Patent · US Active

Method and apparatus for pasteurization, hydrolysis and carbonization

US11759833B2 · kind B2 · utility

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2Claims

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Inventors

Sudhir N. Murthy · Herndon, US
Matthew Higgins · Geneva, US
Haydee De Clippeleir · Hamme, BE
Bernhard Wett · Innsbruck, AT

Key dates

Filing date	Feb 1, 2021
Grant date	Sep 19, 2023
Priority date	—
Expiry date	Sep 21, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W10/37
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

This invention proposes the use of Thermal Hydrolysis (or Thermal Carbonization) at different temperatures and pressures in alternate waste streams to achieve an optimal mix of high digestion rates and pasteurization rates while still achieving large viscosity reduction. In the disclosed embodiments means of combining Thermal Hydrolysis (or Thermal Carbonization) and Pasteurization including but not limited to placing the waste streams in parallel, placing them in series, utilizing heat input in parallel and heat exchangers in series are explored to optimize hydrolysis rates, minimize the use of high pressure tanks, optimize energy used, and manage viscosity characteristics of the solids.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.