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Received April 20, 2007
Accepted April 28, 2007
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2-부텐의 수첨이성화반응 및 증류공정을 통한 고순도 1-부텐의 제조
Synthesis of Pure Butene-1 through Hydro-isomerization of Butene-2 and Distillation
동양대학교 생명화학공학과, 750-711 경북 영주시 풍기읍 교촌동 1 1공주대학교 화학공학부, 314-701 충남 공주시 신관동 182 2SK(주) 대덕기술원, 305-712 대전시 유성구 원촌동 140-1
Department of Chemical Engineering, Dong Yang University, 1, Gyochon-dong, Punggi-eup, Yeongju, Gyeongbuk 750-711, Korea 1Department of Chemical Engineering, Kongju National University, 182, Shinkwan-dong, Gongju, Chungnam 314-701, Korea 2Chemicals R&D Center, SK Corporation, 140-1, Wonchon-dong, Yuseong-gu, Daejeon 305-712, Korea
jkjeon@kongju.ac.kr
Korean Chemical Engineering Research, August 2007, 45(4), 351-355(5), NONE Epub 28 August 2007
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Abstract
C4 잔사유에 포함되어 있는 2-부텐을 부가가치가 더 높은 1-부텐으로 위치 이성화하는 공정의 개발이 필요하다. 본 연구에서는 2-부텐을 1-부텐으로 전환하기 위하여 상업용 Pd/alumina 촉매를 사용하여 수첨이성화반응 실험을 수행하였다. 상업용 Pd 촉매인 LD-265 촉매가 같은 반응조건에서 다른 상업용 촉매들보다 1-부텐 수율이 높았다. 1-부텐의 최적반응조건은 반응온도 75 ℃, 반응압력 150 psig, 2-부텐의 유량 48 cc/h, H2 유량 48 cc/h이었으며, 이 조건하에서 1-부텐의 수율이 5.3%로 최대임을 알 수 있었다. 수첨이성화 반응기와 증류탑으로 구성된 공정의 모사를 수행하였다. 순도 99.0% 이상의 1-부텐을 얻기 위해서 단 효율이 78% 일 때 환류비가 120이고 171 단의 증류탑이 필요한 것으로 나타났다.
It is necessary to convert butene-2 into butene-1 with higher added-values through positional isomerization. In this study, hydro-isomerization of butene-2 with hydrogen over Pd/alumina catalysts was investigated in a fixed bed reactor. The yield of butene-1 over Ld-265 catalyst was higher than that over other catalysts. The yield of butene-1 was highest (5.3%) under the conditions of reaction temperature of 75 ℃, reaction pressure of 150 psig, 2-butene flow rate of 48 cc/h and hydrogen flow rate of 3 cc/min. We conducted simulation for the process composed of a hydroisomerization reactor and a distillation tower. In the case of 78% of tray efficiency, we obtained over 99% pure butene-1 through a distillation tower with 171 steps (R=120).
Keywords
References
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Ancillotti F, Forlani O, Jover B, Resofski G, Gati G, Appl. Catal., 67(1), 237 (1990)
Forlani F, Ancillotti O, Jover B, Resofski G, Gati G, Appl. Catal., 67(1), 249 (1990)
Hsing HH, U.S. Patent No. 5,043,523 (1991)
Moronta A, Luengo J, Ramirez Y, Quinonez J, Gonzalez E, Sanchez J, Appl. Clay Sci., 29(2), 117 (2005)
Powers DH, US Patent No. 6,768,038 (2004)
Seo G, Catalysis Surveys from Asia, 9(3), 139 (2005)
Arganbright RP, US Patent No. 5,087,780 (1992)
Dorbon M, Hugues F, Viltard J, Didillon B, Forestiere A, US Patent No. 6,242,662 (2001)
Bradford JR, Drickamer HG, AIChE J., 39, 319 (1943)
