Two stage pyrolysis–catalysis of used tyres was undertaken to upgrade the derived oil to a highly aromatic oil suitable to be used as a chemical feedstock rather than a liquid fuel. The tyres were pyrolysed in a fixed bed reactor and the evolved pyrolysis gases were passed through a secondary fixed bed reactor containing zeolite catalyst. The pyrolysis reactor was maintained at 500 °C and the influence of catalyst temperature between 430 and 600 °C on the yield and composition of the derived oils was examined......
From: http://www.antenchem.com/TECHNOLOGY/ZSM5.html
Showing posts with label desiccant. Show all posts
Showing posts with label desiccant. Show all posts
Sunday, August 24, 2008
How many types of zeolites are there?
There are numerous naturally occurring and synthetic zeolites, each with a unique structure. The pore sizes commercially available range from approximately 3 ? to approximately 8 ?. Some of the commercial materials are: A, beta, mordenite, Y, ZSM-5.
from: http://www.antenchem.com/
from: http://www.antenchem.com/
What makes zeolites special when compared with other inorganic oxide materials?
The combination of many properties, among them: the microporous character of the uniform pore dimensions, the ion exchange properties, the ability to develop internal acidity, the high thermal stability, the high internal surface area. These make zeolites unique among inorganic oxides.
From: http://www.antenchem.com
From: http://www.antenchem.com
Subscribe to:
Posts (Atom)
Posts
