Jesse Garland Taylor

US Patent:

7915193, Mar 29, 2011

Filed:

Nov 18, 2008

Appl. No.:

12/272960

Inventors:

Belma Demirel - Longmont CO, US
Charles B. Benham - Arvada CO, US
Dan Fraenkel - Boulder CO, US
Richard Bley - Longmont CO, US
Jesse W. Taylor - Westminster CO, US
Bahman Rejai - Littleton CO, US
Sara Rolfe - Loveland CO, US
Harold A. Wright - Longmont CO, US

Assignee:

Rentech, Inc. - Los Angeles CA

International Classification:

B01J 23/42

US Classification:

502158, 502336, 502327, 502326, 502302, 518715, 518700

Abstract:

A method of activating an iron Fischer-Tropsch catalyst by introducing an inert gas into a reactor comprising a slurry of the catalyst at a first temperature, increasing the reactor temperature from the first temperature to a second temperature at a first ramp rate, wherein the second temperature is in the range of from about 150 C. to 250 C. , introducing synthesis gas having a ratio of H:CO to the reactor at a space velocity, and increasing the reactor temperature from the second temperature to a third temperature at a second ramp rate, wherein the third temperature is in the range of from about 270 C. to 300 C. The iron Fischer-Tropsch catalyst may be a precipitated unsupported iron catalyst, production of which is also provided.

US Patent:

8530366, Sep 10, 2013

Filed:

Jan 5, 2011

Appl. No.:

12/984902

Inventors:

Harold A. Wright - Longmont CO, US
Belma Demirel - Longmont CO, US
Sergio Mohedas - Westminster CO, US
Bahman Rejai - Littleton CO, US
Ray Huang - Denver CO, US
Deena Ferdous - Aurora CO, US
Jesse W. Taylor - Baldwinsville NY, US
Dawid J. Duvenhage - Evergreen CO, US
Sara L. Rolfe - Loveland CO, US

Assignee:

Rentech, Inc. - Los Angeles CA

International Classification:

B01J 20/34
C07C 27/00

US Classification:

502 34, 502 20, 502 21, 518700

Abstract:

A method of preparing a spray dried catalyst by combining spray dried catalyst particles with wax so the spray dried catalyst particles are coated with wax, yielding wax coated catalyst particles, and shaping the wax coated catalyst to provide shaped wax coated catalyst. A method of activating Fischer-Tropsch catalyst particles containing oxides by contacting the catalyst particles with a reducing gas in an activation vessel to produce an activated catalyst, wherein contacting is performed in the absence of a liquid medium under activation conditions. A system for activating a Fischer-Tropsch catalyst containing an activation reactor configured to introduce an activation gas to a fixed or fluidized bed of the Fischer-Tropsch catalyst in the absence of a liquid medium and at least one separation device configured to separate a gas stream comprising entrained catalyst fines having an average particle size below a desired cutoff size from the activation reactor.

US Patent:

20070142483, Jun 21, 2007

Filed:

Dec 16, 2005

Appl. No.:

11/303451

Inventors:

James White - Boulder CO, US
Jesse Taylor - Westminster CO, US

International Classification:

C07C 27/26

US Classification:

518726000

Abstract:

Catalyst compositions and methods for F-T synthesis which exhibit high CO conversion with minor levels (preferably less than 35% and more preferably less than 5%) or no measurable carbon dioxide generation. F-T active catalysts are prepared by reduction of certain oxygen deficient mixed metal oxides.

US Patent:

20090062108, Mar 5, 2009

Filed:

Aug 26, 2008

Appl. No.:

12/198459

Inventors:

Belma Demirel - Longmont CO, US
Charles B. Benham - Arvada CO, US
Dan Fraenkel - Boulder CO, US
Richard A. Bley - Longmont CO, US
Jesse W. Taylor - Westminster CO, US
Sara L. Rolfe - Loveland CO, US
Harold A. Wright - Longmont CO, US

Assignee:

RENTECH, INC. - Los Angeles CA

International Classification:

B01J 23/72
B01J 21/06
B01J 23/02
B01J 31/28

US Classification:

502158, 502331, 502245, 502174, 502201

Abstract:

A method of strengthening a precipitated unsupported iron catalyst by: preparing a precipitated unsupported iron catalyst containing copper and potassium; adding a solution comprising a structural promoter to the previously prepared catalyst; drying the mixture; and calcining the dried catalyst.A method for preparing an iron catalyst, the method comprising: precipitating a catalyst precursor comprising iron phases selected from hydroxides, oxides, and carbonates; adding a promoter to the catalyst precursor to yield a promoted precursor; drying the promoted precursor to yield dried catalyst; and calcining the dried catalyst, wherein the catalyst further comprises copper and potassium.A method of preparing a strengthened precipitated iron catalyst comprising: co-precipitating iron, copper, magnesium, and aluminum; washing the precipitate; alkalizing the precipitate; and drying the precipitate to yield a dried catalyst precursor. The dried catalyst precursor may be calcined and treated with a gas comprising carbon monoxide.

US Patent:

20090134008, May 28, 2009

Filed:

Oct 24, 2008

Appl. No.:

12/257811

Inventors:

James H. White - Boulder CO, US
Jesse W. Taylor - Westminster CO, US

International Classification:

B01D 15/00
B01J 20/34
B01J 29/06
B01J 20/02
B01J 19/10
B01D 53/14

US Classification:

20415742, 502 34, 502 60, 502400, 502 20, 95144, 95128, 95141, 95140, 95139, 210660, 95134

Abstract:

Provided herein are adsorbents and methods of using the adsorbents to at least partially remove one or more adsorbates. In an aspect, an adsorbate within a phase is at least partially removed by providing an adsorbent material and contacting the adsorbent material with the phase having an adsorbate, to at least partially remove the adsorbate. Various adsorbents are disclosed having the chemical formula REBB′B″O, where RE is RE is a rare earth metal, B is a trivalent metal ion, B′ is a transition metal ion or an alkaline earth element, B″ is a transition metal ion, 0≦x≦0.25, 0≦y≦0.95, 0≦z≦0.75, w is a number which results in charge balance, and x+y+z

US Patent:

20090298678, Dec 3, 2009

Filed:

May 29, 2009

Appl. No.:

12/474552

Inventors:

Belma DEMIREL - Longmont CO, US
Jesse W. TAYLOR - Westminster CO, US
Pandurang V. NIKRAD - Boulder CO, US
Sara L. ROLFE - Loveland CO, US
Dawid J. DUVENHAGE - Evergreen CO, US
Harold A. WRIGHT - Longmont CO, US

Assignee:

RENTECH, INC. - Los Angeles CA

International Classification:

B01J 27/25

US Classification:

502201

Abstract:

A method of producing a catalyst precursor comprising iron phases by co-feeding a ferrous nitrate solution and a precipitation agent into a ferric nitrate solution to produce a precipitation solution having a desired ferrous:ferric nitrate ratio and from which catalyst precursor precipitates; co-feeding a ferric nitrate solution and a precipitation agent into a ferrous nitrate solution to produce a precipitation solution having a desired ferrous:ferric nitrate ratio and from which catalyst precursor precipitates; or precipitating a ferrous precipitate from a ferrous nitrate solution by contacting the ferrous nitrate solution with a first precipitation agent; precipitating a ferric precipitate from ferric nitrate solution by contacting the ferric nitrate solution with a second precipitation agent and combining the ferrous and ferric precipitates to form the catalyst precursor, wherein the ratio of ferrous:ferric precipitates is a desired ratio.

US Patent:

20090298681, Dec 3, 2009

Filed:

May 29, 2009

Appl. No.:

12/474440

Inventors:

Pandurang V. Nikrad - Boulder CO, US
Jesse W. Taylor - Westminster CO, US
Richard A. Bley - Longmont CO, US
Danny M. Dubuisson - Longmont CO, US
Sara L. Rolfe - Loveland CO, US
Belma Demirel - Longmont CO, US
Dawid J. Duvenhage - Evergreen CO, US
Harold A. Wright - Longmont CO, US

Assignee:

RENTECH, INC. - Los Angeles CA

International Classification:

B01J 21/08
C09K 3/00
B01J 23/745
B01J 21/06
B01J 23/78
B01J 23/72
B01J 21/02

US Classification:

502243, 25218233, 502338, 502258, 502328, 502331, 502336

Abstract:

A method of producing stable ferrous nitrate solution by dissolving iron in nitric acid to form a ferrous nitrate solution and maintaining the solution at a first temperature for a first time period, whereby the Fe(II) content of the ferrous nitrate solution changes by less than about 2% over a second time period. A method of producing stable Fe(II)/Fe(III) nitrate solution comprising ferrous nitrate and ferric nitrate and having a desired ratio of ferrous iron to ferric iron, including obtaining a stable ferrous nitrate solution; dissolving iron in nitric acid to form a ferric nitrate solution; maintaining the ferric nitrate solution at a second temperature for a third time period; and combining amounts of stable ferrous nitrate solution and ferric nitrate solution to produce the stable Fe(II)/Fe(III) nitrate solution. A method of preparing an iron catalyst is also described.

US Patent:

20170103389, Apr 13, 2017

Filed:

Oct 7, 2016

Appl. No.:

15/289079

Inventors:

- Boulder CO, US
Jesse Daniel Taylor - Boulder CO, US

International Classification:

G06Q 20/38
G06Q 20/10
G06Q 20/40

Abstract:

A system for performing electronic payment validation and authorization wherein a user of an electronic device transmits transaction data to an electronic payment validation and authorization system. The same user of the electronic device may nearly simultaneously transmit a cryptographic hash of transaction data to a merchant who uses a payment processing system to process the transactions. In this example, the payment-processing system may be an electronic payment system operated by the merchant and configured to accept transaction data generated by an electronic device. A payment processing system may cryptographically sign the hash and send the resulting data to an electronic payment validation and authorization system. After both data parts are received by an electronic payment validation and authorization system, validation and decryption may be performed and new transaction data which may include the user card data may then be sent to a payment processing system. The results of the transaction may then be sent to an electronic payment validation and authorization system and a merchant.