Jian Zhao

US Patent:

7354465, Apr 8, 2008

Filed:

Jun 20, 2005

Appl. No.:

11/156919

Inventors:

Jian Lian Zhao - Belmont MA, US
William F. Northrop - Ann Arbor MI, US

Assignee:

Nuvera Fuel Cells, Inc. - Cambridge MA

International Classification:

C10L 3/00
B01J 8/02

US Classification:

48197R, 481279, 48119, 422199, 422211, 422222, 165133, 165151, 165182

Abstract:

Devices for cooling and humidifying a reformate stream from a reforming reactor as well as related methods, modules and systems includes a heat exchanger and a sprayer. The heat exchanger has an inlet, an outlet, and a conduit between the inlet and the outlet. The heat exchanger is adapted to allow a flow of a first fluid (e. g. water) inside the conduit and to establish a heat exchange relationship between the first fluid and a second fluid (e. g. reformate from a reforming reactor) flowing outside the conduit. The sprayer is coupled to the outlet of the heat exchanger for spraying the first fluid exiting the heat exchanger into the second fluid.

US Patent:

7575614, Aug 18, 2009

Filed:

May 17, 2005

Appl. No.:

11/132157

Inventors:

Jian Lian Zhao - Belmont MA, US
William F. Northrop - Ann Arbor MI, US
Timothy Bosco - Dallas TX, US
Vincent Rizzo - Norfolk MA, US
Changsik Kim - Lexington MA, US

Assignee:

Nuvera Fuel Cells, Inc. - Billerica MA

International Classification:

C01B 3/00
C01B 3/02
C01B 3/32
C01B 3/36
C01B 3/38
C10J 1/00
C10J 1/02

US Classification:

481987, 48197 R, 481981, 481986, 48199 R, 48199 FM

Abstract:

A startup burner for rapidly heating a catalyst in a reformer, as well as related methods and modules, is disclosed.

US Patent:

7937588, May 3, 2011

Filed:

Jan 6, 2005

Appl. No.:

10/585396

Inventors:

Justin Picard - Cologre, DE
Jian Zhao - North Attleboro MA, US

Assignee:

Thomson Licensing - Boulogne-Billancourt

International Classification:

H04L 9/00

US Classification:

713176, 726 26, 726 32

Abstract:

Improved techniques for making copy detection patterns and using them to detect copying relationships between digital representations. The techniques include techniques for including a message in a copy detection pattern without altering the copy detection patterns entropy and reading the message, techniques for using a copy detection pattern on an analog form to determine whether the analog form is an original analog form without reference to a digital representation of the original of the analog form's copy detection pattern, techniques for increasing the sensitivity of copy detection using copy detection patterns by modifying one of two copy detection patterns that are being compared to take into account alterations resulting from the copying process, techniques for distributing a copy detection pattern across a document, and techniques for using the entropy of a copy detection pattern to locate the copy detection pattern. Also disclosed are applications of copy detection patterns with copying that involves transformations between the digital and analog forms and with digital-to-digital copying.

US Patent:

20030118489, Jun 26, 2003

Filed:

Dec 20, 2002

Appl. No.:

10/324906

Inventors:

Mark Hagan - Cambridge MA, US
William Northrop - Cambridge MA, US
Jian Zhao - Boston MA, US

International Classification:

C01B003/32

US Classification:

422/191000, 048/198600, 048/1970FM, 048/127900, 048/119000, 048/113000, 048/06200R, 422/193000, 422/200000, 422/204000, 422/211000

Abstract:

A housing containing two or more individual operating components called modules is disclosed. The modules themselves are independently contained in one or more vessels with attendant connectivity structures such as pipes, tubes, wires and the like. Each such vessel or device is configured to conduct at least one unit reaction or operation necessary or desired for generating or purifying a hydrogen enriched product gas formed from a hydrocarbon feed stock. Any vessel or zone in which such a unit operation is conducted, and is separately housed with respect at least one other vessel or zone for conducting a unit operation, is considered a module. Unit reactions or operations include: chemical reaction; combusting fuel for heat (burner); partial oxidation of the hydrocarbon feed stock; desulfurization of, or adsorbing impurities in, the hydrocarbon feed stock or product stream (“reformate”); steam reforming or autothermal reforming of the hydrocarbon feed stock or pre-processed (“reformate”) product stream; water-gas shifting of a pre-processed (reformate) stream; selective or preferential oxidation of pre-processed (reformate) stream; heat exchange for preheating fuel, air, or water; reactant mixing; steam generation; water separation from steam, preheating of reactants such as air, hydrocarbon fuel, and water, and the like.

US Patent:

20040253498, Dec 16, 2004

Filed:

Apr 15, 2004

Appl. No.:

10/825078

Inventors:

William Northrop - Somerville MA, US
Jian Zhao - Boston MA, US

Assignee:

Nuvera Fuel Cells, Inc. - Cambridge MA

International Classification:

H01M008/10
H01M008/00
H01M008/18

US Classification:

429/032000, 429/019000, 429/013000

Abstract:

A modular fuel reformer comprising a fuel reformer assembly having a cavity; a removable carrier comprising at least one fuel reformer module, the carrier connecting to the fuel reformer assembly to enclose the at least one module within the cavity; and a connector engageable to secure the carrier and the fuel reformer assembly in fluid-tight relationship and easily disengageable to permit removal of the carrier from the fuel reformer assembly. Any suitable connector can be employed to removably secure the carrier to the fuel reformer assembly, such as a flange with bolt holes, clamps, latches, retaining springs, a threaded connection, nuts and studs, pins, bayonet-type engagements, retaining rings, a chuck or collet, a crimped disposable connector, or any combinations of these. The at least one fuel reformer module preferably comprises a catalyst module containing a catalyst, such as a fuel reforming catalyst, a water gas shift catalyst, a catalyst for removing carbon monoxide or other contaminants, or a catalytic burner catalyst. Serviceability of a fuel reformer is improved by designing the reformer so that catalysts can readily be removed from the reformer for replacement or repair.

US Patent:

20050245620, Nov 3, 2005

Filed:

Nov 13, 2003

Appl. No.:

10/534685

Inventors:

Yanlong Shi - Littleton MA, US
Jian Zhao - Boston MA, US

International Classification:

C07C027/06

US Classification:

518716000

Abstract:

Startup of autothermal reformers for hydrogen production in simplified by providing a first, ATR catalyst bed () containing a low-temperature-lightoff catalyst and a second catalyst in a second bed (), or in a second part of the first bed (), which is a better steam reforming catalyst. The combination is an effective solution for the startup needs of small or mobile steam reformers.

US Patent:

20060204412, Sep 14, 2006

Filed:

Dec 22, 2005

Appl. No.:

11/318250

Inventors:

Vincent Rizzo - Norfolk MA, US
Druva Dattatraya - Medford MA, US
Brian Bowers - Cambridge MA, US
Michael Ruffo - Medford CA, US
Jian Zhao - Belmont MA, US

International Classification:

B01J 19/00
C01B 3/26
G05B 1/00

US Classification:

422198000, 423652000, 422105000

Abstract:

This invention relates to methods of water and steam management during fuel reforming, as well as related fuel reformers.

US Patent:

20090136083, May 28, 2009

Filed:

Sep 9, 2005

Appl. No.:

11/990812

Inventors:

Justin Picard - Cologne, DE
Jian Zhao - North Attleboro MA, US

International Classification:

G06K 9/00

US Classification:

382100

Abstract:

A method and system for watermarking video images by selecting sets of coefficients and enforcing relationships between property values of selected sets of coefficients with a volume of video are described.