King Fahd University of Petroleum and Minerals

Saudi Arabian Oil Company

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Japan Cooperation Center, Petroleum (jccp)

Syed Ahmed Ali

Abdullah Mohammed Aitani

Sulaiman Saleh Al-Khattaf

Akolade Idris Bakare

Aniz Chennampilly Ummer

Galal Atef Ahmed Nasser

Mohammed Ahmed Yahya Sanhoob

Raed H Abudawoud

Balasamy Rabindran Jermy

Zain Hassan Yamani

Yuguo Wang

Cemal Ercan

Mohammad Ashraf Ali

Nouar Tabet

Tomoyuki Inui

Yann Leconte

Minoru Hatayama

Frederic Schuster

Muhammad A Al-Saleh

Axelle Quinsac

Katsuhiko Ishikawa

Sulaiman S Al-khattaf

Tsutomo Okamoto

Mohammed Ashraf Ali

Masayuki Inui, Legal Representative

Khalid Al-Nawad

A method for chemically reducing carbon dioxide (CO) with a red mud catalyst composition is provided includes introducing a gaseous mixture of COand Hinto a reactor containing particles of the red mud catalyst composition. The method further includes reacting at least a portion of the COand Hin the gaseous mixture in the presence of the red mud catalyst composition at a temperature of 200 to 800° C., and under a pressure ranging from 5 to 100 bar to form a gaseous product including a chemical reduction product of the CO. A volume ratio of the COto the Hin the gaseous mixture is in a range of 1:10 to 10:1.

Carbon dioxide reduction method with red mud catalyst

Method for forming olefins from carbon dioxide

A method for chemically reducing carbon dioxide (CO) with a red mud catalyst composition is provided includes introducing a gaseous mixture of COand Hinto a reactor containing particles of the red mud catalyst composition. The method further includes reacting at least a portion of the COand Hin the gaseous mixture in the presence of the red mud catalyst composition at a temperature of 200 to 800° ° C., and under a pressure ranging from 5 to 100 bar to form a gaseous product including a chemical reduction product of the CO. A volume ratio of the COto the Hin the gaseous mixture is in a range of 1:10 to 10:1.

Method for converting carbon dioxide with red mud catalyst

Method for chemically reducing carbon dioxide with red mud catalyst composition

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

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

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

Process for producing xylene using a metal-doped zeolite catalyst

A process for producing an unsupported molybdenum sulfide nanocatalyst comprising atomizing a molybdenum oxide solution to form a molybdenum oxide aerosol, pyrolyzing the molybdenum oxide aerosol with a laser beam to form the unsupported molybdenum-based nanocatalyst, and pre-sulfiding at least a portion of the unsupported molybdenum-based nanocatalyst to form an unsupported molybdenum sulfide nanocatalyst, wherein the unsupported molybdenum-based nanocatalyst, the unsupported molybdenum sulfide catalyst or both are in the form of nanoparticles with a diameter of 1-10 nm and in a distorted rutile crystalline structure. A method of selective deep hydrodesulfurization whereby a hydrocarbon feedstock having at least one sulfur-containing component and at least one hydrocarbon is contacted with the unsupported molybdenum sulfide nanocatalyst.

Process for selective deep hydrodesulfurization of a hydrocarbon feedstock using an unsupported nanocatalyst made by laser pyrolysis

A method is disclosed for selective simultaneous production of para-xylene, para-ethyltoluene and para-diethylbenzene from a reactant stream containing ethylbenzene and methanol, as an alkylating agent. The process comprises alkylation of the feedstock in a fluidized-bed rector under alkylating conditions, over a modified ZSM-5-based catalyst to produce streams containing above 95% para-isomers of dialkylbenzenes. The method also includes the steps of multilayer silylation to achieve simultaneous selectivity of the para-isomers of dialkylbenzenes.

Method for the selective production of para-dialkylbenzenes

A transalkylation catalyst for the transalkylation of a heavy reformate is provided. The catalyst includes two solid acid zeolites having different physical and chemical properties, and at least three metals selected from the group 4 lanthanthides, and the elements found in groups 6 and 10 of the periodic table.

Multimetal zeolites based catalyst for transalkylation of heavy reformate to produce xylenes and petrochemical feedstocks

The multiple zeolite catalyst is a catalytic composition used to convert Calkylaromatic hydrocarbons to BTX, particularly commercially valuable xylenes. The catalyst is formed by mixing at least two zeolites selected from mordenite, beta zeolite, ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, MFI topology zeolite, NES topology zeolite, EU-1, MAPO-36, SAPO-5, SAPO-11, SAPO-34, and SAPO-41, and adding at least one metal component selected from Group VIB and Group VIII of the Periodic Table of the Elements. The two zeolites should have different physical and chemical characteristics, such as pore size and acidity. An exemplary catalyst includes mordenite, ZSM-5, and 3 wt. % molybdenum. The transalkylation reaction may be conducted in one or more reactors with a fixed bed, moving bed, or radial flow reactor at 200-540&#xb0; C., a pressure of 1.0-5.0 MPa, and liquid hourly space velocity of 1.0-5.0 per hour.

Multiple zeolite catalyst

Growing community of inventors

Dhahran, Saudi Arabia

Syed Ahmed Ali