Catalyst compositions that include zeolites with different silica to alumina molar ratios

A catalyst composition comprising:

• from 10 wt. % to 50 wt. % of matrix material;
• and
• from 10 wt. % to 30 wt. % of binder;
• from 30 wt. % to 70 wt. % of a zeolite mixture, wherein:
• the zeolite mixture comprises all zeolite in the catalyst composition;
• the zeolite mixture comprises at least a first portion of zeolite and a second portion of zeolite;
• the first portion of zeolite consists of zeolite having a silica to alumina molar ratio in a first range and comprises at least 10 wt. % of the zeolite mixture;
• the second portion of zeolite consists of zeolite having a silica to alumina molar ratio in a second range and comprises at least 10 wt. % of the zeolite mixture;
• the silica to alumina molar ratio range of the first portion of zeolite and the silica to alumina molar ratio range of the second portion of zeolite do not overlap and are separated by at least 5;
• the midpoint of the silica to alumina molar ratio range of the second portion of zeolite less the midpoint of the silica to alumina molar ratio range of the first portion of zeolite equals at least 15;
• the zeolite mixture further comprises a third portion of zeolite, wherein:
• the third portion of zeolite consists of zeolite having a silica to alumina molar ratio in a third range;
• the silica to alumina molar ratio range of the third portion of zeolite and the silica to alumina molar ratio range of the second portion of zeolite do not overlap;
• and
• the midpoint of the silica to alumina molar ratio range of the third portion of zeolite less the midpoint of the silica to alumina molar ratio range of the second portion of zeolite equals at least 15.

A catalyst composition comprising:

• from 10 wt. % to 50 wt. % of matrix material;
• from 10 wt. % to 30 wt. % of binder;
• from 1 wt. % to 40 wt. % of silicon carbide particles;
• and
• from 30 wt. % to 70 wt. % of a zeolite mixture, wherein:
• the zeolite mixture comprises all zeolite in the catalyst composition;
• the zeolite mixture comprises at least a first portion of zeolite and a second portion of zeolite;
• the first portion of zeolite consists of zeolite having a silica to alumina molar ratio in a first range and comprises at least 10 wt. % of the zeolite mixture;
• the second portion of zeolite consists of zeolite having a silica to alumina molar ratio in a second range and comprises at least 10 wt. % of the zeolite mixture;
• the silica to alumina molar ratio range of the first portion of zeolite and the silica to alumina molar ratio range of the second portion of zeolite do not overlap and are separated by at least 5;
• the midpoint of the silica to alumina molar ratio range of the second portion of zeolite less the midpoint of the silica to alumina molar ratio range of the first portion of zeolite equals at least 15.