Mark R Buetzow

US Patent:

6626122, Sep 30, 2003

Filed:

Oct 18, 2001

Appl. No.:

09/982701

Inventors:

Kirk T. OReilly - El Sobrante CA
Michael E. Moir - San Rafael CA
Dennis J. ORear - Petaluma CA
Mark R. Buetzow - Novato CA
Brian V. Dorsch - Concord CA

Assignee:

Chevron U.S.A. Inc - San Ramon CA

International Classification:

B63B 2508

US Classification:

114 74R, 114125, 210764

Abstract:

The present invention relates to the use of deactivatable biocides in ballast water aboard a vessel. The present invention relates to methods of limiting the transfer of one or more life forms via ballast water comprising mixing an effective amount of the deactivatable biocide with the ballast water and irreversibly deactivating the deactivatable biocides before or upon discharge of the ballast water.

US Patent:

7479216, Jan 20, 2009

Filed:

Sep 28, 2004

Appl. No.:

10/950662

Inventors:

Gunther H. Dieckmann - Walnut Creek CA, US
Mark R. Buetzow - Novato CA, US
Dennis J. O'Rear - Petaluma CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

F17D 1/16

US Classification:

208 18, 208 19, 208370, 208 21, 585 9, 137 13

Abstract:

The present invention relates to transportable product for the transportation of paraffinic wax and methods of transporting using this transportable product. The transportable product comprises 90 to 20 weight % of a liquid comprising >50 weight % alcohol and having a true vapor pressure of ≦14. 7 psia when measured at 20 C. , and 10 to 80 weight % of wax particles, wherein the wax particles comprise ≧75 weight % of wax particles larger than 0. 1 mm. The transportable product and methods of transporting according to the present invention are able to accommodate a relatively high weight % of paraffinic wax particles in the transportable product while avoiding interparticle adhesion and clumping by ensuring that the wax particles are not too small and the amount of small wax particles is not excessive.

US Patent:

7488411, Feb 10, 2009

Filed:

Sep 28, 2004

Appl. No.:

10/950654

Inventors:

Gunther H. Dieckmann - Walnut Creek CA, US
Mark R. Buetzow - Novato CA, US
Dennis J. O'Rear - Petaluma CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

C10G 73/40
C10G 37/36

US Classification:

208 21, 208 20, 585 9

Abstract:

The present invention relates to transportable product for the transportation of paraffinic wax and methods of transporting using this transportable product. The transportable product comprises 90 to 20 weight % of a liquid comprising ≧50 weight % water and having a pH of >5 and a true vapor pressure of ≦14. 7 psia when measured at 20 C. , and 10 to 80 weight % of wax particles, wherein the wax particles comprise ≧75 weight % of wax particles larger than 0. 1 mm. The transportable product and methods of transporting according to the present invention are able to accommodate a relatively high weight % of paraffinic wax particles in the transportable product while avoiding interparticle adhesion and clumping by ensuring that the wax particles are not too small and the amount of small wax particles is not excessive.

US Patent:

7951759, May 31, 2011

Filed:

Dec 29, 2008

Appl. No.:

12/345198

Inventors:

Gunther H. Dieckmann - Walnut Creek CA, US
Mark R. Buetzow - Novato CA, US
Dennis J. O'Rear - Petaluma CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

C10M 159/06

US Classification:

508450, 508451, 508583, 208 20, 208 21, 208 24

Abstract:

The present invention relates to transportable product for the transportation of paraffinic wax and methods of transporting using this transportable product. The transportable product comprises 90 to 20 weight % of a liquid comprising >50 weight % alcohol and having a true vapor pressure of ≦14. 7 psia when measured at 20 C. , and 10 to 80 weight % of wax particles, wherein the wax particles comprise ≧75 weight % of wax particles larger than 0. 1 mm. The transportable product and methods of transporting according to the present invention are able to accommodate a relatively high weight % of paraffinic wax particles in the transportable product while avoiding interparticle adhesion and clumping by ensuring that the wax particles are not too small and the amount of small wax particles is not excessive.

US Patent:

20060065573, Mar 30, 2006

Filed:

Sep 28, 2004

Appl. No.:

10/950653

Inventors:

Gunther Dieckmann - Walnut Creek CA, US
Mark Buetzow - Novato CA, US
Dennis O'Rear - Petaluma CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

C10G 73/40
F17D 1/08

US Classification:

208021000, 208020000, 208014000, 208370000, 137013000, 518728000

Abstract:

The present invention relates to transportable product for the transportation of paraffinic wax and methods of transporting using this transportable product. The transportable product comprises 90 to 20 weight % of a hydrocarbonaceous liquid, wherein the hydrocarbonaceous liquid comprises ≧75 weight % of a liquid selected from the group consisting of naphtha, heavy oil, distillate, lubricant base oil, and mixtures thereof, and 10 to 80 weight % of wax particles, wherein the wax particles comprise ≧90 weight % of wax particles larger than 2.4 mm. The transportable product and methods of transporting according to the present invention are able to accommodate a relatively high weight % of paraffinic wax particles in the transportable product while avoiding interparticle adhesion and clumping by ensuring that the wax particles are not too small and the amount of small wax particles is not excessive.

US Patent:

6518321, Feb 11, 2003

Filed:

Nov 8, 2000

Appl. No.:

09/708068

Inventors:

Dennis J. ORear - Petaluma CA
Mark R. Buetzow - Novato CA

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

C07C 2700

US Classification:

518700, 518702, 585899, 208133

Abstract:

A transportable Fischer-Tropsch syncrude product and a method for manufacturing and (transporting and/or receiving) the product is disclosed. The product has a true vapor pressure of less than about 15 psia, preferably less than 11 psia, when measured at its transportation temperature, and includes at least 60% by weight, preferably at least 75% by weight, of linear hydrocarbons. The method involves converting a light hydrocarbon feedstock into syngas, converting the syngas to products via Fischer-Tropsch synthesis, and isolating a plurality of transportable products from the Fischer-Tropsch synthesis. The products have true vapor pressures of less than about 15 psia, preferably less than about 11 psia, when measured at their transportation temperature. At least one of the transportable products has a pour point in excess of 20Â C. At least two of the products are transported separately in liquid form.