Chi Wei Wang

US Patent:

6458478, Oct 1, 2002

Filed:

Sep 8, 2000

Appl. No.:

09/657387

Inventors:

Chi S. Wang - Woodridge IL 60517
J. Daniel Lyons - Wheaton IL

Assignee:

Chi S. Wang - Woodridge IL

International Classification:

H01M 804

US Classification:

429 17, 429 13, 429 22

Abstract:

An integrated process and system for producing electricity for stationary purposes or for electric-powered vehicle using any of multiple hydrocarbon input fuels, a fuel cell, and a thermoelectric reformer that allows quick response to transient loads. Optional high-temperature and low-temperature water-gas shift reactors are used to convert carbon monoxide to carbon dioxide in the reformate stream; a hydrogen separator is used to remove carbon dioxide, carbon monoxide, and trace hydrocarbons; and a condenser is used to remove moisture from the reformate stream. Hydrogen gas not consumed in the fuel cell is stored or recycled for subsequent input to the fuel cell. H O produced in the fuel cell is recycled for use in the reformer and water-gas shift reactors and is heated with waste heat from the fuel cell and carbon dioxide, carbon monoxide, and hydrocarbons from the hydrogen separator. A mixer is used to vaporize the input fuel prior to entering the thermoelectric reformer. Some of the electricity produced in the fuel cell is used for powering the thermoelectric reformer and is also stored for subsequent startup and peak load purposes.

US Patent:

7070634, Jul 4, 2006

Filed:

Nov 3, 2003

Appl. No.:

10/699857

Inventors:

Chi S. Wang - Woodridge IL, US

International Classification:

B01J 7/00

US Classification:

48 61, 48 65, 48 89, 48 62 R, 48197 R, 481279, 481986, 42218604, 422168, 422186, 422173, 422174, 422175, 422198, 422199, 422187, 422224, 422240, 422241

Abstract:

A plasma reformer for the chemical reforming of gaseous mixtures of water and hydrocarbon fuels for producing hydrogen. The reformer contains a reaction chamber with outer lateral walls containing emitter electrodes and inner lateral walls containing collector electrodes. The emitter electrodes and collector electrodes form an electric circuit. There are a multiplicity of thin needle-like extrusions on the emitter electrode from which a profusion of high energy electrons are emitted. These high-energy electrons dissociate the hydrocarbon fuel through absorption and ionization emitting low energy electrons in the process. These low energy electrons cause dissociation of water. Thus, dissociation of hydrocarbon fuel acts to initiate dissociation of water. The molar ratio of water to hydrocarbon fuel in the input mixture for reactions, and therefor the production of hydrogen from water, increases with carbon number of the hydrocarbon fuel.

US Patent:

7442364, Oct 28, 2008

Filed:

Nov 16, 2005

Appl. No.:

11/280384

Inventors:

Chi S. Wang - Woodridge IL, US

International Classification:

C01B 3/24

US Classification:

423650, 423652

Abstract:

A process for producing hydrogen for direct use as a fuel or for input to a fuel cell from dissociating HO in a plasma reformer with hydrocarbon fuel acting as an initiator. The molar ratio of water to hydrocarbon fuel in the input mixture for reactions, and therefore the production of hydrogen from water, increases with the carbon number of the hydrocarbon fuel. Steps in the process include: mixing and vaporizing an HO and hydrocarbon fuel mixture in an atomization/evaporation chamber, further heating the mixture in a rotating-flow buffer chamber, dissociating HO and hydrocarbon fuel in a plasma reformer, converting carbon monoxide and HO to hydrogen and carbon dioxide in a water shift reactor and optionally conditioning the reformate stream by removing carbon dioxide and by purifying hydrogen.

US Patent:

8128883, Mar 6, 2012

Filed:

Jan 20, 2009

Appl. No.:

12/321275

Inventors:

Chi S. Wang - Woodridge IL, US

International Classification:

B01J 19/08
B01J 19/12
B01J 8/00
B01J 10/00
B01J 7/00

US Classification:

422186, 42218604, 4221863, 422600, 422625, 48 61

Abstract:

A thermoelectric reformer unit-for dissociating fossil-based hydrocarbons, renewable hydrocarbons or hydrogen-containing inorganic compounds to produce hydrogen in a reactor using thermoelectric technology with thermoelectric materials to achieve very high conversion efficiencies. Thermoelectric reforming occurs in a reactor core containing a number of energy sources. These energy sources generate extremely high temperature heat that reacts with the fuels in its local surrounding areas. Since the heat is locally generated, it will not penetrate far within the reactor core that is surrounded by walls that act as a casing for the reformer. Synthetic gas produced in the reformer can be fed into internal combustion engines certain, types of fuel cells, or other energy conversion equipment without or with only limited levels of purification. Ancillary components are needed to produce high-purity hydrogen fuel for other types of fuel cells.

US Patent:

20110295626, Dec 1, 2011

Filed:

May 28, 2010

Appl. No.:

12/790075

Inventors:

Wei Chen - Beijing, CN
Yajun Wang - Beijing, CN
Siyu Yang - Princeton NJ, US
Chi Wang - Champaign IL, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06N 5/02
G06Q 99/00
G06Q 10/00

US Classification:

705 711, 706 54, 706 52

Abstract:

Social networks have become platforms to disseminate and market information and ideas. A social network, users, and interactions of users may be modeled by graphs, which may be analyzed to determine influential users. In one example, nodes within a graph may be concurrently grouped into node groupings. Influence values corresponding to node counts within node groupings may be assigned to nodes within node groupings. Influential nodes may be determined based upon the assigned influence values. In another example, degrees of nodes (e.g., an edge count of a node) may be used to determine influential nodes within the graph. Upon selecting a node, degrees of neighboring nodes of the selecting node may be discounted because the node was selected. In another example, trees corresponding to a current node and (e.g., maximum) influential paths from other nodes to the current node may be constructed and evaluated to determine a group of nodes.

US Patent:

60811757, Jun 27, 2000

Filed:

Sep 11, 1998

Appl. No.:

9/151365

Inventors:

Frank T. Duong - Edison NJ
Bill Engst - Sayreville NJ
Gregory J. Lamont - Jackson NJ
Chi Wang - Middletown NJ

Assignee:

Radio Frequency Systems Inc. - Marlboro NJ

International Classification:

H01P 1208

US Classification:

333212

Abstract:

A coupling structure for coupling two resonant cavities, which may be dissimilar, based on providing a metallic surface, called here a guide surface, at an angle intermediate between the orientation of the magnetic field in the two cavities. The guide surface may be one surface of a non-rectangular window cut in a wall separating the two cavities or may be the surface of a coupling screw piercing, at the intermediate angle, a rectangular window in a wall between the two cavities. In the non-rectangular window embodiment, an adjusting tuning screw is provided that screws into a notch in the guide surface. In the angled coupling screw embodiment, coupling is adjusted by providing that more or less of the angled coupling screw extends into the rectangular window. The coupling structure couples any two cavities having mutually orthogonal magnetic fields by providing the guide surface at an orientation so the magnetic field in each cavity has a non-zero projection onto the guide surface.

US Patent:

57075930, Jan 13, 1998

Filed:

Dec 31, 1996

Appl. No.:

8/774570

Inventors:

Chi S. Wang - Woodridge IL

International Classification:

B01D 5000
B01D 5334
F01N 310

US Classification:

422171

Abstract:

A reactor that can be attached to the exhaust manifold of an internal combustion engine to oxidize and burn carbon soot particles, carbon monoxide, and unburned hydrocarbons, and to dissociate nitrogen and sulfur oxides. The reactor has a reaction zone that contains porous heat-retaining foam cells and that is bounded by a porous heat-retaining zone, which in turn is surrounded by ceramic insulation materials to minimize energy losses. Engine exhaust at elevated temperatures and containing some oxygen (air) enters the reaction chamber. By means of impinging heat transfer, thermal radiation enhancement, energy trapping and combustion of engine emissions, temperatures sufficient to oxidize carbon soot particles, carbon monoxide, and unburned hydrocarbons are attained. Steam or atomized water droplets are introduced to improve the efficiency of the reactor through gasification, regasification, water shift reactions, methanation, and hydrocracking reactions. Harmless product of the oxidation reactions, H. sub.

US Patent:

58634916, Jan 26, 1999

Filed:

Jan 31, 1997

Appl. No.:

8/790725

Inventors:

Chi S. Wang - Woodridge IL

International Classification:

C22B 300

US Classification:

266101

Abstract:

A photocatalytic reactor to recover precious metals, useful metals, and toxic metals from industrial waste streams using visible or ultraviolet light and semiconductor material as the photocatalyst. Seeds of metal in the same metal group as the metals being recovered are implanted in the reactor to create nucleation sites for the deposition, agglomeration, and growth of the metals being recovered. The reactor may have internally reflective surfaces to effectively multiply the light sources. The input waste stream may be mixed with reaction acceptor materials that reduce electron-hole recombination and that increase reaction rates.