Catalytic cracking feed nozzle

• Main Authors: WANG SHAOCAI, LIU DAN, HUANG WENSHUI, HOU YULAN, YE ANDAO, SU QINYU, WANG CHANGXIA
• Format: Patent
• Language: Chinese; English
• Published: 21.04.2010
• Subjects: CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; 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

The utility model discloses a catalytic cracking feed nozzle, so as to solve the problems in the existing nozzle of bigger atomization grain size, over-high spraying speed, uneven atomization and the like. A feed end of a nozzle body of the utility model is sequentially provided with a rotational flow taper pipe and a rotational flow round pipe coaxially with the nozzle. The nozzle body, the rotational flow taper pipe and the rotational flow round pipe are internally and coaxially provided with a primary steam distribution pipe; one end of the primary steam distribution pipe near the nozzle is provided with a conehead pipe, and the other head thereof is a primary steam inlet. An isolation pipe is arranged in the cavity between the primary steam distribution pipe and the nozzle body, and one end of the isolation pipe near the nozzle is provided with a second steam distributor. The primary steam distribution pipe, the conehead pipe and the second steam distributor are respectively provided with circles of steam