Patent ID: 9399578
Filing Date: 2016-07-26
CPC Classification: B01J,B82Y,C01B,Y10T

Claim Text:
1. Particles comprising: an alumina support; a three-component catalyst that comprises a catalytic component, a multicarboxylic acid and an active component coated on a surface of the alumina support; and carbon nanotubes on a surface of the three-component catalyst, wherein the catalytic component comprises a first catalytic component and a second catalytic component, wherein a number of moles (x) of the first catalytic component, a number of moles (y) of the second catalytic component and a number of moles (z) of the active component satisfy ranges of 30≦x+y≦53, 0.1≦y/[x+y]≦0.95 and 3≦z≦13, based on 100 moles of the alumina support, wherein the each of the particles has a spherical shape having a particle diameter distribution (Dcnt) of 0.5 to 1.0, wherein the particle diameter distribution (Dcnt) is defined by Equation 1: wherein Dn90 is a number average particle diameter which is measured based on 90% in an absorption mode using Microtrac particle diameter analyzer after the particles are immersed in distilled water and then allowed to stand for 3 hours, Dn10 is a number average particle diameter measured based on 10% under the same condition as Dn90, and Dn50 is a number average particle diameter measured based on 50% under the same condition as Dn90, and wherein a molar ratio of the multicarboxylic acid to the active component is in a range of 0.34616 to 0.36665.