production plant

Lonza’s Benzinspalt-Anlage (BSA) in Visp (CH) is often referred to as our Naphtha cracker plant. Within literally a split second, light naphtha or liquefied petroleum is split or cracked in the reaction chamber at a temperature of -200 to +3000 °C, hence the name "cracker." Subsequently, the raw gas is compressed and separated into individual components.

The history of the cracker starts in the late 1950s, where it was decided to use thermal cracking of gasoline as a new raw material for production. In the fall of 1964, the plant was put into operation.

Today the cracker is the basis of the entire compound production in Visp.  It supports Lonza end products such as Niacin (Vitamin B3), Metaldehyde (slug pellets) or various intermediates used in the agricultural, aircraft or pharmaceutical industries. In addition, the air separation plant associated with the cracker supplies the entire facility with nitrogen and oxygen.

Lonza`s cracker in Visp is the back bone of a comprehensive fully integrated chemical network.

Our product portfolio consists of Basic Chemicals used as key raw materials as well as ketene & diketene derivatves, HCN derivatives and  pyridine derivatives used as intermediates for many sophisticated applications.