The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 08, 2022

Filed:

Jan. 23, 2019
Applicant:

Evac Oy, Espoo, FI;

Inventor:

Jari Jokela, Espoo, FI;

Assignee:

Evac Oy, Espoo, FI;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 31/02 (2006.01); C02F 11/10 (2006.01); C01B 32/05 (2017.01); C10L 9/08 (2006.01);
U.S. Cl.
CPC ...
C02F 11/10 (2013.01); C01B 32/05 (2017.08); C10L 9/086 (2013.01); C10L 2290/10 (2013.01); C10L 2290/24 (2013.01); C10L 2290/46 (2013.01);
Abstract

Methods and systems for treatment of organic waste by means of hydrothermal carbonization include a mixing tank for receiving organic waste. A first batch of mixed wet waste is fed from the mixing tank to a first thermal reactor to undergo thermal hydrolysis. A second batch of mixed wet waste is fed from the mixing tank to a second thermal reactor to undergo thermal hydrolysis. Bio-char sludge is fed in an alternating manner from the first and second thermal reactors to a bio-char cooler. To save energy, hot and pressurized water from the first thermal reactor is subsequently supplied to the second thermal reactor or from the second thermal reactor to the first thermal reactor in an alternating manner for the respective hydrolysis processes.


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