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Siddiqui, Muhammad Zain,Park, Young-Kwon,Kang, Yejin,Watanabe, Atsushi,Kim, Seungdo,Kim, Young-Min Elsevier 2019 Journal of Cleaner Production Vol.229 No.-
<P><B>Abstract</B></P> <P>Thermal and catalytic pyrolysis of aluminum plastic laminate over zeolite catalysts were performed to produce high quality oil. Thermogravimetric analysis of aluminum plastic laminate indicated that the decomposition kinetics of aluminum plastic laminate were changed by interactions between the polymer components during the thermogravimetric analysis of aluminum plastic laminate. The effects of aluminum foil on the aluminum plastic laminate decomposition kinetics were negligible. The catalytic pyrolysis of aluminum plastic laminate over the acid catalysts using tandem-micro reactor-gas chromatography/mass spectrometry produced large amounts of aromatics due to the properties of the main polymers, polyethylene and poly (ethylene terephthalate), in aluminum plastic laminate. Among three catalysts, HZSM-5 (SiO<SUB>2</SUB>/Al<SUB>2</SUB>O<SUB>3</SUB>, 23), HY(30), and Al-MCM-41 (20), HZSM-5 (23) had the highest efficiency on aromatics production followed by HY(30) and Al-MCM-41 (20). Co-feeding aluminum plastic laminate to the catalytic pyrolysis of paper over HZSM-5 (23) and HY(30) was also effective on aromatics production, highlighting the potential use of aluminum plastic laminate to enhance the synergistic aromatics formation during the catalytic pyrolysis of biomass.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Interaction between polymers changed kinetic behavior of aluminum plastic laminate. </LI> <LI> Catalytic pyrolysis of aluminum plastic laminate produced aromatics efficiently. </LI> <LI> HZSM-5 was the most effective catalyst on aromatics formation. </LI> <LI> Co-feeding aluminum plastic laminate and paper produced additional aromatics. </LI> </UL> </P>
귤 껍질과 고밀도폴리에틸렌(HDPE)의 혼합촉매열분해를 통한 방향족탄화수소의 생산
박영권 ( Young-kwon Park ),( Muhammad Zain Siddiqui ),강예진 ( Yejin Kang ),( Atsushi Watanabe ),이형원 ( Hyung Won Lee ),정상재 ( Sang Jae Jeong ),김승도 ( Seungdo Kim ),김영민 ( Young-min Kim ) 한국폐기물자원순환학회(구 한국폐기물학회) 2019 한국폐기물자원순환학회 심포지움 Vol.2019 No.1
고밀도폴리에틸렌을 귤껍질의 촉매열분해에 혼합열분해 시킨다. 사용되는 촉매는 HY와 HZSM-5로 각각 다른 기공과 산 세기 특성을 가지고 있다. 귤껍질은 비촉매 열분해와 촉매열분해의 질량분석결과(TG Analysis) 다른 점이 없었지만 고밀도폴리에틸렌은 촉매열분해를 했을 때 촉매효과로 분해온도가 HY의 경우 465℃에서 379℃까지 떨어졌고 HZSM-5의 경우 393℃까지 떨어졌다. 고밀도폴리에틸렌을 귤껍질과 혼합촉매열분해하면 분해온도가 HY의 경우 402℃까지 올랐고 HZSM-5의 경우 408℃까지 올랐다. 귤껍질과 고밀도폴리에틸렌의 Pyrolyzer-GC/MS의 결과 넓은 탄소범위를 가지는 산화물과 지방족탄화수소를 HY나 HZSM-5 촉매를 사용하여 효과적으로 방향족 탄화수소로 변형시켰다. HY를 이용한 귤껍질과 고밀도폴리에틸렌의 혼합촉매열분해에서 HZSM-5보다 큰 기공과 많은 양의 산점으로 더 많은 반응물을 생성할 수 있지만 HZSM-5를 이용한 결과 HZSM-5의 특징인 높은 산도와 형상선택성으로 HY보다 더 많은 방향족화합물을 생성 할 수 있다. 귤껍질과 고밀도폴리에틸렌의 혼합촉매열분해로 생성되는 방향족화합물은 예상했던 이론값보다 더 많은 양이 생성되었다. 이것은 귤껍질과 고밀도폴리에틸렌의 혼합촉매열분해를 했을 때 시너지효과가 있음을 시사한다. 사사: 이 논문은 2019년도 환경부의 폐자원에너지화특성화대학원사업(YL-WE-17-001)의 지원을 받아 수행되었습니다.
Non-isothermal pyrolysis properties of <i>Laminaria japonica</i>
Han, Tae Uk,Kim, Young-Min,Siddiqui, Muhammad Zain,Lee, Taeho,Watanabe, Atsushi,Teramae, Norio,Kim, Seungdo,Park, Young-Kwon Elsevier 2018 JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS Vol.130 No.-
<P><B>Abstract</B></P> <P>The pyrolysis of <I>Laminaria</I> (<I>L.</I>) <I>japonica</I> was examined using non-isothermal analytical pyrolysis techniques, such as thermogravimetric (TG) and multi-shot pyrolyzer (Py)-gas chromatography/mass spectrometry (GC/MS) analysis. TG, derivative TG curves, and the apparent activation energy suggested that the decomposition of <I>L. japonica</I> has three thermal decomposition stages. The average mass spectra and multi-shot Py-GC/MS chromatograms obtained at each thermal decomposition stage confirmed the main decomposition reaction at each thermal zone. At the first stage, the decomposition of lipids and carbohydrates was initiated. The main decomposition of carbohydrates occurred at the second stage. At the final stage, proteins were decomposed and char intermediates were stabilized by supplying a higher temperature. A low activation energy at the second stage and the presence of metals in <I>L. japonica</I> suggests that during the non-isothermal pyrolysis of <I>L. japonica</I>, the catalytic effect is enhanced and involves the decomposition of carbohydrates.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Pyrolysis reaction pathway of <I>L. Japonica</I> was investigated using TGA and Py-GC/MS. </LI> <LI> Pyrolysis of <I>L. Japonica</I> was accounted for three independent decomposition reactions of biomass components. </LI> <LI> Low activation energy was achieved on the pyrolysis of <I>L. japonica</I> by the presence of inorganics. </LI> </UL> </P>