Multi-stage rapid vaporization apparatus and method

Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature

Reexamination Certificate

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C429S010000, C422S198000

Reexamination Certificate

active

07638213

ABSTRACT:
A vaporizer is provided for vaporizing liquid in a fluid stream. The vaporizer includes at least two heat exchangers serially arranged in a direction of flow of the fluid stream through the vaporizer for vaporizing liquid in the fluid stream in stages. The heat exchangers each comprise a first plurality of thermally conductive flow channels through which the fluid stream flows and a second plurality of thermally conductive flow channels through which a heating stream flows and which are in heat exchange relationship with the first plurality of thermally conductive flow channels. A liquid supply means is provided for adding liquid to a downstream heat exchanger. The added liquid mixes with the vaporized stream exiting an upstream heat exchanger for vaporization in the downstream heat exchanger.

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patent: 5316871 (1994-05-01), Swathirajan et al.
patent: 5637415 (1997-06-01), Meltser et al.
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patent: 6241953 (2001-06-01), Krijgsman
patent: 2001/0014301 (2001-08-01), Nakamura et al.
patent: 2003/0138681 (2003-07-01), Boneberg et al.

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