APPARATUS FOR PRETREATMENT FOR SACCHARIFICATION OF LIGNOCELLULOSE BIOMASS
First Claim
1. An apparatus for pretreatment for saccharification of lignocellulose biomass comprising a mixing unit which mixes lignocellulose biomass and ammonia, a first heating unit which heats a biomass-ammonia mixture provided by the mixing unit, a separation unit which separates ammonia gas from the biomass-ammonia mixture heated by the first heating unit to obtain a biomass-water mixture, and a transfer unit which transfers the biomass-water mixture separated by the separation unit to a later step, wherein the apparatus further comprisesan ammonia water supply unit which supplies ammonia water having an ammonia concentration of 5 to 35 wt % to the mixing unit, andan ammonia recovery unit which recovers ammonia gas as ammonia water by dissolving ammonia gas separated by the separation unit in water.
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Accused Products
Abstract
To provide an apparatus for pretreatment for saccharification easily and continuously applying a treatment and capable of reusing ammonia at low cost. The apparatus has a mixing unit 2, a first heating unit 3, a separation unit 4, a transfer unit 6, an ammonia water supply unit 8 and an ammonia recovery unit 19. The apparatus may have the first heat exchanger 18, a second heat exchanger 25 and a heat supply unit 27 and further has a second heating unit 14. The apparatus may have a wet grinding unit 32 between the heating unit 3 and 25.
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Citations
8 Claims
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1. An apparatus for pretreatment for saccharification of lignocellulose biomass comprising a mixing unit which mixes lignocellulose biomass and ammonia, a first heating unit which heats a biomass-ammonia mixture provided by the mixing unit, a separation unit which separates ammonia gas from the biomass-ammonia mixture heated by the first heating unit to obtain a biomass-water mixture, and a transfer unit which transfers the biomass-water mixture separated by the separation unit to a later step, wherein the apparatus further comprises
an ammonia water supply unit which supplies ammonia water having an ammonia concentration of 5 to 35 wt % to the mixing unit, and an ammonia recovery unit which recovers ammonia gas as ammonia water by dissolving ammonia gas separated by the separation unit in water.
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6. (canceled)
Specification