Apparatus and process for pre-hydrolysis of biomass
AssigneeRM Materials Refratarios LTDA
InventorsDaltro Garcia Pinatti, Alvaro Guedes Soares
Life of this patent
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Abstract
An apparatus for the processing of pre-hydrolysis of biomass, particularly a reactor of the failsafe type, either mobile or not, which may be manufactured of microbonded carbon steel and coated with special material (refractory metals, plastics, etc.). The insertion of vacuum between the shell of the reactor and its coating prevents its implosion and permits the detection of leakage with the helium gas. The resistance to corrosion of the refractory metals enables carrying out of pre-hydrolysis and mineral digestion.
Claims42
An apparatus comprising:
- a sealable vessel for processing materials especially for carrying out pre-hydrolysis of a biomass or for carrying out digestion of a mineral, said sealable vessel including:
- an external shell, and
- an internal shell, the internal shell being mounted on the external shell;
- there being a space between the internal shell and the external shell, and a vacuum being produced in the space produced between the internal shell and the external shell,
- wherein the internal shell is a coating;
- and
- implosion of the coating is prevented through the vacuum maintained between the coating and the external shell so as to allow the coating and the external shell to be properly juxtaposed.
The apparatus according 1, further comprising a helical feeder for feeding and compacting a product to be processed in the apparatus.
An apparatus for processing materials especially for carrying out pre-hydrolysis of a biomass or for carrying out digestion of a mineral, comprising:
- an external shell;
- and
- an internal coating in juxtaposed contact with said external shell,
- wherein the external shell and the internal coating are kept in contact via a vacuum created between the external shell and the internal coating.
A chemical reactor, comprising:
- an external shell of a first material having an interior surface which extends, without a direct contact, about an interior corrosive chemical environment reaction region within said reactor;
- an internal shell formed of a second material different than said first material and having an inner surface and an outer surface that extend along with the interior surface of said external shell so as to also extend, in a direct contact, about the interior corrosive chemical environment reaction region of said reactor, and said outer surface of said internal shell and said interior surface of said external shell are arranged so as to define a vacuum space therebetween and are arranged in a manner which, when a vacuum is generated in said vacuum space, said outer surface of said internal shell and said interior surface of said external shell are placed in direct contact whereby said internal shell is precluded from expansion during a reaction process due to contact confinement by said external shell and the vacuum generated precludes the internal shell from imploding upon a drop in pressure in the reaction chamber.
Dependencies are inferred from the claim text.