Christopher Ryan Oliver

US Patent:

8404005, Mar 26, 2013

Filed:

Sep 10, 2009

Appl. No.:

12/556857

Inventors:

Brian H. Dennis - Arlington TX, US
Richard E. Billo - Colleyville TX, US
Christopher R. Oliver - Commerce Township MI, US
John W. Priest - Dallas TX, US
Elinor Kolesar - Ft. Worth TX, US

Assignee:

Board of Regents, The University of Texas System - Austin TX

International Classification:

C10L 1/18
C11C 3/04

US Classification:

44308, 44307, 554169, 554167, 554170

Abstract:

In a method and system to produce biodiesel using an improved catalytic transesterification process, a first reactant and a second reactant are dispersed to form a laminar slug flow pattern within a microchannel of a microreactor, the first reactant and the second reactant being immiscible. The first reactant and the second reactant are mixed, thereby triggering a reaction between them to produce the biodiesel and glycerol, the mixing being convection-enhanced by shear stress induced circulation occurring within each slug of the reactants. The reaction takes place under a pressure that is less than 5 psi and under a temperature that is less than 70 degrees Celsius. Separation of the glycerol from the biodiesel occurs simultaneously with the mixing. Several microreactors are coupled in parallel to improve throughput of the biodiesel.

US Patent:

6122281, Sep 19, 2000

Filed:

Feb 14, 1997

Appl. No.:

8/800363

Inventors:

Mark J. Donovan - Derry NH
Stephen D. Augusta - Nashua NH
Christopher J. Oliver - Rochester NH

Assignee:

Cabletron Systems, Inc. - Rochester NH

International Classification:

H04L 1256
H04I 316
H04J 324

US Classification:

370401

Abstract:

A packet of data is received from a LAN and transmitted over a WAN, by retaining the native LAN frame format of the packet during transmission across the WAN. Thus, LAN data may be transmitted over a SONET point-to-point link within a WAN network without the interim steps of creating ATM cells or other WAN transport packaging protocols. Instead, the LAN data may be transmitted directly over the SONET link as raw data, and reconstructed directly at the receiving end of the SONET link. A first buffer stores data from the LAN so that a corresponding packet size may be determined, and a second buffer stores data from the WAN to account for any speed difference between the LAN circuitry and WAN circuitry.