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2 348 678

(13)

(51)

IPC

C10G9/14(2006-01-01)

C07C4/04(2006-01-01)

(21) (22)

Application

2007127148/15, 2007-07-16

(24)

Start date

2007-07-16

(22)

Actual filing date

2007-07-16

(45)

Published

2009-03-10

(72)

Inventor

Erofeev Vladimir IvanovichKuznetsov Nikolaj NikolaevichMaskaev Gennadij PavlovichKoval' Ljubov' Mikhajlovna

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju

METHOD OF OBTAINING LOWER OLEFINS C-C FROM RAW LIGHT HYDROCARBON MATERIAL Russian patent published in 2009 - IPC C10G9/14 C07C4/04

Abstract RU 2348678 C1

FIELD: chemistry.

SUBSTANCE: invention can be applied in chemical and petrochemical industry. Preliminary thermal pyrolysis of gasoline fraction is performed in two stages in warm pipes of tube heater, obtaining hydrocarbon product and amorphous coke: first at 760÷805 °C for 12÷120 hours, then at 805÷825 °C for 12÷240 hours. Further pyrolysis of ethane fraction is performed together with gasoline fraction at gasoline fraction content in raw hydrocarbon material comprising 5÷30 wt %, at 760÷850 °C and weight ratio of raw hydrocarbon material to water steam = 1.0:0.3÷0.9.

EFFECT: increased output of lower olefins C₂-C₃ due to enhanced conversion degree of ethane fraction, reduced carbon oxide output while preserving high parametres of catalyst service cycle of furnace in the process of thermal pyrolysis of ethane fraction.

1 tbl, 8 ex

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RU 2 348 678 C1

Authors

Erofeev Vladimir Ivanovich

Kuznetsov Nikolaj Nikolaevich

Maskaev Gennadij Pavlovich

Koval' Ljubov' Mikhajlovna

Dates

2009-03-10—Published

2007-07-16—Filed