Monolithic catalyst supports are extruded structures that are the core of many catalytic converters, most diesel particulate filters, and some catalytic reactors. Most catalytic converters are used for vehicle emissions control. Stationary catalytic converters can reduce air pollution from fossil fuel power stations.

What is the point of a monolith?

A monolith is a geological feature consisting of one single stone, rock or slab of material. Monoliths are often shaped into serving as a pillar for a monument.

Why are monoliths built?

The first reason to build a monolithic system is to help tame the unknowns. Pick up any book or article on getting started with microservices, and it will describe a process for breaking down a system into component services. But if you are just starting out, you don't yet have a system to break down.