METHOD OF INHIBITING PROCESS OF THERMOPOLYMERIZATION AND RESIN FORMATION OF UNSATURATED HYDROCARBONS

FIELD: chemical industry. SUBSTANCE: claimed method is useful in process of thermopolymerization of resin formation of unsaturated hydrocarbons in deethanization and depropanization columns in the process of separation of products of pyrolysis of hydrocarbons by multi-step rectification by adding in...

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Hauptverfasser:	PATANOVA I.M, PAVLOV S.JU, AKHMED'JANOVA R.A, BOREJKO N.P, LIAKUMOVICH A.G, SUROVTSEV A.A, JAFIZOVA V.P
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON CRACKING HYDROCARBON OILS FUELS LUBRICANTS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MINERAL WAXES ORGANIC MACROMOLECULAR COMPOUNDS PEAT PETROLEUM, GAS OR COKE INDUSTRIES 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 TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	FIELD: chemical industry. SUBSTANCE: claimed method is useful in process of thermopolymerization of resin formation of unsaturated hydrocarbons in deethanization and depropanization columns in the process of separation of products of pyrolysis of hydrocarbons by multi-step rectification by adding inhibitor. The inhibitor includes product resulting from oxidizing - tetramethyl-4-oxopiperidine and comprising 55-92% tetramethyl-4-oxopiperidine-1-oxyl; 4-35 % - tetramethyl-4-oxopiperidine; 1-8% -tetramethyl-1- hydroxy-4-oxopiperidine; and 1-9% admixtures. Inhibitor is used in amount of 0.005-0.3% (preferably 0.01-0.1%) by weight on initial hydrocarbon mixtures admitted into depropanization and deethanization columns. The inhibitor includes solution of said oxidation product in organic solvent. EFFECT: more efficient method and improved economic characteristics. 2 cl, 1 tbln