PREVENTION OF COKING IN PYROLYSIS PLANTS

1,267,467. Preventing coking in pyrolysis plants. DEUTSCHE TEXACO A.G. 10 Nov., 1970 [28 Nov., 1969], No. 53450/70. Heading C5E. Coke obstructions are prevented in pyrolysis plants by causing the coke to deposit on a sieve in an easily accessible position in the flow path of the cracked gas stream b...

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Hauptverfasser:	FISCHER R, SCHNEIDER H, HUSSNER R
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS BLASTING CHEMISTRY CRACKING HYDROCARBON OILS DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION FUELS HEAT EXCHANGE IN GENERAL HEATING LIGHTING LUBRICANTS MECHANICAL ENGINEERING METALLURGY MINERAL WAXES ORGANIC CHEMISTRY 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 WEAPONS
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Zusammenfassung:	1,267,467. Preventing coking in pyrolysis plants. DEUTSCHE TEXACO A.G. 10 Nov., 1970 [28 Nov., 1969], No. 53450/70. Heading C5E. Coke obstructions are prevented in pyrolysis plants by causing the coke to deposit on a sieve in an easily accessible position in the flow path of the cracked gas stream between the pyrolysis furnace and the cooler. The sieve may comprise one or more wire mesh cages, preferably two disposed one within the other, the inner having a larger mesh size than the outer. In the example the cracked gases contain about 33 mole per cent ethylene obtained by pyrolysis of ethane. When the resistance of the sieve to the gas flow increases due to coke deposition the sieve is replaced.