Preface

Abstract

This volume contains selected papers presented at two symposia organized in conjunction with the TMS 2020 Annual Meeting & Exhibition in San Diego, California, USA: • Energy Technologies and CO2 Management (sponsored by the TMS Energy Committee) • Recycling of Secondary, Byproduct Materials and Energy (sponsored by the TMS Recycling and Environmental Technologies Committee) The papers in this volume intend to address the issues, intricacies, and the challenges relating to energy and environmental sciences. The Energy Technologies and CO2 Management Symposium was open to participants from both industry and academia and focused on energy efficient technologies including innovative ore beneficiation, smelting technologies, recycling, and waste heat recovery. Topics cover various technological aspects of sustainable energy ecosystems and processes that improve energy efficiency, reduce thermal emissions, and reduce carbon dioxide and other greenhouse emissions. Papers addressing renewable energy resources for metals and materials production, waste heat recovery and other industrial energy efficient technologies, new concepts or devices for energy generation and conversion, energy efficiency improvement in process engineering, sustainability and life cycle assessment of energy systems, as well as the thermodynamics and modeling for sustainable metallurgical processes are included. This volume also includes topics on CO2 sequestration and reduction in greenhouse gas emissions from process engineering, sustainable technologies in extractive metallurgy, as well as the materials processing and manufacturing industries with reduced energy consumption and CO2 emission. Contributions from all areas of non-nuclear and non-traditional energy sources, such as solar, wind, and biomass, are also included in this volume. The Recycling of Secondary, Byproduct Materials and Energy Symposium provided a forum for papers exploring the valorization of materials and their embodied energy including byproducts or coproducts from ferrous and non-ferrous industries, batteries, electronics, and other complex secondary materials. Although most recycling only involves mechanical and physical manipulation of matter, which typically require one to two orders of magnitude less energy than the chemical manipulation involved in primary production, recycling processes still require energy to operate, and they do not run emission-free. Recycling processes must be designed to deal with materials that are