Method of monitoring and recovering oxygen-rich gas from ozone b

Details Method of monitoring and recovering oxygen-rich gas from ozone b Method of monitoring and recovering oxygen-rich gas from ozone b

1995-12-11

1997-11-18

Alvo, Steven

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With regeneration, reclamation, reuse, recycling or...

162 40, 162 49, 162 62, 162 65, D21C 9147, D21C 9153, D21C 1106

Patent

active

056883676

ABSTRACT:
A method and installation for bleaching a lignocellulosic pulp with ozone, while recovering an oxygen-rich gas which may be recycled or re-used. Bleaching of the pulp with ozone is preferably carried out under conditions in which ingress of air is prevented. In a multi-step bleaching process, an oxygen-rich vent gas typically containing at least 90%, by weight, of oxygen may be recovered from a second contactor for potential use in different oxygen-consuming operations in a pulp mill.

REFERENCES:
patent: 3668063 (1972-06-01), Engstrom
patent: 5087326 (1992-02-01), Jones
patent: 5296097 (1994-03-01), Friend
patent: 5296099 (1994-03-01), Griggs et al.
patent: 5411633 (1995-05-01), Phillips et al.
Henricson et al, "New Generation Kraft Pulping and Bleaching Technology", Ahlstrom, Apr. 1992.
Bleaching: A Tappi Press Anthology, vol. 2, 1993, pp. 110-117, Norman Liebergott, et al., "A Survey of the Use of Ozone in Bleaching Pulps, Part 2".
Bleaching: A Tappi Press Anthology, vol. 2, 1993, pp. 197-209, T. Laxen, et al., "Medium Consistency Ozone Bleaching".
Abstracts Bulletin of the Institute of Paper Chemistry, vol. 43, No. 6, p. 608, 1972, AN-6227.

Affiliated with

Also associated with

Rating

Method of monitoring and recovering oxygen-rich gas from ozone b does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of monitoring and recovering oxygen-rich gas from ozone b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of monitoring and recovering oxygen-rich gas from ozone b will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1562761