Increasing your PVC production with CiD

Continuous Initiator Dosing

This video shows how CiD can improve your PVC production process. Do you want to be next?

PVC production process

What is CiD?

Continuous Initiator Dosing (CiD) is a revolutionary concept which increases your PVC production capacity by 20-40% while making your process intrinsically safer. In addition to improving your product consistency and quality, CiD can simultaneously reduce your costs. CiD has already been implemented successfully at several production locations around the world.

How does it work?

In traditional PVC production, in the first step of the process, the reactor is loaded with the raw material VCM and water. Then the total amount of organic peroxides needed for the polymerization is added. The temperature is increased and the peroxides initiate the polymerization reaction. During the reaction, a lot of heat is produced and the capacity of the reactor is determined by the maximum cooling capacity.

With our officially licensed CiD, the heat production in the reactor is controlled by the dosing of the peroxide throughout the polymerization process. To achieve this, a control valve is installed and a special fast peroxide, Trigonox® 187, is used. Now the cooling capacity is optimized and the batch time is reduced by 20-40%, increasing the overall capacity. In addition, the reaction can be stopped and restarted any time by simply interrupting or restarting the peroxide dosing.

How can I implement CiD at my PVC production location?

For CiD, a dedicated storage tank, process control system and a few control valves need to be installed. To ensure an easy and riskless implementation, we partner with our customers to implement our technology by installing a CiD demo unit for a plant trial. During the entire process we provide full technical, safety and engineering support on site.

If you would like to know more about our unique CiD offering, please contact your local AkzoNobel representative.