Irving, TX, United States
Irving, TX, United States

Exxon Mobil Corp., or ExxonMobil, is an American multinational oil and gas corporation headquartered in Irving, Texas, United States. It is a direct descendant of John D. Rockefeller's Standard Oil company, and was formed on November 30, 1999, by the merger of Exxon and Mobil . It is affiliated with Imperial Oil which operates in Canada.The world's 5th largest company by revenue, ExxonMobil is also the second largest publicly traded company by market capitalization. The company was ranked No. 6 globally in Forbes Global 2000 list in 2014. ExxonMobil's reserves were 25.2 billion BOE at the end of 2013 and the 2007 rates of production were expected to last more than 14 years. With 37 oil refineries in 21 countries constituting a combined daily refining capacity of 6.3 million barrels , ExxonMobil is the largest refiner in the world, a title that was also associated with Standard Oil since its incorporation in 1870.ExxonMobil is the largest of the world's supermajors with daily production of 3.921 million BOE. In 2008, this was approximately 3 percent of world production, which is less than several of the largest state-owned petroleum companies. When ranked by oil and gas reserves, it is 14th in the world—with less than 1 percent of the total.ExxonMobil has been subject to numerous criticisms, including the lack of speed during its cleanup efforts after the 1989 Exxon Valdez oil spill in Alaska, widely considered to be one of the world's worst oil spills in terms of damage to the environment. ExxonMobil has drawn criticism for funding organizations that are skeptical of the scientific opinion that global warming is caused by the burning of fossil fuels. Questions have been raised about the legality of the company’s foreign business practices. Critics note that ExxonMobil increasingly drills in terrains leased by dictatorships. The company has also been the target of accusations of improperly dealing with human rights issues, influence on American foreign policy, and its impact on the future of nations. Wikipedia.


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Patent
ExxonMobil | Date: 2016-08-19

Systems and methods are provided for slurry hydroconversion of a heavy oil feedstock, such as an atmospheric or vacuum resid, in the presence of an enhanced or promoted slurry hydroconversion catalyst system. The slurry hydroconversion catalyst system can be formed from a) a Group VIII non-noble metal catalyst precursor/concentrate (such as an iron-based catalyst precursor/concentrate) and b) a Group VI metal catalyst precursor/concentrate (such as a molybdenum-based catalyst precursor/concentrate) and/or a Group VI metal sulfided catalyst.


In various aspects, apparatuses, systems, and methods are provided for performing two stage separation of CO2 from a gaseous stream. The first stage adsorbent can be comprised of a plurality of cylindrical or substantially cylindrical rings. The first stage adsorbent can be comprised of a metal organic framework. The second stage adsorbent can be subject to a displacement desorption process. The second stage adsorbent can be comprised of a support and a metal compound selected from the group consisting of alkali or alkaline earth. The first and second stage adsorbent can be arranged concentrically for space and efficiency considerations.


Patent
ExxonMobil | Date: 2016-09-07

Systems and methods are provided for performing a swing adsorption process, such as a temperature swing adsorption process. During portions of a swing cycle where one or more components are being desorbed, a vibration or other perturbation can be induced in the adsorbent and/or in the adsorbent structure to assist with desorption. Inducing a vibration or other perturbation in the adsorbent structure can provide a way to introduce additional energy into the adsorbent system without having to increase the temperature of the adsorbent structure.


Patent
ExxonMobil | Date: 2016-09-23

A heat transfer fluid can be used as part of a multi-phase adsorption environment to allow for improved separations of gas components using a solid adsorbent. The heat transfer fluid can reduce or minimize the temperature increase of the solid adsorbent that occurs during an adsorption cycle. Reducing or minimizing such a temperature increase can enhance the working capacity for an adsorbent and/or enable the use of adsorbents that are not practical for commercial scale adsorption using conventional adsorption methods. The multi-phase adsorption environment can correspond to a trickle bed environment, a slurry environment, or another convenient environment where at least a partial liquid phase of a heat transfer fluid is present during gas adsorption by a solid adsorbent.


Patent
ExxonMobil | Date: 2016-08-18

The invention relates to catalysts and their use in processes for dehydrocyclization of light paraffinic hydrocarbon feedstock to higher-value hydrocarbon, such as aromatic hydrocarbon, to dehydrocyclization catalysts useful in such processes, and to the methods of making such catalysts. One of more of the dehydrocyclization catalysts comprising a crystalline aluminosilicate zeolite having a constraint index of less than or equal to about 12, at least one Group 3 to Group 13 metal of the IUPAC Periodic Table and phosphorous.


Bulk metallic catalyst precursor compositions are provided that include a Group VIB metal, a Group VIII metal, an organic-compound based component, and an organo-metalloxane polymer or gel. The catalyst precursor compositions can further include a binder. Amorphous sulfided catalysts formed from the catalyst precursor compositions are also provided. The catalyst precursor compositions can have a surface area of about 20 m^(2)/g or less.


Patent
ExxonMobil | Date: 2016-11-08

A process for producing para-xylene (PX) comprises supplying a hydrocarbon feed comprising xylenes and ethylbenzene (EB) to a PX recovery unit, where a PX-rich stream and at least one PX-depleted stream are recovered from the feed. The PX-depleted stream is then separated into an EB-rich stream and an EB-depleted stream in a divided wall column. The EB-depleted stream is then isomerized under at least partial liquid phase conditions to produce a first isomerized stream having a higher PX concentration than the PX-depleted stream, and the EB-rich stream is isomerized under at least partial vapor phase conditions to produce a second isomerized stream having a higher PX concentration than the PX-depleted stream. The first and second isomerized streams are then recycled to the PX recovery unit to recover additional PX and the process is repeated to define a so-called xylene isomerization loop.


Patent
ExxonMobil | Date: 2016-11-08

The present invention is an improved process and apparatus for producing para-xylene, particularly with respect to a process that involves the methylation of toluene and/or benzene to selectively produce para-xylene, wherein streams having differing amounts of ethylbenzene are separately treated in the recovery of para-xylene. A first hydrocarbon feed comprising xylenes and ethylbenzene is provided to a first para-xylene adsorption section, and a second hydrocarbon feed comprising xylenes and less EB than the first hydrocarbon feed is provided to a second para-xylene adsorption section. Segregating the feeds with differing ethylbenzene contents increases the overall efficiency of the adsorption of para-xylene by the adsorption units. Efficiency and energy savings may be further improved by subjecting the lower-content ethylbenzene stream to liquid phase isomerization.


A process and catalyst system is disclosed for producing para-xylene from a C_(8 )hydrocarbon mixture comprising ethylbenzene and at least one xylene isomer other than para-xylene. The process modifies the conventional process by operating with a higher weight hourly space velocity, lower pressure and lower hydrogen partial pressure, which allows production of on-specification benzene product without penalty with respect to ethylbenzene conversion, para-xylene approach to equilibrium or xylene losses. The catalyst system comprises a first catalyst bed comprising a first zeolite having a constraint index from 1 to 12 and an average crystal size from 0.1 to 1 micron and a platinum hydrogenation component, and a second catalyst bed comprising a second zeolite having a constraint index ranging from 1 to 12 and an average crystal size of less than 0.1 micron and a rhenium hydrogenation component.


Patent
ExxonMobil | Date: 2017-03-22

The present application is directed to a method for preparing gaseous utility streams from gaseous process streams, particularly, removing oil contamination from such streams prior to use in a dry gas seal. The methods and systems may include at least one kinetic swing adsorption process including pressure swing adsorption, temperature swing adsorption, calcination, and inert purge processes to treat gaseous streams for use in dry gas seals of rotating equipment such as compressors, turbines and pumps and other utilities. The adsorbent materials used include a high surface area solid structured microporous and mesoporous materials.

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