The 8th Conference of Emerging Energy and Process technology (CONCEPT 2019) is an annual event organized by Institute of Future Energy of Universiti Teknologi Malaysia. The conference was successfully held in Kuala Lumpur, Malaysia in November 27-28, 2019. CONCEPT 2019 is an Energy and Chemical Process-based conference focus on three themes; Sustainable Energy, Process System, and Safety. The overarching objectives of this conference to stimulate a broader discussion of current technological innovation and invention and identify potential collaborative research among industry experts, academicians, or students. The conference also provides great opportunities for participants to meet experts, exchange ideas, share experiences and establish the ground for future research and business relations with local and global partners. CONCEPT 2019 Proceedings contains 42 selected papers that have been accepted for presentation in the conference. All articles had been reviewed by the researchers and experts in the field appointed by the conference technical committee. The guest editor would like to sincerely thank the publication team for their efforts in preparing this proceeding. Finally, the publication committee wishes to thank all the authors for their contributions to CONCEPT 2019 proceedings and we look forward to welcoming more of your contributions to the CONCEPT 2020. List of Conference Photographs are available in this pdf.