Saudi Arabian Oil Company

Aramco Services Company

Veera Venkata R Tammana

Sebastien Andre Duval

Miao Sun

Ke Zhang

Sohel K Shaikh

Zhonglin Zhang

Raed H Abudawoud

Aadesh Harale

Milind M Vaidya

Bruce Richard Beadle

Rakan Sulaiman Bilaus

Hisham Tawfiq Bassam

Jean-Pierre R Ballaguet

Anwar H Khawajah

Feras Hamad

Simone Less

Georgios Lithoxoos

Regis Didier Vilagines

John Jiin Yang

Faisal D Al-Otaibi

Daniel J Harrigan

Bruce R Beadle

Hisham T Bassam

John Yang

Daniel Harrigan

This invention relates to a system and method for improving sulfur recovery from a Claus unit. More specifically, this invention provides a sorption based SOselective crosslinked polyionic liquid system and method for treating acid gas streams and minimizing sulfur dioxide emissions therefrom.

Reducing sulfur emissions of sulfur recovery plant by a sorption based SOselective crosslinked polyionic liquid system

A method for producing para-xylene (PX) includes introducing a Caromatic-containing composition to a xylene rerun column to separate the Caromatic-containing composition into a xylene-containing effluent and a heavy effluent and passing the xylene-containing effluent to a PX processing loop that includes a PX recovery unit operable to separate a PX product from the xylene-containing effluent, a membrane isomerization unit operable to convert a portion of the MX, OX, or both from the xylene-containing effluent to PX, an EB dealkylation unit operable to dealkylate EB from the xylene-containing effluent to produce benzene, toluene, and other Ccompounds, and a membrane separation unit operable to produce a permeate that is PX-rich and a retentate that is PX-lean. The permeate is passed to the PX recovery unit for recovery of PX, which the retentate is bypassed around the PX recovery unit circulated through the xylene processing loop.

Methods and systems for producing-xylene from C8-containing compositions

A method of making a multifunctional catalyst for upgrading pyrolysis oil includes contacting a hierarchical mesoporous zeolite support with a solution including at least a first metal catalyst precursor and a second metal catalyst precursor, each or both of which may include a heteropolyacid. The hierarchical mesoporous zeolite support may have an average pore size of from 2 nm to 40 nm. Contacting the hierarchical mesoporous zeolite support with the solution deposits or adsorbs the first metal catalyst precursor and the second catalyst precursor onto outer surfaces and pore surfaces of the hierarchical mesoporous zeolite support to produce a multifunctional catalyst precursor. The method further includes removing excess solution and calcining the multifunctional catalyst precursor to produce the multifunctional catalyst comprising at least a first metal catalyst and a second metal catalyst deposited on the outer surfaces and pore surfaces of the hierarchical mesoporous zeolite support.

Methods for producing mesoporous zeolite multifunctional catalysts for upgrading pyrolysis oil

Methods and systems for producing para-xylene from C8-containing compositions

A method for producing para-xylene (PX) includes introducing a C8 aromatic-containing composition to a xylene rerun column to separate the C8 aromatic-containing composition into a xylene-containing effluent and a heavy effluent and passing the xylene-containing effluent to a PX processing loop that includes a PX recovery unit operable to separate a PX product from the xylene-containing effluent, a membrane isomerization unit operable to convert a portion of the MX, OX, or both from the xylene-containing effluent to PX, an EB dealkylation unit operable to dealkylate EB from the xylene-containing effluent to produce benzene, toluene, and other Ccompounds, and a membrane separation unit operable to produce a permeate that is PX-rich and a retentate that is PX-lean. The permeate is passed to the PX recovery unit for recovery of PX, which the retentate is bypassed around the PX recovery unit circulated through the xylene processing loop.

Composite membranes include a polymer material that is selectively permeable to heavy (C) hydrocarbons over methane. The polymer material may be a modified poly(dimethylsilane) having a backbone including dimethylsiloxyl monomers, substituted methylsiloxyl monomers, and internal-network monomers. The substituted methylsiloxyl monomers may include phenylmethylsiloxyl monomers or C-Calkylmethylsiloxyl monomers such as octylmethylsiloxyl monomers. The polymer material may include silicon-alkyl linkages such as Si&#x2014;(CH)&#x2014;Si, where n&#x2265;2 that may create a structure that imparts desirable permeability and selectivity characteristics to the composite membrane. The polymer material may be cast onto a porous support material. The composite membranes may be incorporated into systems or methods for removing heavy hydrocarbons from natural gas.

Modified siloxane composite membranes for heavy hydrocarbon recovery

An enrichment apparatus and process for enriching a hydrogen sulfide concentration in an acid gas stream to create a hydrogen sulfide rich stream for feed to a Claus. The enrichment apparatus comprises a hydrocarbon selective separation unit operable to separate the acid gas stream into a hydrocarbon rich stream and a purified acid gas stream, wherein the acid gas stream comprises hydrogen sulfide, carbon dioxide, and hydrocarbons, a hydrogen sulfide selective separation unit operable to separate the purified acid gas stream to create the hydrogen sulfide rich stream and a hydrogen sulfide lean stream, the hydrogen sulfide rich stream having a concentration of hydrogen sulfide, and the Claus unit operable to recover sulfur from the carbon dioxide lean stream. The enrichment apparatus can include a carbon dioxide selective separation unit in fluid communication with the hydrogen sulfide selective separation unit, operable to separate the hydrogen sulfide rich stream.

Sulfur recovery process for treating low to medium mole percent hydrogen sulfide gas feeds with BTEX in a claus unit

Sulfur recovery process for treating low to medium mole percent hydrogen sulfide gas feeds with BTEX in a Claus unit

A method and apparatus for determining the salt concentration of crude oil using a single solvent that allows for improved safety and accuracy. The apparatus can include a pair of electrodes, a solvent storage container, a power source, a temperature sensor, a computer, and a display device. The method includes introducing a volume of the crude oil and a solvent to a mixing zone and mixing them together to form a homogenized mixture. The temperature and conductivity of the homogenized mixture are measured in order to determine the salt concentration of the homogenized mixture, and subsequently, the salt concentration of the crude oil.

Method, solvent formulation and apparatus for the measurement of the salt content in petroleum fluids

Growing community of inventors

Dhahran, Saudi Arabia

Veera Venkata R Tammana