King Fahd University of Petroleum and Minerals

Saudi Arabian Oil Company

Saudi Basic Industries Corporation

Sabic Global Technologies B.v.

King Abdulaziz City for Science and Technology

Sulaiman Saleh Al-Khattaf

Abdullah Mohammed Aitani

Syed Ahmed Ali

Arudra Palani

Palani Arudra

Amr Abdalla

Mohammad Naseem Akhtar

Mohammed A Al-Yami

Tazul Islam Bhuiyan

Sohel K Shaikh

Raed H Abudawoud

Mohammed Abdul Bari Siddiqui

Cemal Ercan

Nabil Al-Yassir

Musaed Salem Al-Ghrami

Mohammed Hassan Al-Hazmi

Balasamy Rabindran Jermy

Taiwo Odedairo

Hideshi Hattori

Yuguo Wang

Ahmed Al-Zenaidi

Akram Abdulhakeem Al-Absi

Ahmed Alzenaidi

Mian Rahat Saeed

Vidya Sagar Guggilla

Mohammed A Siddiqui

Yaming Jin

Taiwo A Odedairo

M Abdulbari Siddiqui

Balkrishna B Tope

Muneeb Khurshid

Mohammed Ashraf Ali

Embodiments of zeolite composite catalysts and methods of producing the zeolite composite catalysts are provided, where the methods comprise dissolving in an alkaline solution a catalyst precursor comprising at least one mesoporous zeolite while heating, stirring, or both to yield a dissolved zeolite solution, where the mesoporous zeolite has a molar ratio of SiO/AlOof at least 30, where the mesoporous zeolite comprises zeolite beta, adjusting the pH of the dissolved zeolite solution, aging the pH adjusted dissolved zeolite solution to yield solid zeolite composite from the dissolved zeolite solution, and calcining the solid zeolite composite to produce the zeolite composite catalyst, where the zeolite composite catalyst has a mesostructure comprising at least one disordered mesophase and at least one ordered mesophase, and where the zeolite composite catalyst has a surface area defined by the Brunauer-Emmett-Teller (BET) analysis of at least 600 m/g.

Zeolite composite catalysts for conversion of heavy reformate to xylenes

An integrated process catalytically cracks whole light crude oil into light olefins, especially propylene and ethylene. The process is integrated with an adjacent conventional fluid catalytic cracking unit whereby the heavy liquid product mixture (light and heavy cycle oils) from whole crude oil cracking is mixed with vacuum gas oil (VGO) for further processing. The process comprises recycling total product fraction of light cracked naphtha (LCN) and mixing with fresh crude oil feed. High propylene and ethylene yields are obtained by cracking the whole light crude oil and LCN in an FCC configuration using a mixture of FCC catalyst and ZSM-5 additive at a temperature between, that of conventional FCC and steam cracking.

Catalytic cracking of crude oil to light olefins

Embodiments of processes for producing propylene utilize a dual catalyst system comprising a mesoporous silica catalyst impregnated with metal oxide and a mordenite framework inverted (MFI) structured silica catalyst downstream of the mesoporous silica catalyst, where the mesoporous silica catalyst includes a pore size distribution of at least 2.5 nm to 40 nm and a total pore volume of at least 0.600 cm/g, and the MFI structured silica catalyst has a total acidity of 0.001 mmol/g to 0.1 mmol/g. The propylene is produced from the butene stream via metathesis by contacting the mesoporous silica catalyst and subsequent cracking by contacting the MFI structured silica catalyst.

Dual catalyst system for propylene production

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

The invention pertains to a zeolite catalyst, methods of making same, and its use in the catalytic cracking of naphtha for the production of lower molecular weight olefins and alkanes, while minimizing production less desirable products. A zeolite is modified by base leaching and by the addition of a metal cation, thereby lowering the Si/Alratio and improving the stability of the formed catalyst.

Modified zeolite catalyst and methods for producing and using same

A method of preparing a metal-doped zeolite catalyst with a modified topology (e.g. a pillared zeolite or a delaminated zeolite), and a method of using thereof in a process for converting an alkyl-aromatic hydrocarbon stream to BTX (benzene/toluene/xylene), wherein an enhanced pore topology in the metal-doped zeolite catalyst determines a selectivity to transalkylation of trimethylbenzene to xylene, which in turn leads to a higher xylene yield. Various embodiments of the method of preparing the metal-doped zeolite catalyst, and the process for converting the alkyl-aromatic hydrocarbon stream to BTX are also provided.

Fixed-bed alkyl-aromatic conversion process

Process for forming a xylene-rich stream

A method of producing propylene and ethylene from a butene-containing hydrocarbon stream by cracking olefin compounds in the butene-containing hydrocarbon stream in the presence of a core-shell ZSM catalyst, wherein the core-shell ZSM catalyst comprises a ZSM-5 core and a silica shell disposed thereon. Various embodiments of the method of producing propylene and ethylene, and the method of making the core-shell ZSM catalyst are also provided.

Method of making and separating a propylene/ethylene mixture from butene

Method of treating butene to form propylene/ethylene mixture

Method for making a catalyst and cracking a hydrocarbon stream to form propylene/ethylene

Method of making ZSM-based catalyst and forming a propylene/ethylene mixture

Method for forming a zeolite catalyst and use thereof to form a BTX-rich stream

Fluidized-bed cracking of butene to form propylene and ethylene

Growing community of inventors

Dhahran, Saudi Arabia

Sulaiman Saleh Al-Khattaf