Hydrogenation of aromatic compounds

Abstract

A catalyst useful for hydrogenation of aromatic compounds to produce hydrogenated cyclic compound, the catalyst comprising from 4 to 10 wt. % Ni and 0.2 up to about 0.9 wt. % Cu deposited on a transition alumina support having a BET surface area from about 40 to 180 m 2 /g and pore volume from about 0.3 to about 0.8 cc/g.

1 . A copper modified nickel catalyst useful for the hydrogenation of aromatic compound to produce a hydrogenated cyclic compound, the catalyst comprising
 4 to 10 wt. % Ni and about 0.2 to 0.9 wt. % Cu deposited on a transition alumina support having a BET surface area from about 40 to 180 m 2 /g and a pore volume from about 0.3 to about 0.8 cc/g.   
     
     
         2 . The catalyst according to  claim 1  wherein the catalyst contains one or more modifiers selected from the group consisting of Ag, Ru, Re, Zn, Mo and Pd. 
     
     
         3 . The catalyst according to  claim 1  wherein the Cu content is about 0.2 to 0.4 wt. %. 
     
     
         4 . The catalyst according to  claim 1  wherein the Ni content of the catalyst is about 9 to 10 wt %. 
     
     
         5 . The catalyst according to  claim 1 :
 wherein the Ni content of the catalyst is about 9 to 10 wt %;   wherein the Cu content is about 0.2 to 0.4 wt. %; and   wherein the catalyst contains one or more modifiers selected from the group consisting of Ag, Ru, Re, Zn, Mo and Pd.   
     
     
         6 . The catalyst according to  claim 1 , wherein the transition alumina support is obtained by calcining at a temperature in the range from about 850 to about 1200° C. 
     
     
         7 . The catalyst according to  claim 1 , wherein the transition alumina support has a BET surface area from about 50 to about 120 m 2 /g. 
     
     
         8 . The catalyst according to  claim 1 , wherein the transition alumina comprises one or more of delta alumina, theta alumina, and kappa alumina. 
     
     
         9 . A copper modified nickel catalyst useful for the hydrogenation of benzene to produce cyclohexane, the catalyst comprising
 4 to 10 wt. % Ni and about 0.2 to 0.9 wt. % Cu deposited on a transition alumina support having a BET surface area from about 40 to 180 m 2 /g and a pore volume from about 0.3 to about 0.8 cc/g.   
     
     
         10 . The catalyst according to  claim 9  wherein the catalyst contains one or more modifiers selected from the group consisting of Ag, Ru, Re, Zn, Mo and Pd. 
     
     
         11 . The catalyst according to  claim 9  wherein the Cu content is about 0.2 to 0.4 wt. %. 
     
     
         12 . The catalyst according to  claim 9  wherein the Ni content of the catalyst is about 9 to 10 wt %. 
     
     
         13 . The catalyst according to  claim 9 :
 wherein the Ni content of the catalyst is about 9 to 10 wt %;   wherein the Cu content is about 0.2 to 0.4 wt. %; and   wherein the catalyst contains one or more modifiers selected from the group consisting of Ag, Ru, Re, Zn, Mo and Pd.   
     
     
         14 . The catalyst according to  claim 9 , wherein the transition alumina support is obtained by calcining at a temperature in the range from about 850 to about 1200° C. 
     
     
         15 . The catalyst according to  claim 9 , wherein the transition alumina support has a BET surface area from about 50 to about 120 m 2 /g. 
     
     
         16 . The catalyst according to  claim 9 , wherein the transition alumina comprises one or more of delta alumina, theta alumina, and kappa alumina.