To pursue sustainable technology as a key responsibility for chemical engineers, we have presented an infrastructure for integrating element technologies of life cycle engineering (LCE). By that, we can evaluate. and make a rational decision on LCE in chemical industries. With this point of view, we attempt to integrate a product life cycle model developed earlier together with various data bases, simulators and applications on G2 that is known as a development environment of intelligent systems. We also aim at facilitating a collaborative research accessible from global horizon through the Internet. Finally, through implementation associated with the management of plastic wastes, we have shown that more elaborate concerns on LCE is possible through our idea.