Reaction apparatus for producing vapor-grown carbon fibers and continuous production system thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-019/00
D01F-009/12
D01F-009/133
C23C-016/00
B01D-047/00
출원번호
US-0217371
(2005-09-02)
등록번호
US-7374731
(2008-05-20)
발명자
/ 주소
Wang,Chun Shan
Huang,Ya Jen
Tan,Yen Chu
Ko,Kai Jen
Yang,Shih Peng
출원인 / 주소
Yonyu Plastics Co., Ltd.
대리인 / 주소
Rosenberg Klein & Lee
인용정보
피인용 횟수 :
4인용 특허 :
2
초록▼
A reaction apparatus for producing vapor-grown carbon fibers (VGCF) and a continuous production system for producing VGCF are disclosed. The VGCF reaction apparatus is featured in installing a plurality of holes on the upper portion of inner tubes; and filling thermally conductive material in the ar
A reaction apparatus for producing vapor-grown carbon fibers (VGCF) and a continuous production system for producing VGCF are disclosed. The VGCF reaction apparatus is featured in installing a plurality of holes on the upper portion of inner tubes; and filling thermally conductive material in the areas between the inner tubes and the outer tube. The continuous production system includes the reaction apparatus, a product collection system and a carrier-gas collecting system, wherein carbon fibers produced by the reaction apparatus fall into the product collection system, and in the product collection system, a collection bin full-loaded with carbon fibers is pushed out and an empty bin is pushed into the collection chamber under PLC control as well as atmosphere replacement with inert gas, thereby continuously producing VGCF.
대표청구항▼
What is claimed is: 1. A reaction apparatus for producing vapor-grown carbon fibers (VGCF), comprising: a vertical tubular reactor, comprising: an outer tube; a first inner tube located in said outer tube, wherein one end of said first inner tube is aligned with one end of said outer tube, and ther
What is claimed is: 1. A reaction apparatus for producing vapor-grown carbon fibers (VGCF), comprising: a vertical tubular reactor, comprising: an outer tube; a first inner tube located in said outer tube, wherein one end of said first inner tube is aligned with one end of said outer tube, and there are a plurality of first holes distributed on the tube wall of said first inner tube, and said one end of said first inner tube has a first gas inlet used for introducing raw material gas; a second inner tube located below said first inner tube in said outer tube, wherein there are a plurality of second holes distributed on the tube wall of an upper portion of said second inner tube; and a thermal-conductive material filled in a filler portion extending from the area between said first inner tube and said outer tube to the area between said second inner tube and said outer tube, wherein said outer tube has a second gas inlet located on below said thermal-conductive material for introducing first carrier gas; and a heater installed externally to said outer tube for heating a portion of said outer tube. 2. The reaction apparatus of claim 1, wherein said first inner tube is spaced from said second inner tube at a predetermined distance. 3. The reaction apparatus of claim 1, wherein said first inner tube and said second inner tube are separated from each other with a division plate. 4. The reaction apparatus of claim 1, wherein there is a third gas inlet located on said one end of said outer tube, and said third gas inlet is located between said outer tube and said first inner tube for introducing second carrier gas to cool down the upper end of said outer tube and said first inner tube. 5. The reaction apparatus of claim 4, wherein said first carrier gas and said second carrier gas are hydrogen. 6. The reaction apparatus of claim 1, wherein both ends of said heater are respectively spaced from both ends of said outer tube at a first predetermined distance and a second predetermined distance, and said heater is corresponding to a portion of said first inner tube and a portion of said second inner tube. 7. The reaction apparatus of claim 1, wherein the length of said filler portion corresponding to said second inner tube is greater than the length of said second holes corresponding to said second inner tube. 8. The reaction apparatus of claim 1, further comprising: a pre-heater located outside the vertical tubular reactor, wherein said pre-heater is connected to said first gas inlet for pre-heating said raw material gas. 9. The reaction apparatus of claim 1, wherein said raw material gas comprises a hydrocarbon compound, a catalyst and a third carrier gas. 10. The reaction apparatus of claim 9, wherein said third carrier gas is hydrogen. 11. The reaction apparatus of claim 1, wherein said thermal conductive material is selected from the group consisting of ceramic, metal, quartz glass and the mixtures thereof. 12. The reaction apparatus of claim 1, wherein said outer rube, said first inner tube and said second inner tube are made of the material selected from the group consisting of aluminum oxide, silicon carbide, quartz, mullite and silicon nitride. 13. A continuous production system for producing VGCF, comprising: a reaction apparatus comprising a vertical tubular reactor and a heater, wherein reaction gas formed by mixing raw material gas with carrier gas is introduced into said reaction apparatus for producing said VGCF via pyrolysis with effluent gas remaining, said vertical tubular reactor comprising: an outer tube, wherein said heater is installed externally to said outer tube for heating a portion of said outer tube; a first inner tube located in said outer tube, wherein one end of said first inner tube is aligned with one end of said outer tube, and there are a plurality of first holes distributed on the tube wall of said first inner tube, and said one end of said first inner tube has a first gas inlet used for introducing raw material gas; a second inner tube located below said first inner tube in said outer tube, wherein there are a plurality of second holes distributed on the tube wall of an upper portion of said second inner tube; and a thermal-conductive material filled in a filler portion extending from the area between said first inner tube and said outer tube to the area between said second inner tube and said outer tube, wherein said outer tube has a second gas inlet located on below said thermal-conductive material for introducing first carrier gas; a product-collecting system connected to the lower end of said second inner tube or continuously collecting said VGCF by using a dry-collection method, wherein said product-collecting system comprises: a circulating rooms set divided into an air atmosphere area and an inert atmosphere area; and a collection-bins set having a plurality of bins, wherein said bins move circulatively in said air atmosphere area and said inert atmosphere area; and a carrier-gas collecting system connected to said product-collecting system for collecting and purifying recyclable carrier gas from said effluent gas expelled from said product-collecting system by water-washing, said carrier-gas collecting system comprising: a water-washing vessel, wherein a water flow is introduced into said water-washing vessel for washing said effluent gas so as to obtain a residual product and said recyclable carrier gas. 14. The continuous production system of claim 13, wherein said air atmosphere area is divided into a first air-atmosphere sub-area, a second air-atmosphere sub-area and a third air-atmosphere sub-area; and said inert atmosphere area is divided into a first inert-atmosphere sub-area, a second inert-atmosphere sub-area and a third inert-atmosphere sub-area, wherein both opposite sides of said second air-atmosphere sub-area are open respectively to said first air-atmosphere sub-area and said third air-atmosphere sub-area, and said second inert-atmosphere sub-area is isolated from said second air-atmosphere sub-area, and said second inert-atmosphere sub-area is open to said reaction apparatus for collecting said VGCF; and said bins are a first bin, a second bin adjacent to said first bin, a third bin and a fourth bin adjacent to said third bin, and said first bin is spaced from said third bin with a first division, and said second bin is spaced from said fourth bin with a second division, wherein when said first division is said first inert-atmosphere sub-area, said second division is said third air-atmosphere sub-area; and, when said first division is said first air-atmosphere sub-area, said second division is said third inert-atmosphere sub-area, said product-collecting system further comprising: a first gate mounted between one side of said second inert-atmosphere sub-area and said first inert-atmosphere sub-area; a second gate mounted between said third inert-atmosphere sub-area and the other side of said second inert-atmosphere sub-area opposite to said first inert-atmosphere sub-area; a third gate mounted between said first inert-atmosphere sub-area and said first air-atmosphere sub-area; a fourth gate mounted between said third inert-atmosphere sub-area and said third air-atmosphere sub-area; a first push-equipment set respectively mounted on said first inert-atmosphere sub-area and said third air-atmosphere sub-area for pushing the bins of said collection-bins set to said second inert-atmosphere sub-area and said second air-atmosphere sub-area; a second push-equipment set respectively mounted on said first air-atmosphere sub-area and said third inert-atmosphere sub-area for pushing the bins of said collection-bins set to said first inert-atmosphere sub-area and said third air-atmosphere sub-area; and a gas-swapping apparatus used for replacing the atmosphere in said inert atmosphere area with an inert atmosphere. 15. The continuous production system of claim 14, wherein said inert atmosphere is nitrogen atmosphere. 16. The continuous production system of claim 13, wherein said first push-equipment set is composed of a pair of first pushing devices of which the pushing directions are opposite, and said second push-equipment set is composed of a pair of second pushing devices of which the pushing directions are opposite. 17. The continuous production system of claim 13, wherein said first gate and said second gate are opened simultaneously. 18. The continuous production system of claim 13, wherein said third gate and said fourth gate are opened simultaneously. 19. The continuous production system of claim 13, wherein said carrier-gas collecting system further comprises: a fan mounted on the top of said water-washing vessel for withdrawing said recyclable carrier gas out of said water-washing vessel; and a filter connected to the bottom of said water-washing vessel for separating water content from residual solids in said residual product. 20. The continuous production system of claim 19, wherein said carrier-gas collecting system further comprises: a combustion device connected to said fan for combusting said recyclable carrier gas.
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이 특허에 인용된 특허 (2)
Rangarajan, Bharath; Singh, Bhanwar; Subramanian, Ramkumar, Fab correlation system.
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