Dow Global Technolgoies LLC

Stevens Institute of Technology

Fredrick W Vance

Chan Han

Sten A Wallin

William I Harris

David J Moll

George P Korfiatis

Harlan Robert Goltz

Christos Christodoulatos

Xiaoguang Meng

Geofrey Paul Onifer

Daniel B Rice

Robert E Reim

Mazakhir Dadachov

Madan Mohan Bhasin

Peter E Groenendijk

Mark K Brayden

Michael C Martin

Gregory L Simon

Seyed R Seyedmonir

Marc A Mangnus

Michael C Smith

Foppe Dupius

Charles W Hedley

Lianzhou Chen

Pingfan Wu

Edward E Cole

Frederik R Van Buren

The invention provides a method for removing mercury from a liquid or gas hydrocarbon stream, mixtures thereof, including mixtures of liquid streams with a solid carbonaceous substance, by contacting the hydrocarbon stream with a composition comprising silver and a support material, wherein the composition as measured by ammonia chemisorption has a surface acidity in the range of 0.1-10.0 &#x3bc;mole of irreversible NH/g of the composition.

Method for removal of mercury from hydrocarbon feedstocks

A method for removing dissolved contaminants from solution using a surface-activated crystalline titanium oxide product having a high adsorptive capacity and a high rate of adsorption with respect to dissolved contaminants, in particular, arsenate and arsenite. Preferably, the titanium oxide product includes crystalline anatase having primary crystallite diameters in the range of 1-30 nm. The surface-activated titanium oxide is combined with other filter media to further improve the removal of dissolved contaminants.

Methods of preparing a surface-activated titanium oxide product and of using same in water treatment processes

A ceramic honeycomb wall-flow filter is prepared by plugging channels in a clay containing ceramic honeycomb by a method that has the following steps. First, a mixture of a dispersing liquid and ceramic powder is formed. Second, the mixture is inserted into at least one channel of a clay containing green ceramic honeycomb to form a plugged green ceramic honeycomb wherein the dispersing liquid essentially fails to swell the clay. Alternatively, the mixture is inserted into a calcined ceramic honeycomb to form a plugged calcined ceramic honeycomb. Finally, the plugged green or calcined ceramic honeycomb is heated to a temperature sufficient to sinter the plugged green ceramic honeycomb to form a porous sintered plugged ceramic honeycomb. The method is particularly useful for simultaneously making the plugs and discriminating layers in the channels. In particular the method is useful to make wall-flow filters having plugs on at least one end with same composition as the discriminating layer or plugs on each end having different compositions.

Method of making wall-flow monolith filter

A ceramic honeycomb wall-flow filter is prepared by plugging channels in a ceramic honeycomb by a method comprising the following. First, a mixture comprised of a dispersing liquid and ceramic powder is formed. Next, the mixture is inserted on one end of the channel in an unplugged ceramic honeycomb such that the mixture flows to the other end where the mixture collects and forms a plugged ceramic honeycomb. Then, the plugged ceramic honeycomb is heated to a temperature sufficient to sinter the plugged ceramic honeycomb to form a porous sintered plugged ceramic honeycomb.

Growing community of inventors

Freeland, MI, United States of America

Fredrick W Vance