[특허]Apparatus and process for pre-hydrolysis of biomass

RM Materials Refratarios LTDA

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특허 상세정보

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Apparatus and process for pre-hydrolysis of biomass

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16J-012/00
미국특허분류(USC)	127/001; 422/129; 422/198; 220/592.27
출원번호	US-0018360 (2000-06-23)
우선권정보	BR-9902607 (1999-06-23)
국제출원번호	PCT/BR00/00065 (2002-05-19)
§371/§102 date	20020519 (20020519)
국제공개번호	WO00/78446 (2000-12-28)
발명자 / 주소	Pinatti, Daltro Garcia Soares, Alvaro Guedes
출원인 / 주소	RM Materials Refratarios LTDA
대리인 / 주소	Smith, Gambrell &
인용정보	피인용 횟수 : 20 인용 특허 : 9

초록

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.

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1. 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. 2. The apparatus according to claim 1, wherein the external shell and the internal shell are made of a structural material and corrosion resistant material, respectively.3. The apparatus according to claim 1, wherein the external shell and internal shell are made of microbonded carbon steel and refractory metal, the latter including its alloys, respectively.4. The apparatus according to claim 1, wherein the apparatus is used as a thermo-chemical reactor in pre-hydrolysing biomass.5. The apparatus according to claim 1, wherein the apparatus is used as a reactor in a process of mineral digestion.6. The apparatus according to claims 1, wherein the apparatus is used as a batch reactor.7. The apparatus according to claim 1, wherein the external shell and the internal shell are mounted by simple juxtaposition, free from welding in the different materials.8. The apparatus according to claim 1, wherein the external shell and the internal shell are welded together and protection rings or plates of the same metal as the coating are placed on the welding of the parts and edges.9. The apparatus according to claim 1, further comprising at least one device for detecting and monitoring the vacuum between the external shell and the internal shell.10. The apparatus according to claim 9, wherein the at least one detection and monitoring device detects vacuum microleakage, so as to enable one to detect microcracks in the internal shell.11. The apparatus according to claim 9, wherein the at least one detection and monitoring device detects microcracks in a continuous way.12. The apparatus according to claim 9, wherein the at least one detection and monitoring device detects microcracks in a scheduled intermittent manner.13. The apparatus according to claim 9, wherein helium gas is introduced into the apparatus for detecting microcracks in the internal coating.14. The apparatus according to claim 9, wherein microleakage detectors are coupled to the vacuum line.15. The apparatus according to claim 1, further comprising a mechanism for generating a rotational movement in said vessel.16. The apparatus according to claim 15, wherein the mechanism for generating a rotational movement in said vessel comprises a chain and a hydraulic motor commanded by microswitches.17. The apparatus according 1, further comprising a helical feeder for feeding and compacting a product to be processed in the apparatus.18. The apparatus according to claim 17, wherein the helical feeder can be uncoupled after the apparatus has been filled.19. The apparatus according to claim 1, wherein said vessel includes a large openable cover for discharging processed solid material.20. The apparatus according to claim 1, further comprising a tilting mechanism for tilting the vessel to permit the discharge of processed solid material.21. The apparatus according to claim 1, further comprising a transporting cart for transporting said vessel.22. 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. 23. The apparatus according to claim 22 wherein said internal coating is more resistant than said external shell to biomass hydrolysis process chemical corrosion.24. The apparatus according to claim 22 wherein said external shell is a carbon steel.25. The apparatus according to claim 22 wherein said external shell is thicker than said internal coating.26. The apparatus according to claim 22 wherein said internal coating is more resistant than said external shell to biomass pre-hydrolysis process or mineral digestion process chemical corrosion.27. The apparatus according to claim 22 wherein the internal coating has a higher melt temperature than said external shell.28. The apparatus according to claim 27 further comprising welds between said internal coating and said external shell formed in regions wherein interior reaction chamber access openings are formed in said external shell, and said apparatus further comprising sacrifice rings in weld regions to protect the internal coating from contamination by material from the lower melt temperature external shell.29. The apparatus according to claim 22 further comprising a vacuum level monitor that monitors a change in vacuum level in a vacuum space between said external shell and coating which is indicative of a leak in said reactor.30. The apparatus according to claim 22 wherein said external shell is formed of a carbon steel and said internal coating is formed of a corrosion resistant refractory metal selected from the group of Ti, Zr, Nb, Ta, and alloys thereof.31. 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. 32. The reactor according to claim 31 wherein said second material is more resistant than the first material to biomass hydrolysis process chemical corrosion.33. The reactor according to claim 31 wherein said first material is a carbon steel.34. The reactor according to claim 31 wherein said external shell is thicker than said internal shell.35. The reactor according to claim 31 wherein said second material is more resistant than the first material to mineral digestion process chemical corrosion.36. The reactor according to claim 31 wherein the second material of said internal shell has a higher melt temperature than the first material of said external shell.37. The reactor according to claim 36 further comprising welds between said internal and external shells formed in regions wherein interior reaction chamber access openings are formed in said reactor, and said reactor further comprising sacrifice rings in weld regions to protect the internal shell from contamination by material from the lower melt temperature external shell material.38. The reactor according to claim 31 further comp rising a vacuum level monitor that monitors a change in vacuum level in said vacuum space which is indicative of a leak in said reactor.39. The reactor according to claim 31 wherein said external shell is formed of a carbon steel and said internal shell is formed of a corrosion resistant refractory metal selected from the group of Ti, Zr, Nb, Ta, and alloys thereof.40. A mobile reactor assembly comprising the reactor of claim 31 and a cart supporting said reactor for facilitating transportation of said reactor to a desired location.41. The assembly of claim 40 further comprising means for feeding material to said reactor and means for tilting said reactor that are supported by said cart.42. The assembly of claim 40 further comprising means for rotating and means for oscillating said cart.

이 특허에 인용된 특허 (9)

이 특허를 인용한 특허 피인용횟수: 20

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Apparatus and process for pre-hydrolysis of biomass

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Apparatus and process for pre-hydrolysis of biomass

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