메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류
인문학
인문학 일반 역사학 철학 종교학 어문학 기타 인문학
사회과학
사회과학 일반 경영학 관광학 교육학 군사학 문헌정보학 법학 사회학 신문방송학 심리과학 정치외교학 지리학 행정학 경제학 무역학 인류학 기타 사회과학
자연과학
자연과학 일반 물리학 생물학 생활과학 수학·통계학 천문학 지구과학 화학 기타 자연과학
공학
공학 일반 건축공학 기계공학 산업공학 재료·에너지공학 전기전자공학 조선해양공학 화학공학 컴퓨터학 기타공학
의약학
의학 일반 간호학 수의학 약학 한의학 기초의학 임상의학 기타 의약학
농수해양학
농수해양학 일반 농학 수산학 식품과학 임학 축산학 해상운송학 기타 농수해양학
예술체육학
예술 일반 디자인 미술 미용 사진 음악학 의상 체육 공연매체예술 기타 예술체육학
복합학
학제간연구 과학기술학 뇌인지과학 기술정책 기타 복합학

ENG

추천
검색
질문

논문 기본 정보

자료유형
학술저널
저자정보
Daekun Kim (University of Tennessee) Jeong-Gil Nam (Mokpo Maritime University)
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제45권 제1호
발행연도
2021.2
수록면
10 - 16 (7page)
DOI
10.5916/jamet.2021.45.1.10

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색
질문

초록· 키워드

오류제보하기
Regulations on environmental pollution caused by automobile exhaust gases are becoming increasingly stringent worldwide. Additionally, according to the most recent United States Environmental Protection Agency standard, Tier 3 regulations, the durability requirements for after-treatment have increased from 120,000 to 150,000 miles. The main causes of shortening the life of the catalyst are the sintering of precious metals by high temperature and poisoning by the strong adsorption of impurities. In particular, sulfur, phosphorus, and zinc contained in lubricant additives are the main causes of catalyst life reduction. It is known that the degradation of catalyst performance due to sulfur poisoning is reversible through a high-temperature desulfation process. However, the catalysts exposed to a high temperature in this process, especially three-way catalysts (TWCs) containing oxygen storage capacity (OSC) materials, adversely affect the catalyst performance due to CeO₂ agglomeration and sintering of precious metal particles. Therefore, the purpose of this study was to investigate the effect of the high-temperature desulfation process on the performance of Pd-based TWCs. A gasoline engine bench called Genset was used to perform accelerated thermal aging and lubricant additive poisoning of the TWCs for 24 h at a catalyst temperature of 700°C. Once the accelerated thermal aging and poisoning TWC samples were obtained, the desulfation process at high temperature and evaluations of TWC performance (temperature sweep and OSC) were carried out in a bench flow reactor using simulated engine exhaust gases. For the accelerated thermal aging TWC sample, the conversion of NO, CO, C3H6, and C3H8 after desulfation was similar to that before desulfation, but the OSC decreased by up to 22%. However, the accelerated poisoning TWC sample was found to have improved the conversion of NO, CO, C₃H<SUB>6</SUB>, and C₃H<SUB>8</SUB> and the performance of OSC after desulfation.
#Pd-based three-way catalyst #Lubricant additive #Desulfation #Oxygen storage capacity

목차

Abstract
1. Introduction
2. Experimental Apparatus and Procedure
3. Results and Discussion
4. Conclusions and Recommendation
References

참고문헌 (19)

참고문헌 신청
M. V. Twigg / 2007 / Progress and future challenges in controlling automotive exhaust gas emissions / Applied Catalysis B:Environmental 70(1-4):2~15 google schola J. Kašpar / 1999 / Use of CeO2-based oxides in the three-way catalysis / Catalysis Today 50(2):285~298 google schola P. Granger / 2001 / Investigation of the intrinsic activity of ZrxCe1-xO2 mixed oxides in the CO+ NO reactions : Influence of Pd incorporation / Topics in Catalysis 16:89~94 google schola R. M. Heck / 2010 / Catalytic air pollution control : Commercial technology / Platinum Metals Review 54(3):180~183 google schola Y. Y. Yao / 1984 / The oxidation of CO and hydrocarbons over noble metal catalysts / Journal of Catalysis 87(1):152~162 google schola

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

이 논문과 함께 이용한 논문

저공해 자동차용 이중와쉬코트 삼원촉매의 정화특성
정종우 ,  윤성식 ,  최병철 외 2명 한국자동차공학회 춘 추계 학술대회 논문집 2002 .05
[ISMT2021] Effect of parameters on penetration properties in butt welding of super duplex stainless steel using PAW-TIG heat source
Jun-Sub Yeo ,  Moo-Keun Song ,  Jong-Do Kim Journal of Advanced Marine Engineering and Technology (JAMET) 2022 .02
Basic study on the design of a power system for characteristic analysis of battery lifetime
Jin-Woo Han ,  Tae-Hyeon Song ,  Hyun-Suk Yang 외 1명 Journal of Advanced Marine Engineering and Technology (JAMET) 2020 .10

최근 본 자료

전체보기

댓글(0)

0