APPARATUS AND METHOD FOR PRODUCING ETHYLENE

Japanese Patent JP2014172887

A

PROBLEM TO BE SOLVED: To provide an apparatus for producing ethylene, which can increase a ratio of the production amount of by-products such as propylene to the production amount of the ethylene.SOLUTION: An isomerization treatment is carried out to decrease the concentration of a linear saturated hydrocarbon compound and increase the concentration of a branched saturated hydrocarbon compound in a naphtha fraction, in a naphtha isomerization reaction facility 12. An isomerization treatment is carried out to decrease the concentration of normal-butane and increase the concentration of iso-butane in butane, in a butane isomerization reaction facility 14, and then thermal decomposition is carried out together with water vapor in a water vapor thermal decomposition facility 13. The concentration of a branched saturated hydrocarbon compound relative to the concentration of a linear saturated hydrocarbon compound to be treated in the water vapor thermal decomposition facility 13 is altered to increase or decrease the production amount of a basic chemical raw material, which is a by-product, relative to the production amount of ethylene, thus ensuring both a good balance between the supply and demand of ethylene and a good balance between the supply and demand of the basic compound.

SUWA AKIO
KAGAWA YUSAKU

JP2013048987A

September 22, 2014

March 12, 2013

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IDEMITSU KOSAN CO

C07C4/04; C07C7/12; C07C11/04; C10G7/00; C10G9/36; C10G25/03; C10G35/04

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