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Matthew Thomas Pretz

from Osawatomie, KS
Age ~50
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Also known as:
Matthew T Pretz, Matt T Pretz, Dana T Pretz, Matt T Pertz
Related to:
Brain P Stinnett, 53George C Pretz, 69Steve PretzGayle J PretzDiane W Myers, 64George W PretzFrank Pretz, 74Arlene M Friedly, 75Juanita G Pretz, 71Dana M Pretz, 49Duane A FriedlyMatt PretzAlton Myers
Connected to:
Lisa M Pretz, 41Erich W Pretzel, 36Karen Pretzel, 43Brandon C Pretzer, 41Crystal Pretzer, 42Drew C Pretzer, 38Natalie O Pretzer, 40Nicky G Pretzer, 41Randy D Pretzer, 64Tiffany Pretzer, 34

Matthew Pretz Phones & Addresses

  • Osawatomie, KS
  • 137 Papaya St, Lake Jackson, TX 77566 (979) 285-9108
  • Lansdale, PA
  • Manhattan, KS
  • Brazoria, TX
  • Montgomery, PA

Publications

Us Patents

Process For The Preparation Of Hydrogenated Hydrocarbon Compounds

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US Patent:
20110046424, Feb 24, 2011
Filed:
Nov 5, 2010
Appl. No.:
12/940286
Inventors:
Matthew T. Pretz - Lake Jackson TX, US
Susan B. Domke - Rosharon TX, US
William M. Castor - Lake Jackson TX, US
Simon J. Hamper - Lake Jackson TX, US
International Classification:
C07C 5/42
US Classification:
585313
Abstract:
A process for the dehydrogenation of a paraffinic hydrocarbon compound, such as an alkane or alkylaromatic hydrocarbon compound to produce an unsaturated hydrocarbon compound, such as an olefin or vinyl aromatic compound or mixture thereof, in which a dehydrogenation catalyst contacts gaseous reactant hydrocarbons in a reactor at dehydrogenation conditions.

Process For The Preparation Of Hydrogenated Hydrocarbon Compounds

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US Patent:
20120123177, May 17, 2012
Filed:
Jan 11, 2012
Appl. No.:
13/348236
Inventors:
Matthew T. Pretz - Lake Jackson TX, US
Susan B. Domke - Rosharon TX, US
William M. Castor - Lake Jackson TX, US
Simon J. Hamper - Lake Jackson TX, US
International Classification:
C07C 5/333
US Classification:
585444, 585660
Abstract:
A process for the dehydrogenation of a paraffinic hydrocarbon compound, such as an alkane or alkylaromatic hydrocarbon compound to produce an unsaturated hydrocarbon compound, such as an olefin or vinyl aromatic compound or mixture thereof, in which a dehydrogenation catalyst contacts gaseous reactant hydrocarbons in a reactor at dehydrogenation conditions.

Process For The Preparation Of Hydrogenated Hydrocarbon Compounds

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US Patent:
20080194891, Aug 14, 2008
Filed:
Feb 4, 2005
Appl. No.:
10/586024
Inventors:
Matthew T. Pretz - Lake Jackson TX, US
Susan B. Domke - Rosharon TX, US
William M. Castor - Lake Jackson TX, US
Simon J. Hamper - Lake Jackson TX, US
International Classification:
C07C 5/02
US Classification:
585252
Abstract:
A process for the dehydrogenation of a paraffinic hydrocarbon compound, such as an alkane or alkylaromatic hydrocarbon compound to produce an unsaturated hydrocarbon compound, such as an olefin or vinyl aromatic compound or mixture thereof, in which a dehydrogenation catalyst contacts gaseous reactant hydrocarbons in a reactor at dehydrogenation conditions.

Methods For Operating Acetylene Hydrogenation Units During Integration Of Chemical Processing Systems For Producing Olefins

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US Patent:
20220251005, Aug 11, 2022
Filed:
Jun 8, 2020
Appl. No.:
17/621945
Inventors:
- Midland MI, US
Lin Luo - Sugar Land TX, US
Yu Liu - Lake Jackson TX, US
Matthew T. Pretz - Lake Jackson TX, US
Andrzej Malek - Midland MI, US
Assignee:
Dow Global Technologies LLC - Midland MI
International Classification:
C07C 7/167
C07C 7/00
C07C 7/04
C07C 4/04
C07C 5/333
B01J 23/62
B01D 45/16
B01D 3/14
Abstract:
A method for operating an acetylene hydrogenation unit of a steam cracking system that integrates a fluidized catalytic dehydrogenation (FCDh) effluent from a fluidized catalytic dehydrogenation (FCDh) system may include separating a cracked gas from the steam cracking system into at least a hydrogenation feed comprising at least acetylene, CO, and hydrogen, introducing the FCDh effluent to the separation system, combining the FCDh effluent with the cracked gas upstream of the separation system, or both. The method may include hydrogenating acetylene in the hydrogenation feed. Elevated CO concentration in the hydrogenation feed due to the FCDh effluent may reduce a reaction rate of acetylene hydrogenation. The acetylene hydrogenation unit may operate at an elevated temperature relative to normal operating temperatures when the portion of the FCDh effluent is not integrated, such that a concentration of acetylene in the hydrogenated effluent is less than a threshold acetylene concentration.

Methods For Operating Acetylene Hydrogenation Units In Integrated Steam Cracking And Fluidized Catalytic Dehydrogenation Systems

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US Patent:
20220227687, Jul 21, 2022
Filed:
Jun 8, 2020
Appl. No.:
17/621919
Inventors:
- Midland MI, US
Hangyao Wang - Pearland TX, US
Yu Liu - Lake Jackson TX, US
Matthew T. Pretz - Lake Jackson TX, US
Andrzej Malek - Midland MI, US
Assignee:
Dow Global Technologies LLC - Midland MI
International Classification:
C07C 5/333
C07C 4/04
C07C 7/167
B01J 23/62
Abstract:
A method for operating an acetylene hydrogenation unit in an integrated steam cracking-fluidized catalytic dehydrogenation (FCDh) system may include separating a cracked gas from a steam cracking system and an FCDh effluent from an FCDh system into a hydrogenation feed and an acetylene-depleted stream, the hydrogenation feed comprising at least hydrogen, CO, and acetylene. During normal operating conditions, at least 20% of the CO in the hydrogenation feed is from the cracked gas. The method may include contacting the hydrogenation feed with an acetylene hydrogenation catalyst to hydrogenate at least a portion of the acetylene in the hydrogenation feed to produce a hydrogenated effluent. The steam cracking is operated under conditions that increase CO production such that a concentration of CO in the cracked gas is great enough that when a flowrate of the FCDh effluent is zero, a CO concentration in the hydrogenation feed is at least 100 ppmv.

Methods For Operating Dehydrogenation Processes During Non-Normal Operating Conditions

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US Patent:
20210371357, Dec 2, 2021
Filed:
Aug 15, 2019
Appl. No.:
17/272741
Inventors:
- Midland MI, US
Matthew T. Pretz - Lake Jackson TX, US
Assignee:
Dow Global Technologies LLC - Midland MI
International Classification:
C07C 5/48
B01J 8/18
B01J 8/26
B01J 8/00
Abstract:
According to one or more embodiments disclosed herein, methods for operating dehydrogenation processes during non-normal operating conditions, such as at start-up, shut-down, system recycle, or unit trip, are described. The methods may include contacting a feed stream with a catalyst in a reactor portion of a reactor system to form a reactor effluent stream, separating at least a portion of the reactor effluent stream from the catalyst, passing the catalyst to a catalyst processing portion and processing the catalyst, wherein processing the catalyst comprises contacting the catalyst with oxygen, passing the catalyst from the processing portion to the reactor portion, wherein the catalyst exiting the processing portion comprises at least 0.001 wt. % oxygen, and contacting the catalyst with supplemental hydrogen, the contacting removing at least a portion of the oxygen from the catalyst by a combustion reaction.

Reactor Systems Comprising Fluid Recycling

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US Patent:
20210268464, Sep 2, 2021
Filed:
May 20, 2021
Appl. No.:
17/325489
Inventors:
- Midland MI, US
Matthew T. Pretz - Lake Jackson TX, US
Assignee:
Dow Global Technologies LLC - Midland MI
International Classification:
B01J 8/18
B01D 47/06
B01J 8/00
B01J 8/26
C10G 11/18
Abstract:
A method for processing a chemical stream includes contacting a feed stream with a catalyst in an upstream reactor section of a reactor having the upstream reactor section and a downstream reactor section, passing an intermediate product stream to the downstream reactor section, and introducing a riser quench fluid into the downstream reactor section, upstream reactor section, or transition section and into contact with the intermediate product stream and the catalyst to slow or stop the reaction. The method includes separating at least a portion of the catalyst from the product stream, passing the product stream to a product processing section, cooling the product stream, and separating a portion of the riser quench fluid from the product stream. The riser quench fluid separated from the product stream may be recycled back to the downstream reactor section, upstream reactor section, or transition section as the riser quench fluid.

Processes For Commencing Operations Of Fluidized Catalytic Reactor Systems

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US Patent:
20210260555, Aug 26, 2021
Filed:
Jun 26, 2019
Appl. No.:
17/256690
Inventors:
- Midland MI, US
Matthew T. Pretz - Lake Jackson TX, US
Assignee:
Dow Global Technologies LLC - Midland MI
International Classification:
B01J 8/26
C10G 9/32
B01J 8/00
B01J 8/12
C10G 2/00
C10G 11/18
C10G 11/22
Abstract:
A process for commencing a continuous reaction in a reactor system includes introducing a catalyst to a catalyst processing portion of the reactor system, the catalyst initially having a first temperature of 500 C or less, and contacting the catalyst at the first temperature with a commencement fuel gas stream, which includes at least 80 mol % commencement fuel gas, in the catalyst processing portion. Contacting of the catalyst with the commencement fuel gas stream causes combustion of the commencement fuel gas. The process includes maintaining the contacting of the catalyst with the commencement fuel gas stream until the temperature of the catalyst increases from the first temperature to a second temperature at which combustion of a regenerator fuel source maintains an operating temperature range in the catalyst processing portion.
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Matthew Thomas Pretz from Osawatomie, KS, age ~50 Get Report