Method for purifying quench water and scrubbing water from...

Details Method for purifying quench water and scrubbing water from... Method for purifying quench water and scrubbing water from...

2009-04-21

2011-12-27

Reifsnyder, David A (Department: 1778)

Liquid purification or separation

Processes

Separating

C210S788000, C210S805000, C210S806000, C210S195100, C210S512200, C585S639000, C585S640000, C585S809000

Reexamination Certificate

active

08083951

ABSTRACT:
The invention provides a method for purifying MTO quench water and scrubbing water via mini-hydrocyclone separation, comprising: removing the entrapped catalyst particles from the MTO quench water via mini-hydrocyclone separation; cooling the quench water purified by mini-hydrocyclone separation so as to effect the recycling of water; removing the entrapped catalyst particles from the MTO quench water to be stripped via mini-hydrocyclone separation, so as to reduce the deposition of the catalyst particles within the stripping tower; removing the entrapped catalyst particles from the MTO scrubbing water via mini-hydrocyclone separation; and cooling the scrubbing water purified via mini-hydrocyclone separation so as to effect the recycling of water. The invention also provides an apparatus for purifying MTO quench water and scrubbing water via mini-hydrocyclone separation.

REFERENCES:
patent: 5744680 (1998-04-01), Mulvaney, III et al.
patent: 6166282 (2000-12-01), Miller
patent: 6870072 (2005-03-01), Lumgair et al.
patent: 7119241 (2006-10-01), Beech et al.
patent: 7329790 (2008-02-01), Bjorklund et al.
patent: 2005/0234281 (2005-10-01), Bjorklund et al.
patent: 1942558 (2007-04-01), None

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