Koranne
Manoj M. Koranne, Clarksville, MD US
| Patent application number | Description | Published |
|---|---|---|
| 20120071614 | CATALYST ON SILICA CLAD ALUMINA SUPPORT - The invention concerns catalysts comprising (i) a cladded catalyst support comprising (a) a core which comprises alumina particles and (b) about 1 to about 40 weight percent silica cladding, based on the weight of the cladded catalyst support, on the surface of the core; the catalyst support having a BET surface area of greater than 20 m2/g and a porosity of at least about 0.2 cc/g; and (ii) 0.1 to 10 weight percent, based on the weight of the catalyst, of catalytically active transition metal on the surface of the cladded catalyst support; wherein the catalyst support has a normalized sulfur uptake (NSU) of up to 25 ?g/m2. The invention also concerns the production and use of such catalysts. | 03-22-2012 |
| 20130143736 | Attrition Resistant Supports for Fischer-Tropsch Catalyst and Process for Making Same - The invention relates to a novel method of preparing attrition resistance spinel supports for Fischer Tropsch catalysts. The process comprises: (a) combining aluminum oxide, metal compound capable of forming spinel phase, and soluble compound of a trivalent aluminum; (b) mixing the combination resulting in (a) in a manner sufficient to form a slurry comprising the aforementioned combination; and (c) processing the mixture of (b) under conditions sufficient to form metal aluminate spinel composition. Metal aluminate spinel, for example, is formed in the last step by calcining the mixture from (b) at a temperature in the range of 700 to 1300° C., but the process is also capable, of producing attrition resistant supports (e.g., having a DI of 5 or less) at a relatively lower temperature in the range of 700 to 1050° C. The invention also produces the attrition resistance with lower metal loadings than that reported for prior attrition resistant spinel supports. | 06-06-2013 |
| 20130199966 | FISCHER-TROPSCH CATALYSTS - A method of producing an aluminium oxide supported catalyst for use in a Fischer-Tropsch synthesis reaction, which comprises: spray-drying a slurry of γ-alumina and a source of a spinel forming metal to form a solid precursor material; calcining the precursor material to form a modified support material including a metal aluminate spinel; impregnating the modified alumina support material with a source of cobalt; calcining the impregnated support material, and activating the catalyst. | 08-08-2013 |
| 20140109466 | CATALYTIC PURIFICATION OF FATTY ACID ALKYL ESTERS USED IN FUELS - The process of this invention removes impurities from transesterification products comprising primarily fatty acid alkyl esters (FAAE) that are being processed for final fuel products, such as biodiesel. The inventive process is catalytic, and the resulting ester is suitable for use as biodiesel. Metal oxide and mixed metal oxide catalysts are particularly suitable. The invention is particularly suitable for treating fatty acid alkyl ester compositions comprising impurities such as glycerin, sterol glycosides, and/or triglyceride, diglyceride and/or monoglyceride. The invention is particularly useful in treating FAAE transesterification products made using homogeneous alkali catalysts. The treated ester exhibits improved performance under cold weather conditions, which can be measured by methods such as ASTM 7501 Cold Soak Filtration Test (CSFT). | 04-24-2014 |
Manoj Mukund Koranne, Clarksville, MD US
| Patent application number | Description | Published |
|---|---|---|
| 20100120612 | Sulfur Tolerant Alumina Catalyst Support - The present invention is directed to an improved catalyst support and to the resultant catalyst suitable for treating exhaust products from internal combustion engines, especially diesel engines. The support of the present invention is a structure comprising alumina core particulate having high porosity and surface area, wherein the structure has from about 1 to about 8 weight percent silica in the form of cladding on the surface area of said alumina core. The resultant support has a sulfur tolerance efficiency (η) of at least 1000 μg/m2. | 05-13-2010 |
| 20120190541 | SULFUR RESITANT CLADDED TITANIA-ALUMINA SUPPORTS - The present invention is directed to a method of forming titania clad high surface area alumina suitable as a support for forming noble metal catalysts. The resultant catalysts exhibit resistance to poisoning by sulfurous materials and, therefore, are useful in applications directed to internal combustion engine emission conversion and the like. The present invention provides a commercially feasible and cost effective method of forming a highly desired support for noble metal catalyst application. The process comprises forming a slurry of porous alumina particulate suitable as a catalyst support for the intended application, mixing said slurry with a solution of titanyl sulfate having a pH of about 1, increasing the pH of the mixed slurry/solution at a slow rate of from 0.05 to 0.5 pH unit per minute to a pH of ≦4 by the addition of a basic solution, allowing the resultant slurry to age for a period of from 10 to 120 minutes, separating the treated porous alumina particulates and washing same free of sulfate with a weak base, drying and calcining said particulates to produce titania clad alumina particulate product. The resultant material exhibits a normalized sulfur uptake of less than about 45 μg/m | 07-26-2012 |
Mukund Manoj Koranne, Clarksville, MD US
| Patent application number | Description | Published |
|---|---|---|
| 20100267552 | Sulfur tolerant alumina catalyst support - The present invention is directed to an improved catalyst support and to the resultant catalyst suitable for treating exhaust products from internal combustion engines, especially diesel engines. The support of the present invention is a structure comprising alumina core particulate having high porosity and surface area, wherein the structure has from about 1 to about 40 weight percent silica in the form of cladding on the surface area of said alumina core. The resultant support has a normalized sulfur uptake (NSU) of up to 15 μg/m2. | 10-21-2010 |
Sandeep Koranne US
| Patent application number | Description | Published |
|---|---|---|
| 20110265054 | Design-Rule-Check Waiver - When a designer designates one or more errors identified in layout design data as false errors, waiver geometric elements corresponding to the designated false errors are created and added to the design. The waiver geometric element may be associated with a verification rule that generated its corresponding false error. When the design is subsequently analyzed using those verification rules in another verification rule check process, the waiver geometric elements are examined, and used to mask those errors associated with a waiver geometric element that would otherwise be displayed to the designer. | 10-27-2011 |
Sandeep Koranne, West Linn, OR US
| Patent application number | Description | Published |
|---|---|---|
| 20130198712 | Canonical Signature Generation For Layout Design Data - Contour-related information for geometric elements in layout design data is obtained. Relevant portions of the contour-related information are provided to a canonical hash function, from which a canonical signature for the layout design data is generated. | 08-01-2013 |