Fpinnovations

George Sacciadis

Richard M Berry

Michael Paleologou

Gilles Marcel Dorris

Naceur Jemaa

Yaolin Zhang

Yuxia Ben

Michelle Agnes Ricard

Gilles Brunette

Dian-Qing Yang

Xiaolin Cai

Nicolas Dery

Sebastien Lebel

Xixian (James) Deng

Xixian (james) Deng

A method of producing ultra-low density fiber composite (ULDC) foam materials using natural fibers with gas injection through liquid foaming is disclosed, wherein in a particular embodiment includes also cellulose filaments. The method includes a continuous overflow foaming process and a novel apparatus to produce the ULDC materials. The disclosed ULDC composite foam produced includes moisture, mold, decay and fire resistant properties which can be used for building thermal and acoustic insulations, protection packaging, air filter products, hygiene products. The apparatus comprise a vessel, counter rotating dual impellor, a plurality of baffles and gas injection that produce.

Method of producing ultra-low density fiber composite materials

Steam stripper off gas from chemical pulp mills, for example kraft or sulphite pulp mills is rich in methanol and totally reduced sulphur (TRS) compounds. This gaseous stream is usually burned to avoid further handling of this TRS-rich, odorous stream. We found that once this gaseous stream is condensed, it can be used as a reducing agent in the chlorine dioxide generator, in place of purchased methanol. Surprisingly, we found that, in addition to the methanol component, the TRS components act as reducing agents during the production of chlorine dioxide or, at the very least, do not consume chlorine dioxide. The use of this stream in the ClOgenerator will allow pulp mills to reduce or eliminate the consumption of purchased methanol while providing a new approach to deal with TRS compounds in the chlorine dioxide generator rather than employing a dedicated TRS incinerator or any other combustion device.

Use of chemical pulp mill steam stripper off gases condensate as reducing agent in chlorine dioxide production

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Laval, Canada

George Sacciadis