 10% and about 25% nickel, a second stage (81 ) of catalyst having less than 10% nickel, and a final stage (82) having 2% or less rhodium catalyst of a low concentration. Selon l'invention, le reformage de gaz naturel sans production excessive d'ammoniac, même si le gaz naturel comprend jusqu'à 14 % d'azote, est réalisé dans des reformeurs comprenant des tubes (75) comportant des chambres externes (78) contenant des catalyseurs, un premier étage (80) de catalyseur ayant entre environ 10 % et environ 25 % de nickel, un deuxième étage (81) de catalyseur ayant moins de 10 % de nickel et un étage final (82) ayant 2 % ou moins de catalyseur au rhodium d'une faible concentration.