Arnulf Muan from State College, PA

Compositions Involving V.sub.2 O.sub.3 -Al.sub.2 O.sub.3 -Cao
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US Patent:

50700650, Dec 3, 1991
Filed:

Aug 6, 1990
Appl. No.:

7/563586
Inventors:

Arnulf Muan - Lacey Spring VA
Mitri S. Najjar - Wappingers Falls NY
Assignee:

Texaco Inc. - White Plains NY
International Classification:

B01J 2104
US Classification:

502341
Abstract:

The present invention pertains to novel phases involving V. sub. 2 O. sub. 3, Al. sub. 2 O. sub. 3 and CaO, and the method for their preparation. The solid compositions involving V. sub. 2 O. sub. 3, Al. sub. 2 O. sub. 3, and composition diagram of V. sub. 2 O. sub. 3 -Al. sub. 2 O. sub. 3 -CaO as shown in the drawing herein e. g. , FIG. 1. The composition may be used as a catalyst for oxidation or reduction reactions.

Partial Oxidation Process
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US Patent:

46576983, Apr 14, 1987
Filed:

Dec 2, 1985
Appl. No.:

6/803470
Inventors:

Mitri S. Najjar - Hopewell Junction NY
Michael W. Becker - Long Beach CA
Arnulf Muan - State College PA
Assignee:

Texaco Inc. - White Plains NY
International Classification:

C01B 336
US Classification:

252373
Abstract:

An ash fusion temperature reducing agent comprising a mixture of about 70-97 wt. % of an iron compound and the remainder comprising a silicon compound is mixed with an ash-containing fuel comprising liquid hydrocarbonaceous material and/or petroleum coke. The comminuted mixture is reacted in a free-flow partial oxidation reaction zone with a free-oxygen containing gas in the presence of a temperature moderator to produce a hot raw effluent gas stream comprising H. sub. 2 +CO along with molten ash having a reduced initial deformation temperature. The weight ratio of ash fusion temperature reducing agent to ash in said ash-containing fuel is in the range of about 0. 5 to 10, and the weight ratio of iron oxide to SiO. sub. 2 in said molten ash is about 1. 5, or more.

Compositions Involving Mno--V.sub.2 O.sub.3 --Tio.sub.2
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US Patent:

50616749, Oct 29, 1991
Filed:

Jun 1, 1990
Appl. No.:

7/531607
Inventors:

Arnulf Muan - Lacey Spring VA
Mitri S. Najjar - Wappingers Falls NY
Assignee:

Texaco Inc. - White Plains NY
International Classification:

B01J 2334
US Classification:

502324
Abstract:

The present invention pertains to novel solid solutions involving MnO, V. sub. 2 O. sub. 3 and TiO. sub. 2 and the method for their preparation. The solid compositions involving MnO, V. sub. 2 O. sub. 3 and TiO. sub. 2 fall within the shaded area of a polygon in a ternary composition diagram of MnO, V. sub. 2 O. sub. 3 and TiO. sub. 2 as shown in the drawing herein e. g. , FIG. 1. The composition may be used as an oxidation catalyst or in the manufacture of high temperature refractories.

Compositions Involving Feo--V.sub.2 O.sub.3 --Cao
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US Patent:

51243059, Jun 23, 1992
Filed:

Aug 6, 1990
Appl. No.:

7/563019
Inventors:

Arnulf Muan - Lacey Spring VA
Mitri S. Najjar - Wappingers Falls NY
Assignee:

Texaco, Inc. - White Plains NY
International Classification:

B01J 2322
B01J 2374
B01J 2376
B01J 2378
US Classification:

502338
Abstract:

The present invention pertains to novel phases involving FeO, V. sub. 2 O. sub. 3 and CaO and the method for their preparation. The solid compositions involving FeO--V. sub. 2 O. sub. 3 --CaO fall within the shaded area of a polygon in a ternary composition diagram of FeO, V. sub. 2 O. sub. 3 and CaO as shown in the drawing herein e. g. , FIG. 1. The compositions may be used as a catalyst for oxidation or reduction reactions.

Stable Solid Phases Involving V.sub.2 O.sub.3 - Tio.sub.2 And Mixtures Of Said Phases
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US Patent:

50495372, Sep 17, 1991
Filed:

Dec 26, 1989
Appl. No.:

7/457215
Inventors:

Mitri S. Najjar - Wappingers Falls NY
Arnulf Muan - Lacey Spring VA
Assignee:

Texaco Inc. - White Plains NY
International Classification:

B01J 2106
US Classification:

502350
Abstract:

Novel oxidation-reduction catalysts and the method for their preparation. The materials comprise stable phases involving V. sub. 2 O. sub. 3 and TiO. sub. 2 and mixtures of said phases and have compositions that fall within specific areas in a binary composition diagram of V. sub. 2 O. sub. 3 and TiO. sub. 2. A typical VT material has the formula V. sub. 2 TiO. sub. 5. A typical E material has a formula V. sub. 2 Ti. sub. 2 O. sub. 7 ; and, a typical. eta. material has the formula V. sub. 2 Ti. sub. 3 O. sub. 9.

Vanadium Garnet Materials
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US Patent:

49803204, Dec 25, 1990
Filed:

Oct 18, 1989
Appl. No.:

7/423177
Inventors:

Mitri S. Najjar - Wappingers Falls NY
Arnulf Muan - Lacey Spring VA
Assignee:

Texaco Inc. - White Plains NY
International Classification:

C30B 2930
US Classification:

501 86
Abstract:

Vanadium garnet material and a method for their preparation. The vanadium garnet material has a trivalent vanadium cation and a composition that falls within a specific polygon shaped area in a ternary composition diagram of V. sub. 2 O. sub. 3, CaO and SiO. sub. 2. The polygon shaped area represents compositions of liquids with which said vanadium garnet is in equilibrium on the liquidus surface and from which the vanadium garnet phase is crystallized. A typical vanadium garnet material has the formula Ca. sub. 3 V. sub. 2 Si. sub. 3 O. sub. 12. The vanadium garnet materials may be used in laser applications.

Compositions Involving Feo-V.sub.2 O.sub.3 -Tio.sub.2
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US Patent:

50414097, Aug 20, 1991
Filed:

Apr 12, 1990
Appl. No.:

7/507804
Inventors:

Arnulf Muan - Lacey Spring VA
Mitri S. Najjar - Wappingers Falls NY
Assignee:

Texaco Inc. - White Plains NY
International Classification:

B01J 2322
B01J 2374
US Classification:

502338
Abstract:

The present invention pertains to novel solid solutions involving FeO, V. sub. 2 O. sub. 3 and TiO. sub. 2 and the method for their preparation. The solid compositions involving FeO, V. sub. 2 O. sub. 3 and TiO. sub. 2 fall within the shaded area of a polygon in a ternary composition diagram of FeO, V. sub. 2 O. sub. 3 and TiO. sub. 2 as shown in the drawing herein e. g. , FIG. 1. The composition may be used as an oxidation catalyst or in the manufacture of high temperature refractories.

Partial Oxidation Process
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US Patent:

47055391, Nov 10, 1987
Filed:

Dec 2, 1985
Appl. No.:

6/803688
Inventors:

Mitri S. Najjar - Hopewell Junction NY
Michael W. Becker - Long Beach CA
Arnulf Muan - State College PA
Assignee:

Texaco Inc. - White Plains NY
International Classification:

C10J 346
US Classification:

48197R
Abstract:

An ash fusion temperature reducing agent principally comprising at least 50. 0 wt. % of a manganese compound, such as MnO, and the remainder of the agent comprising a silicon compound, such as SiO. sub. 2 is mixed with an ash-containing fuel comprising a pumpable liquid hydrocarbonaceous material and/or petroleum coke to produce Mixture A. In one embodiment, the ash fusion temperature reducing agent comprises a comminuted pyrolusite ore in which the following elements are present in weight percent basis ore: manganese in the range of about 50-75, calcium in the range of about 0-1. 0, silicon in the range of about 0-3. 0, magnesium in the range of about 0-1. 0, and aluminum in the range of about 0-1. Mixture A is reacted with a free-oxygen containing gas in a free-flow refractory lined reaction zone of a partial oxidation gas generator. A hot raw effluent gas stream comprising H. sub.

Arnulf Muan