Refurbishment technology for polymer melt filters: a case study

Melt filtration systems are widely employed across polymer production industries. It is common for the filters used in such systems to be chemically cleaned and reinstalled for repeat process application. These “regenerable” filters can be characterised by their performance and reliability and their selection is a major issue, in terms of both plant economics and technical justification. This paper considers the factors surrounding the economics of filter cleaning together with a case study on recycling efficiency and filter failure modes.