发明授权
- 专利标题: Apparatus and method for improved hydrate formation and improved efficiency of recovery of expansion agent in processes for expanding tobacco and other agricultural products
- 专利标题(中): 改进水合物形成的装置和方法,并且在扩大烟草和其他农产品的方法中提高膨胀剂的回收效率
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申请号: US09203199申请日: 1998-11-30
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公开(公告)号: US06209546B1公开(公告)日: 2001-04-03
- 发明人: Donald A. Baehl , Jack B. Knight , Truman W. Ellison
- 申请人: Donald A. Baehl , Jack B. Knight , Truman W. Ellison
- 主分类号: A24B318
- IPC分类号: A24B318
摘要:
An apparatus and a method for recovering additional expansion agent in a process for the expansion of tobacco or another agricultural product are disclosed. One embodiment is a method for recovering additional expansion agent in a process for the expansion of tobacco or another agricultural product, the process having a multi-step depressurization sequence including at least first and second depressurization steps for depressurizing an impregnation vessel, which includes the following steps: withdrawing substantially all of an amount of an expansion agent in the impregnation vessel at about the end of the second depressurization step during the multi-step depressurization sequence; and transmitting at least a portion of said amount of expansion agent to a low-pressure gas tank. In one embodiment, the expansion agent is carbon dioxide.
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