METHOD FOR REMOVING AMMONIA FROM A METHANOL CONTAINING STREAM

A stream of liquid methanol containing ammonia and other species is sent to the top of a countercurrent stripping column. The stream is stripped with a flow of ambient-temperature nitrogen or another inert gas. The column can be packed with random dumped packing. The overhead vapor contains ammonia...

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Bibliographische Detailangaben
Hauptverfasser:	HIGDON, CHARLES ROLAND, III, JAKUBOWSKI, THOMAS LEO, BERG, JONATHAN JAMES
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY CLEANING CLEANING IN GENERAL COMPOUNDS THEREOF CRACKING HYDROCARBON OILS FUELS INORGANIC CHEMISTRY LUBRICANTS METALLURGY MINERAL WAXES NON-METALLIC ELEMENTS ORGANIC CHEMISTRY PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREVENTION OF FOULING IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA SEPARATION TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORTING
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Beschreibung
Zusammenfassung:	A stream of liquid methanol containing ammonia and other species is sent to the top of a countercurrent stripping column. The stream is stripped with a flow of ambient-temperature nitrogen or another inert gas. The column can be packed with random dumped packing. The overhead vapor contains ammonia and the liquid exiting the column has a reduced amount of ammonia. Removing ammonia can reduce or prevent fouling or corrosion caused by ammonia (and other compounds). Un courant de méthanol liquide contenant de l'ammoniac et autres composés est envoyé au sommet d'une colonne de rectification à contre-courant. Le courant est rectifié au moyen d'un écoulement d'azote à la température ambiante ou d'un autre gaz inerte. La colonne peut être remplie par du remplissage déversé au hasard. La vapeur primaire contient de l'ammoniac et le liquide sortant de la colonne comporte une quantité réduite d'ammoniac. Le retrait de l'ammoniac peut réduire ou empêcher l'encrassement ou la corrosion causés par ce composé (et d'autres).