HDS CATALYST SUPPORT FROM ALUMINUM HYDROXIDE CONTAINING SULFATES

There are described results of studies on the development of the method of aluminum hydroxide production for supports (Al2O3) of hydrodesulfurization catalysts. Wastes from the developed method are easier utilizable than from other methods. Properties of the aluminum hydroxide being precipitated with ammonia water from aluminum sulfate solution, with aluminum sulfate from sodium aluminate and with ammonium sulfate from sodium aluminate solution are described. The effect of precipitation conditions on basic properties of obtained samples of: aluminum hydroxide, derived oxides (supports) and Co-Mo catalysts on these supports is determined. Precipitation of hydroxide from sodium aluminate solution with aluminum sulfate is found to be the most favourable.