Honeywell International Inc.

Gary Zyhowski

Rajiv R Singh

David Nalewajek

Ryan J Hulse

David Paul Wilson

Michael Van Der Puy

Rajat S Basu

Haridasan K Nair

Raymond Hilton Thomas

Kane David Cook

Samuel F Yana Motta

Mark W Spatz

Roy P Robinson

George J Samuels

Gregory J Shafer

Ronald Peter Vogl

John L Welch

Aspects of the present invention are directed to working fluids and their use in processes wherein the working fluids comprise compounds having the structure of formula (I): wherein R, R, R, and Rare each independently selected from the group consisting of: H, F, Cl, Br, and C-Calkyl, at least Caryl, at least Ccycloalkyl, and C-Calkylaryl optionally substituted with at least one F, Cl, or Br, wherein formula (I) contains at least one F and at least one Cl or Br, provided that if any R is Br, then the compound does not have hydrogen. The working fluids are useful in Rankine cycle systems for efficiently converting waste heat generated from industrial processes, such as electric power generation from fuel cells, into mechanical energy or further to electric power. The working fluids of the invention are also useful in equipment employing other thermal energy conversion processes and cycles.

Chloro- and bromo-fluoro olefin compounds useful as organic rankine cycle working fluids

The invention provides solvent and cleaning compositions comprising an ionic surfactant, which preferably has a fluorinated portion thereof, and a solvent selected from hydrofluoro- and/or hydrochlorofluoro-olefins. Additionally, the invention provides drying, dry cleaning, and soil repellency compositions containing a hydrofluoro- or hydrochlorofluoro-olefin and said surfactant. Additionally, the invention provides drying compositions containing a hydrofluoro-olefin or hydrochlorofluoro-olefin and an alcohol such as methanol, ethanol or isopropanol.

Cleaning compositions and methods comprising a hydrofluoro-olefin or hydrochlorofluoro-olefin solvent

Provided is a composition comprising (a) at least one halogenated compound selected from the group consisting of C-Chydrofluoroolefin, CFI, and combinations thereof, and (b) an effective stabilizing amount of a sesquiterpene selected from the group consisting of farnesol, farnesene, and mixtures thereof.

Sesquiterpene stabilized compositions

A process for recovering waste heat which comprises: (a) passing a liquid phase working fluid through a heat exchanger in communication with a process which produces the waste heat; (b) removing a vapor phase working fluid from the heat exchanger; (c) passing the vapor phase working fluid to an expander, wherein the waste heat is converted into mechanical energy; and (d) passing the vapor phase working fluid from the expander to a condenser, wherein the vapor phase working fluid is condensed to the liquid phase working fluid. The preferred working fluid is an organic Rankine cycle system working fluid comprising compounds having the following general structure: where x, y, z, and m are each selected from the group consisting of: fluorine, hydrogen, R, and R, wherein R and Rare each an alkyl, aryl, or alkylaryl of 1 to 6 carbon atoms, and wherein Ris partially or fully fluorinated.

Working fluids for thermal energy conversion of waste heat from fuel cells using Rankine cycle systems

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Lancaster, NY, United States of America

Gary Zyhowski