Patents by Inventor Lloyd Edward Cizmar
Lloyd Edward Cizmar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9328974Abstract: Methods, systems, and apparatus for cooling particulates are provided. The apparatus can include one or more coils at least partially disposed within a cylindrical housing. The one or more coils can include a plurality of tubulars connected by return bends disposed at one or more ends thereof. The apparatus can further include a support grid at least partially disposed within the housing and secured to one or more inner surfaces of one or more sidewalls thereof. The support grid can include a plurality of cross members formed of a series of concentric cylinders connected together by a plurality of radially disposed gussets. An outermost concentric cylinder can be disposed proximate the one or more inner surfaces of the one or more sidewalls, and at least one of the one or more coils can be secured to at least one of the cross members, at least one of the gussets, or both.Type: GrantFiled: February 21, 2011Date of Patent: May 3, 2016Assignee: Kellogg Brown & Root LLCInventors: Lloyd Edward Cizmar, William E. Phillips
-
Publication number: 20120211206Abstract: Methods, systems, and apparatus for cooling particulates are provided. The apparatus can include one or more coils at least partially disposed within a cylindrical housing. The one or more coils can include a plurality of tubulars connected by return bends disposed at one or more ends thereof. The apparatus can further include a support grid at least partially disposed within the housing and secured to one or more inner surfaces of one or more sidewalls thereof. The support grid can include a plurality of cross members formed of a series of concentric cylinders connected together by a plurality of radially disposed gussets. An outermost concentric cylinder can be disposed proximate the one or more inner surfaces of the one or more sidewalls, and at least one of the one or more coils can be secured to at least one of the cross members, at least one of the gussets, or both.Type: ApplicationFiled: February 21, 2011Publication date: August 23, 2012Applicant: KELLOGG BROWN & ROOT LLCInventors: Lloyd Edward Cizmar, William E. Phillips
-
Patent number: 8168131Abstract: A syngas reforming reactor has a shell-and-tube configuration wherein the shell-side fluid flow path through the tube bundle has a longitudinal configuration. The reactor can include a shell-side inlet fluid distributor plate below the lower end of the tube bundle.Type: GrantFiled: November 9, 2009Date of Patent: May 1, 2012Assignee: Kellog Brown & Root LLCInventors: Robert Stevens Burlingame, Lloyd Edward Cizmar, Larry Gene Hackemesser, Laura Beth Aguilar
-
Publication number: 20100074812Abstract: A syngas reforming reactor has a shell-and-tube configuration wherein the shell-side fluid flow path through the tube bundle has a longitudinal configuration. The reactor can include a shell-side inlet fluid distributor plate below the lower end of the tube bundle.Type: ApplicationFiled: November 9, 2009Publication date: March 25, 2010Applicant: Kellogg Brown & Root, LLCInventors: Robert Stevens Burlingame, Lloyd Edward Cizmar, Larry Gene Hackemesser, Laura Beth Aguilar
-
Patent number: 7635456Abstract: A syngas reforming reactor has a shell-and-tube configuration wherein the shell-side fluid flow path through the tube bundle has a longitudinal configuration. The reactor can include a shell-side inlet fluid distributor plate below the lower end of the tube bundle, and a flow sleeve in an enlarged-diameter discharge annulus at an upper end adjacent the tube sheet to prevent short-circuiting of the shell-side fluid into the shell-side fluid outlet. The tube bundle can include a plurality of ring baffles and lattice baffles. The longitudinal flow configuration can provide a lower shell-side pressure drop and lower cost compared to a conventional cross-flow reforming exchanger.Type: GrantFiled: August 8, 2006Date of Patent: December 22, 2009Assignee: Kellogg Brown & Root LLCInventors: Robert Stevens Burlingame, Lloyd Edward Cizmar, Larry Gene Hackemesser, Laura Beth Aguilar
-
Publication number: 20080038165Abstract: A syngas reforming reactor has a shell-and-tube configuration wherein the shell-side fluid flow path through the tube bundle has a longitudinal configuration. The reactor can include a shell-side inlet fluid distributor plate below the lower end of the tube bundle, and a flow sleeve in an enlarged-diameter discharge annulus at an upper end adjacent the tube sheet to prevent short-circuiting of the shell-side fluid into the shell-side fluid outlet. The tube bundle can include a plurality of ring baffles and lattice baffles.Type: ApplicationFiled: August 8, 2006Publication date: February 14, 2008Inventors: Robert Stevens Burlingame, Lloyd Edward Cizmar, Larry Gene Hackemesser, Laura Beth Aguilar
-
Patent number: 5690168Abstract: A thermal transition section for introducing a high temperature cracked process gas into a quench exchanger having an inlet end comprising inner and outer concentric pipes connected to a closure ring to define an annulus between the pipes and an interior exchanger surface having an inside diameter. The transition section has a metal outer wall extending from a downstream end connected to the closure ring to an upstream end connected to a metal transition cone. The transition cone is connected at an upstream end to a line for supplying the process gas. The downstream end of the inner sleeve has an outside diameter matching the inside diameter of the interior exchanger surface. A precast, pre-fired single-piece ceramic insert substantially fills the annulus between the outer wall and inner sleeve. By using the ceramic insert, particularly a relatively long insert, thermal stresses are reduced and coke formation in the annulus is inhibited.Type: GrantFiled: November 4, 1996Date of Patent: November 25, 1997Assignee: The M. W. Kellogg CompanyInventors: Lloyd Edward Cizmar, Larry Gene Hackemesser, William E. Phillips
-
Patent number: 5653282Abstract: An impingement distributor for a shell and tube heat exchanger and a method of recovering waste heat from a hot gas which minimizes adverse heat flux at the outermost banks of tubes for enhanced operational reliability. The impingement distributor has a cylindrical distribution plate having evenly arranged rows of longitudinal perforations and a plurality of impact bars longitudinally aligned with the perforations. The hot fluid impinges on the impact bars, and direct impingement on the tubes is avoided.Type: GrantFiled: July 19, 1995Date of Patent: August 5, 1997Assignee: The M. W. Kellogg CompanyInventors: Larry Gene Hackemesser, Lloyd Edward Cizmar, Robert Stevens Burlingame