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1. CN101218325 - Method for processing hydrocarbon pyrolysis effluent

Office China
Application Number 200680024907.5
Application Date 27.06.2006
Publication Number 101218325
Publication Date 09.07.2008
Grant Number 101218325
Grant Date 25.07.2012
Publication Kind B
IPC
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
G
CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
9
Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
C10G 9/00
CPC
C10G 9/002
C10G 2300/301
C10G 2300/4081
C10G 2300/805
C10G 2400/02
Applicants Exxonmobil Chem Patents Inc.
埃克森美孚化学专利公司
Inventors Strack Robert D.
R·D·斯特莱克
Messinger John R.
J·R·梅辛杰
Agents dengyi
中国国际贸易促进委员会专利商标事务所 11038
Priority Data 11178037 08.07.2005 US
Title
(EN) Method for processing hydrocarbon pyrolysis effluent
(ZH) 烃热解排出物的加工方法
Abstract
(EN)
A method and apparatus are disclosed for treating the effluent from a hydrocarbon pyrolysis unit employing a small primary fractionator, i.e., a rectifier. The method comprises cooling the gaseous effluent, e.g., by direct quench and/or at least one primary heat exchanger, and then cooling the gaseous effluent to a temperature at which tar, formed by reactions among constituents of the effluent, condenses, e.g., in a secondary exchanger. The resulting mixed gaseous and liquid effluent is passed through a rectifier, to cleanly separate quench oil from the gaseous effluent comprising a pyrolysis gasoline fraction, whose boiling point can be lowered as a result of the rectifier treatment. The effluent is then cooled to condense a liquid effluent comprising pyrolysis gasoline and water condensed from steam, which fractions are separated in a distillate drum. The cooled gaseous effluent is directed to a recovery train to recover light olefins. At least a portion of the pyrolysis gasoline-containing fraction can be recycled to the rectifier to enhance separation of the quench oil from the pyrolysis gasoline fraction.

(ZH)

公开了采用小初级分馏器(即精馏器)处理来自烃热解装置排出物的方法和设备。该方法包括:冷却该气态排出物,例如通过直接骤冷和/或至少一个主换热器进行冷却,并且然后例如在副换热器中将该气态排出物冷却到焦油冷凝的温度,所述焦油是由所述排出物成分之间的反应形成的。让所得的混合气态和液态排出物通过精馏器,以清洁地将骤冷油与包含热解汽油馏分的气态排出物分离,所述热解汽油馏分的沸点由于该精馏器处理的结果而可能降低。然后将该排出物冷却以使包含热解汽油和由蒸汽冷凝的水的液态排出物冷凝,在馏出物转鼓中将所述馏分分离。将该冷却的气态排出物送往回收设备组以回收轻质烯烃。可以将该含热解汽油的馏分的至少一部分再循环到该精馏器以提高骤冷油与热解汽油馏分的分离。

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