Korean Journal of Life Cycle Assessment
The Korea Society for Life Cycle Assessment
Article

물질전과정평가(MLCA)를 통한 TiN 복합수소 분리막의 환경성 평가

김민겸1, 한정흠1, 이영환1, 손종태2, 홍태환1,
Min Gyeom Kim1, Jeong Heum Han1, Young Hwan Lee1, Jong Tae Son2, Tae Whan Hong1,
1한국교통대학교 화공신소재고분자공학부 신소재공학전공
2한국교통대학교 화공신소재고분자공학부 나노소재고분자공학전공
1Department of Materials Science and Engineering, Korea National University of Transportation
2Department of Nano Polymer Science & Engineering, Korea National University of Transportation
Corresponding author: 홍태환, 충북 충주시 대학로 50, 국립한국교통대학교 신소재공학과 나노재료연구실, Tel: 043-841-5388, Fax: 043-841-5380, Email: twhong@ut.ac.kr

ⓒ Copyright 2018 The Korea Society for Life Cycle Assessment. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Published Online: Oct 02, 2018

Abatract

In this study, Material life cycle evaluation was performed to analyze the environmental impact characteristics of TiN-Zr membrane manufacturing process. The software of MLCA was Gabi. Through this, environmental impact assessment was performed for each process. Transition metal nitride have been researched extensively because of their properties. Among these, TiN has the most attention. TiN is a ceramic materials which possess the good combination of physical and chemical properties, such as high melting point, high hardness, and relatively low specific gravity, high wear resistance and high corrosion resistance. With these properties, TiN plays an important role in functional materials for application in separation hydrogen from fossil fuel. Precursor TiN was synthesized by sol-gel method and zirconium was coated by ball mill method. The metallurgical, physical and thermodynamic characteristics of the membranes were analyzed by using Scanning Electron Microscope (SEM), X-ray Diffraction (XRD), Gas Chromatograph System. As a result of characterization and normalization, environmental impacts were 94% in MAETP (Marine Aquatic Ecotoxicity), 2% FAETP (Freshwater Aquatic Ecotoxicity), 2% HTP (Human Toxicity Potential). TiN fabrication process appears to have a direct or indirect impact on the human body. It is believed that the greatest impact that HTP can have on human is the carcinogenic properties. This shows that electricity use has a great influence on ecosystem impact. TiN-Zr was analyzed in Eco-Indicator ‘99 (EI99) and CML 2001 methodology.

Keywords: 물질전과정평가; 티타늄 질화물; 지르코늄; 지르코늄 코발트; 수소분리막; 졸겔법