Sabic Global Technologies B.v.

Vidya Sagar Guggilla

Abdullah Mohammed Aitani

Nabil Al-Yassir

Ahmed Alzenaidi

Mian Rahat Saeed

Mohammed A Siddiqui

Sulaiman Saleh Al-Khattaf

Khalid A Al-Majnouni

Ahmed Al-Zenaidi

Wojciech Andrzej Supronowicz

Nabil Alyasser

Naif Aldalaan

Ahmad M Al-Shehri

Sulaiman S Al-khattaf

Debdut S Roy

The presently disclosed subject matter relates to methods of producing ethylene and propylene by the catalytic steam cracking of naphtha using an HZSM-5 catalyst. An example method can include providing a naphtha feedstock, providing steam, and providing an HZSM-5 catalyst. The method can further include preparing the HZSM-5 catalyst by titanium modification or alkaline treatment, followed by phosphorus modification. The method can further include feeding the naphtha feedstock and steam to a reactor containing the catalyst and removing an effluent from the reactor having a combined yield of ethylene and propylene of greater than about 45 wt-%.

Methods for producing ethylene and propylene from naphtha

Systems and methods of producing olefins via catalytic cracking are disclosed. Hydrocarbons of a naphtha stream are isomerized by converting straight chain Cn hydrocarbons to branched Cn hydrocarbons, thereby forming an isomerized naphtha stream. The isomerized naphtha stream is subsequently fed to a catalytic cracking unit such that the hydrocarbons of the isomerized naphtha stream form olefins. In the catalytic cracking process, the reaction temperature can be kept lower than 680° C., thereby increasing the reactivity and minimizing catalyst deactivation in the catalytic cracking process.

Process of producing light olefins from isomerized straight run naphtha

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Bengaluru, India

Vidya Sagar Guggilla