Exxonmobil Chemical Patents Inc.

Exxonmobil Technology and Engineering Company

Kevin B Daly

Federico Barrai

Vetkav Rajagopalan Eswaran

James Richardson Lattner

Patrick Loring Hanks

Hari Nair

Everett J O'Neal

Helge Jaensch

Etienne Mazoyer

Jerard T Smith

In at least one embodiment, a reactor includes a reactor body. A first internal heat exchanger and a second internal heat exchanger are within the reactor body. One or more slabs of one or more static inserts are disposed between the first internal heat exchanger and the second internal heat exchanger. A plurality of flow paths is defined between the plurality of flow channels of the first internal heat exchanger and the plurality of flow channels of the second internal heat exchanger. Each static insert is configured to rotate or translate a flow path so that on average, the existing boundary layers formed in the first heat exchanger are moved away from the channel walls by a distance of equal or greater than the thickness of the boundary layers at the exit of the first heat exchanger.

Reactor for polymerization processes

In one embodiment, a reactor includes a reactor body and a reactor head. The reactor head has a reactor head body and one or more inlets disposed tangentially to the reactor head body. In one embodiment, a polymerization process for forming polymer includes introducing in a first direction a stream including a monomer. The stream and a catalyst system are flowed in a second direction through at least one internal heat exchanger. The second direction is substantially orthogonal to the first direction. The reaction zone includes at least one internal heat exchanger. At least a portion of the monomer of the stream is polymerized in the reaction zone to produce a polymer product. The polymer product is recovered from the reaction zone.

Reactor for polymerization process

A system includes a photobioreactor that provides a channel configured to contain an algae slurry, a duct positioned adjacent the channel and configured to convey a gas, and a barrier separating the duct from the channel and providing one or more apertures to allow a portion of the gas to be injected into the algae slurry from the duct.

Bioreactor with integrated flue gas distribution

Reverse flow reactor (RFR) apparatuses exhibiting asymmetric feed profiles and improved purge mode efficiency, and methods of using same to transform a hydrocarbon feed into a pyrolysed hydrocarbon product are disclosed. The RFR apparatus includes an RFR body with a reaction zone having at least one bed. The RFR body has a central vertical axis and flanked by first and second void spaces. The method utilizes at least two oxygen-containing feeds, a combustion fuel feed, a purge feed, and a hydrocarbon pyrolysis feed. The RFR apparatus can cycle between an exothermic heating mode (heated to &#x2265;700&#xb0; C. while maintaining a pressure drop across the reaction zone of &#x2264;100 kPag), a purge mode (purging oxygen using &#x3c;6 bed volumes of purge gas to achieve a residual oxygen level of &#x2264;20 ppm while maintaining a pressure drop of &#x2264;35 kPag), and an endothermic pyrolysis mode (feeding pyrolysis hydrocarbons through the reaction zone to form pyrolysis products, while maintaining a pressure drop across the reaction zone of &#x2264;70 kPag).

Reverse flow reactors having high purge efficiencies while containing asymmetric feeds, methods of using same, and pyrolysis products made from same

Reverse flow reactor (RFR) apparatuses exhibiting asymmetric feed profiles and improved flow distribution during heating mode and/or pyrolysis mode operation, and methods of using same to transform a hydrocarbon feed into a pyrolysed hydrocarbon product are disclosed. The RFR apparatus includes an RFR body with a reaction zone having at least one bed. The RFR body has a central vertical axis and is flanked by first and second void spaces. The method utilizes at least two oxygen-containing feeds, a combustion fuel feed, a purge feed, and a hydrocarbon pyrolysis feed. The RFR apparatus can cycle between an exothermic heating mode (heated to &#x2265;700&#xb0; C. while maintaining a pressure drop across the reaction zone of &#x2264;100 kPag), a purge mode (purging oxygen using &#x3c;6 bed volumes of purge gas while maintaining a pressure drop of &#x2264;35 kPag), and an endothermic pyrolysis mode (feeding pyrolysis hydrocarbons through the reaction zone to form pyrolysis products, while maintaining a pressure drop across the reaction zone of &#x2264;70 kPag).

Reverse flow reactors having low maldistribution parameter while containing asymmetric feeds, methods of using same, and pyrolysis products made from same

Processes for producing neopentane are disclosed herein. Processes comprise demethylating a C-Calkane within a shell and tube reactor to produce a demethylation product including at least 10 wt % neopentane based on the weight of the demethylation product.

Growing community of inventors

Jersey City, NJ, United States of America

Kevin B Daly