Nitrogen abstracted from air by molecular sieve of steam-treated coconut shell subsequently treated with hydrocarbons

In a process to a molecular sieve, the carbon-based molecular sieve material is steam-activated coconut shell processed at approximately 800 deg C and subsequently treated with hydrocarbons at the same temperature. In a process to manufacture a carbon-based molecular sieve for the abstraction of nit...

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Bibliographic Details
Main Authors TARNOW, FERDINAND, SCHROETER, HANS-JUERGEN
Format Patent
LanguageEnglish
German
Published 19.12.2002
Edition7
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:In a process to a molecular sieve, the carbon-based molecular sieve material is steam-activated coconut shell processed at approximately 800 deg C and subsequently treated with hydrocarbons at the same temperature. In a process to manufacture a carbon-based molecular sieve for the abstraction of nitrogen from air, a pre-product is slightly activated in the presence of steam at a temperature between 800-900 deg C. The weakly activated product is then treated at 750-850 deg C with hydrocarbon substances to remove carbon compounds. Verfahren zur Herstellung von Kohlenstoffmolekularsieben für die Gewinnung von Stickstoff aus Luft, bei dem ein Vorprodukt bei Temperaturen von 800-900 DEG C mit Wasserdampf schwach aktiviert und das schwach aktivierte Produkt bei 750-850 DEG C mit Kohlenstoff abspaltenden Kohlenwasserstoffen behandelt wird, wobei ein handelsübliches, auf der Basis von Kokusnussschalen hergestelltes Kohlenstoffmolekularsieb bei Temperaturen von ca. 800 DEG C mit Wasserdampf aktiviert wird und anschließend bei der gleichen Temperatur mit Kohlenstoff abspaltenden Kohlenwasserstoffen behandelt wird.
Bibliography:Application Number: DE2001127768