Heat exchanger using non-pure water for steam generation

US11149940B2 · kind B2 · utility

Inventors

• Greg Naterer · St. John's, CA
• Zhaolin Wang · Saint Paul, US
• Edward Secnik · Pickering, CA

Key dates

• Filing date: Jul 21, 2017
• Grant date: Oct 19, 2021
• Expiry date: Aug 12, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W10/37
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process and a device are described for producing high purity and high temperature steam from non-pure water which may be used in a variety of industrial processes that involve high temperature heat applications. The process and device may be used with technologies that generate steam using a variety of heat sources, such as, for example industrial furnaces, petrochemical plants, and emissions from incinerators. Of particular interest is the application in a thermochemical hydrogen production cycle such as the Cu—Cl Cycle. Non-pure water is used as the feedstock in the thermochemical hydrogen production cycle, with no need to adopt additional and conventional water pre-treatment and purification processes. The non-pure water may be selected from brackish water, saline water, seawater, used water, effluent treated water, tailings water, and other forms of water that is generally believed to be unusable as a direct feedstock of industrial processes. The direct usage of this water can significantly reduce water supply costs.