作者：M. A. L. Braulio, V. C Pandolfelli, J. Medeiros, J. B. Gallo

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刊名：refractories worldforum

ISSN：

出版年：2013-06-01

卷：5

期：2

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语种：英文

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内容简介

Energy savings, safe operations, cost reductions and friendly environment are relevant topics for a sustainable industrial growth. In order to overcome these challenges, breakthrough innovation by suitable materials microstructure engineering is a key issue. Bearing in mind that technological advances must mingle basic and applied science, this work addresses the development of a nano-engineered bonded refractory for FCC petrochemical units and alumina calciners. As most of commercial refractories show densification above 1300°C, a different composition approach was designed aiming to fulfill the sintering requirements at lower temperatures. This novel refractory comprises the use of colloidal binders and additives, in order to provide densification in lower temperatures. Considering the outstanding performance attained by these castables (high erosion, hot mechanical and thermal-shock resistances in a wide temperature range), an increase in equipment working life is expected, reducing the remarkable financial losses associated with a production halt.