John R. Mayer Jr.
Engineering at Olmstead Row, Spring, TX

License number
Louisiana PE.0020581
Issued Date
May 31, 1983
Expiration Date
Sep 30, 2017
Category
Civil Engineer
Type
Chemical Engineer
Address
Address
15 Olmstead Row, Spring, TX 77380

Professional information

John Mayer Photo 1

Hydrocarbon/Oxygen Industrial Gas Mixer With Water Mist

US Patent:
2013020, Aug 15, 2013
Filed:
Feb 5, 2013
Appl. No.:
13/759582
Inventors:
Dow Technology Investments LLC - , US
Christopher P. Christenson - Lake Jackson TX, US
Charles W. Lipp - Lake Jackson TX, US
John R. Mayer - The Woodlands TX, US
Thomas J. Kling - Midland MI, US
Victor R. Fey - West Bloomfield MI, US
Laurence G. Britton - Charleston WV, US
Michael J. Rangitsch - Saginaw MI, US
Michael L. Hutchison - Poca WV, US
Assignee:
DOW TECHNOLOGY INVESTMENTS LLC - Midland MI
International Classification:
B01J 19/26
US Classification:
3661781, 422224
Abstract:
A hydrocarbon-containing gas is mixed with an oxygen-containing gas in a gas mixer in the presence of a water mist. The water mist surrounds and contacts entrained particles in either the oxygen-containing gas stream or the hydrocarbon-containing gas stream. The water acts to suppress and prevent ignition of the hydrocarbon gas in the mixer by serving as a sink for heat created by energetic collisions between such particles and structures within the gas mixer. The water mist also acts to quench ignition caused by such collisions. The water mist can be introduced into the gas mixer in a number of different configurations, including via nozzles injecting a mist into a hydrocarbon gas manifold or an oxygen gas manifold, nozzles placed within the gas mixer adjacent to ends of the oxygen supply pipes, and nozzles placed coaxially within the oxygen supply pipes in the gas mixer.


John Mayer Photo 2

Hydrocarbon/Oxygen Industrial Gas Mixer With Water Mist

US Patent:
8404190, Mar 26, 2013
Filed:
Nov 7, 2008
Appl. No.:
12/678274
Inventors:
Harvey E. Andresen - Luling LA, US
Christopher P. Christenson - Lake Jackson TX, US
Charles W. Lipp - Lake Jackson TX, US
John R. Mayer - The Woodlands TX, US
Thomas J. Kling - Midland MI, US
Victor R. Fey - West Bloomfield MI, US
Laurence G. Britton - Charleston WV, US
Michael J. Rangitsch - Saginaw MI, US
Michael L. Hutchison - Poca WV, US
Assignee:
Dow Technology Investments LLC - Midland MI
International Classification:
B01J 19/26, C07D 301/08
US Classification:
422224, 549523
Abstract:
A hydrocarbon-containing gas is mixed with an oxygen-containing gas in a gas mixer in the presence of a water mist. The water mist surrounds and contacts entrained particles in either the oxygen-containing gas stream or the hydrocarbon-containing gas stream. The water acts to suppress and prevent ignition of the hydrocarbon gas in the mixer by serving as a sink for heat created by energetic collisions between such particles and structures within the gas mixer. The water mist also acts to quench ignition caused by such collisions. The water mist can be introduced into the gas mixer in a number of different configurations, including via nozzles injecting a mist into a hydrocarbon gas manifold or an oxygen gas manifold, nozzles placed within the gas mixer adjacent to ends of the oxygen supply pipes, and nozzles placed coaxially within the oxygen supply pipes in the gas mixer.


John Mayer Photo 3

Oxygen/Hydrocarbon Rapid (High Shear) Gas Mixer, Particularly For The Production Of Ethylene Oxide

US Patent:
8404189, Mar 26, 2013
Filed:
Nov 12, 2008
Appl. No.:
12/678270
Inventors:
Harvey E. Andresen - Luling LA, US
Christopher P. Christenson - Lake Jackson TX, US
Charles W. Lipp - Lake Jackson TX, US
John R. Mayer - The Woodlands TX, US
Thomas J. Kling - Midland MI, US
Victor R. Fey - West Bloomfield MI, US
Laurence G. Britton - Charleston WV, US
Michael J. Rangitsch - Saginaw MI, US
Michael L. Hutchison - Poca WV, US
Assignee:
Dow Technology Investments LLC - Midland MI
International Classification:
B01F 3/02, B01F 5/04, B01J 12/00, B01J 19/24
US Classification:
422224, 366336, 366341, 239429, 239430, 239432
Abstract:
A gas mixer is disclosed which includes a vessel () (e. g. , pipe) containing a stream () of a first hydrocarbon-containing gas. The mixer includes a hollow pipe () located internal to the vessel containing a stream of a second gas, e. g. , an oxygen-containing gas stream such as a stream of pure oxygen gas or air enriched with oxygen. The internal pipe further includes a mixer tip () at the peripheral end thereof. The mixer tip includes a body having an internal passage for conducting the second gas out of the pipe and an opening introducing the second gas stream into the first gas stream in a radial plane at an acute angle relative to the longitudinal axis of the pipe. The pipe further includes a deflector () on its external surface in longitudinal alignment with the opening of the mixer tip. The deflector serves to deflect any entrained particles within the first gas stream away from the mixing zone where the two streams mix, minimizing the risk of ignition of the hydrocarbon-containing gas.


John Mayer Photo 4

Hydrocarbon/Oxygen Industrial Gas Mixer With Coarse Water Droplet Environment To Reduce Ignition Potential

US Patent:
8334395, Dec 18, 2012
Filed:
Nov 7, 2008
Appl. No.:
12/678276
Inventors:
Harvey E. Andresen - Luling LA, US
Christopher P. Christenson - Lake Jackson TX, US
Charles W. Lipp - Lake Jackson TX, US
John R. Mayer - The Woodlands TX, US
Thomas J. Kling - Midland MI, US
Victor R. Fey - West Bloomfield MI, US
Laurence G. Britton - Charleston WV, US
Michael J. Rangitsch - Saginaw MI, US
Michael L. Hutchison - Poca WV, US
Assignee:
Dow Technology Investments LLC - Midland MI
International Classification:
C07D 301/08, B01J 19/00
US Classification:
549523, 422224
Abstract:
A hydrocarbon-containing gas is mixed with an oxygen gas in a gas mixer in the presence of coarse water droplet environment, e. g. , a ‘rainy’ or ‘driving rainstorm’ environment in which the water droplets generally have a size greater than 200 microns SMD. The water droplets surround and contact entrained particles in either the oxygen gas stream or the hydrocarbon-containing gas stream. The water acts to suppress, prevent and quench ignition of the hydrocarbon gas in the mixer which would otherwise be caused by energetic collisions between such particles and structures within the gas mixer. In one configuration the gas mixer includes water pipes having coarse water droplet-producing nozzles at the peripheral end thereof concentrically located within oxygen supply pipes. Additionally, nozzles introduce coarse water droplets into a pipe carrying the hydrocarbon gas and forming a mixing chamber for the hydrocarbon and oxygen gases.


John Mayer Photo 5

Wet Scrubbing For Removing Particulate Solids From Oxygen Supply Line

US Patent:
8500894, Aug 6, 2013
Filed:
Nov 12, 2008
Appl. No.:
12/678263
Inventors:
Harvey E. Andresen - Luling LA, US
Christopher P. Christenson - Lake Jackson TX, US
Charles W. Lipp - Lake Jackson TX, US
John R. Mayer - The Woodlands TX, US
Thomas J. Kling - Midland MI, US
Victor R. Fey - West Bloomingfield MI, US
Laurence G. Britton - Charleston WV, US
Michael J. Rangitsch - Saginaw MI, US
Michael L. Hutchison - Poca WV, US
Assignee:
Dow Technology Investments LLC - Midland MI
International Classification:
B01D 47/00, B01D 47/02, B01D 47/14
US Classification:
96290, 96322, 96351, 96355, 96371, 95230, 95187, 95195, 95210
Abstract:
A method of mixing an oxygen gas with a hydrocarbon-containing gas includes the steps of wet scrubbing the oxygen gas in a wet scrubber, supplying oxygen gas from the wet scrubber to a gas mixer and mixing the oxygen gas with the hydrocarbon-containing gas in the gas mixer. Wet scrubbers for use in the method may take various forms, including packed-tower, bubble cap, and sparger-type wet scrubbers. The removal of the particulate matter reduces the risk of ignition of the hydrocarbon-containing gas in the gas mixer. The use of a wet scrubber in the oxygen supply line overcomes many problems currently faced with screen and filters, as per current practice.


John Mayer Photo 6

Low Shear Gas Mixer

US Patent:
8500320, Aug 6, 2013
Filed:
Nov 12, 2008
Appl. No.:
12/678257
Inventors:
Harvey E. Andresen - Luling LA, US
Christopher P. Christenson - Lake Jackson TX, US
Charles W. Lipp - Lake Jackson TX, US
John R. Mayer - The Woodlands TX, US
Thomas J. Kling - Midland MI, US
Victor R. Fey - West Bloomfield MI, US
Laurence G. Britton - Charleston WV, US
Michael J. Rangitsch - Saginaw MI, US
Michael L. Hutchison - Poca WV, US
Matthias Schaefer - Saxony, DE
Assignee:
Dow Technology Investments LLC - Midland MI
International Classification:
B01F 3/02
US Classification:
3661771, 95216, 96356, 239432, 2395903, 366336, 366337, 422224
Abstract:
A gas mixer () for mixing a first gas stream with a second gas stream includes an impact labyrinth () in the first gas stream having structures (), e. g. , corrugated walls, forming a tortuous path through which the first gas stream must pass en route to a mixing point () in the gas mixer. The labyrinth fosters ignition of particles entrained in the first gas stream. Elongate, straight pipes () receive the first gas stream from the impact labyrinth () and carrying the first gas stream to the mixing point () the pipes () are positioned with a vessel () carrying the second gas stream. The pipes () have openings which are substantially aligned with the flow direction of the second gas stream at the mixing point () thereby introducing the first gas stream into the second gas stream in a low shear manner.