Process for reduction of emissions in asphalt production

Details Process for reduction of emissions in asphalt production Process for reduction of emissions in asphalt production

C - Chemistry, Metallurgy

10

G

C10G 7/06 (2006.01) C10C 3/00 (2006.01) C10C 3/06 (2006.01)

Patent

CA 2433196

A process and apparatus are disclosed that relate generally to a process for reducing harmful or unwanted emissions during the production of asphalt, such as blue smoke. The process includes the introduction of a pump around of the wax oil fraction for re-introduction into the vacuum tower. Additional desirable features includes stripping trays below the wax oil collection tray and the feed zone. The results is to produce an asphalt product that creates less blue smoke in the hot mix plant. Another desirable feature is that a product can be created that meets Performance Grade specification with the addition of polymers or other additives.

L'invention porte sur un procédé et un appareil liés d'une manière générale à un procédé de réduction d'émissions nocives et indésirables au cours de la production d'asphalte, telle que la fumée bleue. Ledit procédé consiste à disposer une pompe autour de la fraction d'huile de paraffine pour procéder à une réintroduction dans la tour de vide. D'autres caractéristiques intéressantes comprennent des plateaux d'extraction au-dessous du plateau récupération d'huile de paraffine et de la zone d'alimentation. Le résultat consiste en la production d'un produit d'asphalte qui génère moins de fumée bleue dans l'installation de mélange à chaud. Une autre caractéristique intéressante de l'invention est de pouvoir obtenir un produit, auquel on a ajouté des polymères et d'autres additifs, qui corresponde aux spécifications de niveaux de performances.

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