Brian J Dennis

US Patent:

8404005, Mar 26, 2013

Filed:

Sep 10, 2009

Appl. No.:

12/556857

Inventors:

Brian H. Dennis - Arlington TX, US
Richard E. Billo - Colleyville TX, US
Christopher R. Oliver - Commerce Township MI, US
John W. Priest - Dallas TX, US
Elinor Kolesar - Ft. Worth TX, US

Assignee:

Board of Regents, The University of Texas System - Austin TX

International Classification:

C10L 1/18
C11C 3/04

US Classification:

44308, 44307, 554169, 554167, 554170

Abstract:

In a method and system to produce biodiesel using an improved catalytic transesterification process, a first reactant and a second reactant are dispersed to form a laminar slug flow pattern within a microchannel of a microreactor, the first reactant and the second reactant being immiscible. The first reactant and the second reactant are mixed, thereby triggering a reaction between them to produce the biodiesel and glycerol, the mixing being convection-enhanced by shear stress induced circulation occurring within each slug of the reactants. The reaction takes place under a pressure that is less than 5 psi and under a temperature that is less than 70 degrees Celsius. Separation of the glycerol from the biodiesel occurs simultaneously with the mixing. Several microreactors are coupled in parallel to improve throughput of the biodiesel.

US Patent:

20200398242, Dec 24, 2020

Filed:

Mar 4, 2019

Appl. No.:

16/969874

Inventors:

- Euless TX, US
- Austin TX, US
Brian Hodges - Euless TX, US
Charles KOETTING - Euless TX, US
Frederick M. MacDONNELL - Arlington TX, US
Brian DENNIS - Arlington TX, US

Assignee:

C-KOE Metals, L.P. - Euless TX
Board of Regents, The University of Texas System - Austin TX

International Classification:

B01J 8/34
C01F 7/56
B01J 8/44
B01J 19/24
B01J 8/00

Abstract:

A method of producing aluminum chlorohydrate comprises adding small form aluminum metal pellets to a reactant receiving space of a reactor tank to form a pellet bed; adding aqueous hydrochloric acid to the reactant receiving space of the reactor tank; and continuously circulating the aqueous hydrochloric acid through the pellet bed. In some embodiments, the continuously circulating aqueous hydrochloric acid dispels reaction gases from the pellet bed. Methods described herein can, in some cases, further comprise consecutively adding additional small form aluminum metal pellets to the reactant receiving space of the reactor tank as the small form aluminum metal pellets are consumed in the pellet bed.

US Patent:

20190233954, Aug 1, 2019

Filed:

Jan 29, 2019

Appl. No.:

16/261484

Inventors:

- Austin TX, US
Wilaiwan Chanmanee - Grand Prairie TX, US
Brian Dennis - Arlington TX, US
Krishnan Rajeshwar - Arlington TX, US

Assignee:

Board and Regents, The University of Texas System - Austin TX

International Classification:

C25B 11/04
C25B 11/03
C25B 3/04

Abstract:

An electrochemical reactor for use with a liquid electrolyte is capable of generating gaseous products. An electrically conducting porous layer that is hydrophilic on the catalyst side and hydrophobic on the gas side are utilized. These different surface properties promote the transport of product gases formed at the catalyst through the porous layer to the gas side. The catalyst is formed from a hybrid CuO—CuBr film that has a high selectivity for ethylene gas from reacting COand water in an electrochemical cell.

US Patent:

20160340593, Nov 24, 2016

Filed:

Jan 16, 2015

Appl. No.:

15/111636

Inventors:

- Austin TX, US
Brian Dennis - Arlington TX, US
Wilaiwan Chanmanee - Arlington TX, US

International Classification:

C10G 2/00
C07C 41/01
C07C 29/159
B01J 23/75
B01J 35/00

Abstract:

The present invention is directed at an improved process for generating heavier hydrocarbons from carbon dioxide and/or carbon monoxide and water using tandem photochemical-thermochemical catalysis in a single reactor. Catalysts of the present disclosure can comprise photoactive material and deposits of conductive material interspersed on the surface thereof. The conductive material can comprise Fischer-Tropsch type catalysts.

US Patent:

20160040072, Feb 11, 2016

Filed:

Jan 12, 2014

Appl. No.:

14/776423

Inventors:

- Austin TX, US
Brian H. Dennis - Arlington TX, US
Richard E. Billo - Irving TX, US
John W. Priest - Dallas TX, US

International Classification:

C10G 1/06
C10G 3/00
C10G 1/08

Abstract:

Methods for the conversion of lignites, subbituminous coals and other carbonaceous feedstocks into synthetic oils, including oils with properties similar to light weight sweet crude oil using a solvent derived from hydrogenating oil produced by pyrolyzing lignite are set forth herein. Such methods may be conducted, for example, under mild operating conditions with a low cost stoichiometric co-reagent and/or a disposable conversion agent.