KaiRui Environmental Protection’s tert-butanol dehydration process is a production process that uses tert-butanol as the feedstock and employs catalytic distillation technology to produce high-purity isobutene.

Process Features:

1. The process employs catalytic distillation technology—a technique that combines catalytic reaction and distillation separation within a single tower. In the tower’s reaction section, tert-butanol reacts to produce isobutylene while simultaneously undergoing further separation. This approach offers advantages such as low energy consumption, a small footprint, and a simple process flow.

2. The process exhibits strong feedstock adaptability, allowing for the use of tert-butanol produced by isobutylene hydration or tert-butanol generated as a byproduct from PO/TBA units.

3. The process utilizes a catalytic distillation module filled with resin catalyst. Compared to traditional inorganic catalyst-mediated reactions, this approach offers advantages such as lower reaction temperatures and a longer service life.

Patents related to this process include: A Catalyst for the Dehydration of tert-Butanol to Produce Isobutylene and Its Preparation Method (CN201310511142.X), A reaction tower for the high-efficiency dehydration of tert-butanol to produce high-purity isobutene (CN20212 1225961.4), and A process unit for producing high-purity isobutene (CN202220299338.1).