Method and slurry treatment plant for reducing methane emission from slurry

Jesper Ahrenfeldt (Inventor), Ulrik Birk Henriksen (Inventor), Rasmus Østergaard Gadsbøll (Inventor), Tobias Pape Thomsen (Inventor)

Research output: Patent

24 Downloads (Pure)

Abstract

Disclosed is a method for reducing methane emission from slurry produced in a livestock farm. The method comprising the steps of guiding unheated slurry from the livestock farm to a slurry heat exchanger, raising the temperature of the unheated slurry in the slurry heat exchanger to at least 65⁰ Celsius, guiding the at least 65⁰ Celsius hot slurry to an intermediate slurry tank, raising the temperature of the heated slurry to at least 75⁰ Celsius in the intermediate slurry tank, guiding the at least 75⁰ Celsius hot slurry through the slurry heat exchanger to exchange heat with the unheated slurry to raise the temperature of the unheated slurry to the at least 65⁰ Celsius and to cool the at least 75⁰ Celsius hot slurry to at least below 40⁰ Celsius, and guiding the at least below 40⁰ Celsius cold slurry to a slurry reservoir. Furthermore, a slurry treatment plant for reducing methane emission from slurry is disclosed.

Original languageEnglish
IPCC05F 17/ 50 A I
Patent numberWO2021259436
Filing date23/06/2020
Country/TerritoryInternational Bureau of the World Intellectual Property Organization (WIPO)
Priority date23/06/2020
Priority numberEP20200181606
Publication statusPublished - 30 Dec 2021

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