METHOD AND PROCESS FOR DRY DISCHARGE IN A PRESSURIZED PRETREATMENT REACTOR
First Claim
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1. A reactor for the treatment of lignocellulosic material, the reactor comprising:
- a vessel having an upper portion and a lower portion,wherein the upper portion (i) is adapted to receive biomass and is adapted to pressurize and heat the biomass via a pressurizing gas and (ii) is defined by at least one upper wall,wherein the lower portion (i) is adapted to receive the pressurized biomass and is adapted to facilitate hydrolysis or autohydrolysis of the biomass without excess or free liquid, (ii) comprises at least one lower wall comprising a corrosion resistant material, and (iii) is configured to transport the biomass without a transport liquid,wherein a pressure envelope is formed between an outer wall of the vessel and the at least one lower wall,and wherein the upper portion of the vessel and the pressure envelope are operatively connected with a pressurization line, such that a pressure of the pressure envelope and a pressure of the upper portion may be equalized.
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Abstract
A reactor for the treatment of lignocellulosic material and related methods. The reactor includes a vessel having an upper portion and a lower portion. A pressure envelope is formed between an outer wall of the vessel and at least one lower wall of the lower portion of the vessel, and the upper portion of the vessel and the pressure envelope are operatively connected with a pressurization line, such that a pressure of the pressure envelope and a pressure of the upper portion may be equalized.
6 Citations
18 Claims
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1. A reactor for the treatment of lignocellulosic material, the reactor comprising:
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a vessel having an upper portion and a lower portion, wherein the upper portion (i) is adapted to receive biomass and is adapted to pressurize and heat the biomass via a pressurizing gas and (ii) is defined by at least one upper wall, wherein the lower portion (i) is adapted to receive the pressurized biomass and is adapted to facilitate hydrolysis or autohydrolysis of the biomass without excess or free liquid, (ii) comprises at least one lower wall comprising a corrosion resistant material, and (iii) is configured to transport the biomass without a transport liquid, wherein a pressure envelope is formed between an outer wall of the vessel and the at least one lower wall, and wherein the upper portion of the vessel and the pressure envelope are operatively connected with a pressurization line, such that a pressure of the pressure envelope and a pressure of the upper portion may be equalized. - View Dependent Claims (2, 3, 4, 5)
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6. A method of hydrolyzing a biomass material, the method comprising the steps of:
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feeding biomass material to a vessel having an upper portion and a lower portion; pressurizing the biomass in tie upper portion using a pressurizing agent; transferring the pressurized biomass to the lower portion in which hydrolysis or autohydryolsis reaction occurs without excess or free liquid; and transferring the hydrolyzed biomass from the lower portion without introduction of a transport liquid; wherein a pressure envelope is formed between an outer wall of the vessel and at least one lower wall of the lower portion, and equalizing a pressure of the pressure envelope and a pressure of the upper portion via a pressurization line that connects the pressure envelope and the upper portion of the vessel. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification