An engine system includes an engine configured to combust liquid natural gas and generate an exhaust gas comprising methane; a catalytic reactor coupled downstream of the engine and configured to convert methane into a product through one or more of oxidative coupling of methane (OCM) reaction and steam methane reforming (SMR) reaction; and a recirculation loop configured to recirculate at least a part of the product back to the engine.

Disclosed herein are systems and processes for the conversion of a methane feedstock to C.sub.2+ hydrocarbons.

Disclosed herein are systems and processes for the conversion of a methane feedstock to C.sub.2+ hydrocarbons.

The invention relates to a composition containing an oxide supported oxidative coupling of methane catalyst having an excellent balance of catalytic activity and selectivity while retaining desired levels mechanical stability suitable for commercial reactor application. Particularly, the inventive catalyst is an oxide supported catalyst with the oxide catalyst support having a spherical diameter of less than 2 mm and a surface area of less than less than 9.5 m.sup.2/g while retaining a water sorption volume of at least 0.2 cc/g. The invention further provides a method for preparing such a composition containing an oxide supported catalyst, using a combination of thermal treatment of the oxide catalyst support, active component impregnation and followed up by calcination. Additionally, the invention also describes a process for producing C.sub.2+ hydrocarbons, using such a catalyst composition.

The invention relates to a composition containing an oxide supported oxidative coupling of methane catalyst having an excellent balance of catalytic activity and selectivity while retaining desired levels mechanical stability suitable for commercial reactor application. Particularly, the inventive catalyst is an oxide supported catalyst with the oxide catalyst support having a spherical diameter of less than 2 mm and a surface area of less than less than 9.5 m.sup.2/g while retaining a water sorption volume of at least 0.2 cc/g. The invention further provides a method for preparing such a composition containing an oxide supported catalyst, using a combination of thermal treatment of the oxide catalyst support, active component impregnation and followed up by calcination. Additionally, the invention also describes a process for producing C.sub.2+ hydrocarbons, using such a catalyst composition.

This invention relates to processes and systems for converting acyclic hydrocarbons to alkenes, cyclic hydrocarbons and/or aromatics, for example converting acyclic C.sub.5 hydrocarbons to cyclopentadiene in a reactor system. The process includes heating an electrically-conductive reaction zone by applying an electrical current to the first electrically-conductive reaction zone; and contacting a feedstock comprising acyclic hydrocarbons with a catalyst material in the electrically-conductive reaction zone under reaction conditions to convert at least a portion of the acyclic hydrocarbons to an effluent comprising alkenes, cyclic hydrocarbons, and/or aromatics.

This invention relates to processes and systems for converting acyclic hydrocarbons to alkenes, cyclic hydrocarbons and/or aromatics, for example converting acyclic C.sub.5 hydrocarbons to cyclopentadiene in a reactor system. The process includes heating an electrically-conductive reaction zone by applying an electrical current to the first electrically-conductive reaction zone; and contacting a feedstock comprising acyclic hydrocarbons with a catalyst material in the electrically-conductive reaction zone under reaction conditions to convert at least a portion of the acyclic hydrocarbons to an effluent comprising alkenes, cyclic hydrocarbons, and/or aromatics.

Processes for conversion of methane and ethane into syngas and ethylene are provided. An exemplary process can include providing a reaction mixture of methane, ethane, oxygen, and carbon dioxide and contacting the reaction mixture with a catalyst that includes at least one metal oxide. The processes can be combined processes in which oxidative dry reforming of methane and dehydrogenation of ethane to ethylene with carbon dioxide and oxygen occur concurrently.

Processes for conversion of methane and ethane into syngas and ethylene are provided. An exemplary process can include providing a reaction mixture of methane, ethane, oxygen, and carbon dioxide and contacting the reaction mixture with a catalyst that includes at least one metal oxide. The processes can be combined processes in which oxidative dry reforming of methane and dehydrogenation of ethane to ethylene with carbon dioxide and oxygen occur concurrently.

Processes for conversion of methane and ethane into syngas and ethylene are provided. An exemplary process can include providing a reaction mixture of methane, ethane, oxygen, and carbon dioxide and contacting the reaction mixture with a catalyst that includes at least one metal oxide. The processes can be combined processes in which oxidative dry reforming of methane and dehydrogenation of ethane to ethylene with carbon dioxide and oxygen occur concurrently.