WATER GAS SHIFT CATALYST OPERATING AT MEDIUM TEMPERATURES AND A PROCESS FOR ITS PREPARATION

摘要

Hydrotalcite-type compound of the formula (I): Cu x �¢ Zn y �¢ Al w �¢ OH 2 2 �¢ x + 2 �¢ y + 3 �¢ w - 2 + �¢ A 2 - 2 �¢ x + 2 �¢ y + 3 �¢ w - 2 / 2 , k H 2 �¢ O Wherein (A 2- ) represents either a carbonate anion or a silicate anion, x > 0, y >0, w >0, (x + y) = (1-w), 1< [(x+y)/w] < 5, and 1/99 ‰¤ x/y ‰¤ 1/1 ; a synthesis process for its preparation; a catalyst obtained by its calcination and the subsequent reduction of the calcined product.