**Preface to "Green Technologies for Production Processes"**

Numerous pathways and narratives have been developed to shed light on how society could transform its production systems in line with the aspirational targets of the Paris Agreement and Sustainable Development Goals. Green technologies, as an emerging technical innovation, are necessary for driving the production system transformation that is called for global sustainability. Key potential benefits of green technology are that they might substantially reduce the cost of mitigating CO<sup>2</sup> emissions and improve the environment performance with the development of more affordable, better-performing technologies.

The scope of the Processes journal covers research in chemistry, biology, materials, and allied engineering fields. Thus, in this book, we invite articles focused on research regarding the chemistry, biology, materials, and allied engineering firms (manufacturing processes, iron and steel production processes, mining processes, power generation processes, and so on).

This book focuses on original research works about Green Technologies for Production Processes, including discrete production processes and process production processes, from various aspects that tackle product, process, and system issues in production. The aim is to report the state-of-the-art on relevant research topics and highlight the barriers, challenges, and opportunities we are facing. This book involves following topics:


**Wei Cai, Zhigang Jiang, Conghu Liu, Yan Wang** *Editors*
