In the world of computer aided process modelling, the potential of web-based technologies has still not been fully exploited. In particular in the scope of collaborative model development, the use of those technologies helps to solve some common problems. In this paper a new modelling environment based on a combination of MathML, XML and JAVA™ is presented that especially addresses the problems faced when it comes to sharing models as well for documentation as for execution purposes. The application is currently used in e-learning scenarios, in which students learn to model distillation column systems with the only use of their web-browser by drag and dropping human readable equations into subsystems of a given process.