Method and apparatus for processing organic material
AssigneePreseco Oy
InventorJussi Järventie
Life of this patent
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Abstract
A method and an apparatus for processing organic material, the method employing at least two reactors and including the steps of combining carbon dioxide or carbon-dioxide containing gas and ammonia or ammonia-containing material in a first reactor to form a buffer compound/buffer compounds, then feeding the buffer compound or buffer compounds formed in the first reactor into a second reactor, and performing bioconversion on organic material in the second reactor. In that case, the carbon dioxide of the mixed carbon dioxide gas reacts with the ammonia, forming a buffer compound, such as ammonium bicarbonate and/or ammonium carbonate.
Claims21
A method for bioconversion of organic material, which employs at least two reactors and comprises the steps of
- a) combining carbon dioxide or carbon-dioxide containing gas and ammonia or ammonia-containing material in a first, pressurized reactor to form a buffer compound/buffer compounds,
- b) feeding the buffer compound or buffer compounds formed in the at least one first reactor into at least one second reactor, and
- c) performing bioconversion on organic material in the at least one second reactor to produce biogas and hydrolyzed or partly hydrolyzed organic material.
An apparatus for bioconversion of organic material, which comprises at least one first pressurized reactor configured to combine carbon dioxide or carbon dioxide-containing gas and ammonia or ammonia-containing material to form a buffer compound/buffer compounds,
- a pipe configured to feed carbon dioxide or carbon dioxide-containing gas into the at least one first pressurized reactor,
- a pipe configured to feed ammonia or ammonia-containing material into the least one first pressurized reactor,
- at least one second reactor configured to perform bioconversion,
- a pipe configured to transfer the buffer compound/compounds from the at least one first pressurized reactor to the at least one second reactor,
- a pipe configured to transfer organic material to the at least one second reactor,
- a pipe configured to transfer biogas from the at least one second reactor, and
- a pipe configured to transfer hydrolyzed or partly hydrolyzed organic material from the at least one second reactor.
Dependencies are inferred from the claim text.