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Received April 6, 2001
Accepted June 7, 2001
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Hydrogenation of CO2 over Fe-K Based Catalysts in a Fixed Bed Reactor at Elevated Pressure
Environment and Resource Team, KRICT, P.O.Box 107 Yusong, Daejeon 305-600, Korea 1Dept. of Chem. Eng., Chungnam National University, Daejeon 305-764, Korea
mjchoi@pado.krict.re.kr
Korean Journal of Chemical Engineering, September 2001, 18(5), 646-651(6), 10.1007/BF02706381
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Abstract
Catalytic hydrogenation of CO2 to produce hydrocarbons was conducted in a fixed bed reactor (1.6 cm-ID×60 cm-High). Fe-K based catalysts (KRICAT-A, B) were used for more than 850 hours to maintain CO2 conversion level up to 30 C-mol% in the fixed bed micro-reactor. Effects of operating variables on the CO2 conversion, hydrocarbon yield and its selectivity were investigated. The CO2 conversion and total hydrocarbon yield increased with increasing reaction temperature (250-325 ℃), pressure (0.5-2.5MPa) and H2/CO2 mol ratio (2-5); however, they decreased with increasing space velocity (1,000-4,000 ml/g(cat.)hr) in the reactor. The selectivities of liquid products increased with increasing reaction pressure; however, they decreased with increasing temperature, space velocity and H2/CO2 ratio. From the results of an experimental study, optimum operating conditions for the maximum yield of olefinic liquid products were found as T=315 ℃, P=1.5MPa, SV=2,000 ml/g(cat.)hr and H2/CO2 ratio=3 in the fixed bed reactor within these experimental conditions.
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References
Choi PH, Jun KW, Lee SJ, Choi MJ, Lee KW, Catal. Lett., 40(1-2), 115 (1996)
Dry ME, Appl. Catal. A: Gen., 138(2), 319 (1996)
Dry ME, CHEMTECH, DEC, 744 (1982)
Elsenacher K, Adesima AA, Korean J. Chem. Eng., 17(1), 71 (2000)
Fujimoto K, Omata K, Nozaki O, Han Y, Energy Conv. Manag., 33, 529 (1992)
Inui T, Hara H, Takeguchi T, Ichino K, Kim JB, Iwamoto S, Pu SB, Energy Conv. Manag., 38, S385 (1997)
Lee JS, Moon KI, Lee SH, Lee SY, Kim YG, Catal. Lett., 34(1-2), 93 (1995)
Nam SS, Kim H, Kishan G, Lee MW, Choi MJ, Lee KW, Appl. Organometal. Chem., 14, 794 (2000)
Nam SS, Lee SJ, Kim H, Jun KW, Choi MJ, Energy Conv. Manag., 38, S397 (1997)
Park YK, Park KC, Ihm SK, Catal. Today, 44(1-4), 165 (1998)
Riedel T, Claeys M, Schulz H, Schaub G, Nam SS, Jun KW, Choi MJ, Kishan G, Lee KW, Appl. Catal. A: Gen., 186(1-2), 201 (1999)
Riedel T, Schaub G, Jun KW, Lee KW, Ind. Eng. Chem. Res., 40(5), 1355 (2001)
Satterfield CN, Huff GA, Stenger HG, Carter JL, Madon RJ, Ind. Eng. Chem. Fundam., 24, 450 (1985)
Shen WJ, Jun KW, Choi HS, Lee KW, Korean J. Chem. Eng., 17(2), 210 (2000)
Steynberg AP, Espinoza RL, Jager B, Vosloo AC, Appl. Catal. A: Gen., 186(1-2), 41 (1999)
Yan SR, Jun KW, Hong JS, Choi MJ, Lee KW, Appl. Catal., 194, 63 (2000)
Yan SR, Jun KW, Hong JS, Lee SB, Choi MI, Lee KW, Korean J. Chem. Eng., 16(3), 357 (1999)
Dry ME, Appl. Catal. A: Gen., 138(2), 319 (1996)
Dry ME, CHEMTECH, DEC, 744 (1982)
Elsenacher K, Adesima AA, Korean J. Chem. Eng., 17(1), 71 (2000)
Fujimoto K, Omata K, Nozaki O, Han Y, Energy Conv. Manag., 33, 529 (1992)
Inui T, Hara H, Takeguchi T, Ichino K, Kim JB, Iwamoto S, Pu SB, Energy Conv. Manag., 38, S385 (1997)
Lee JS, Moon KI, Lee SH, Lee SY, Kim YG, Catal. Lett., 34(1-2), 93 (1995)
Nam SS, Kim H, Kishan G, Lee MW, Choi MJ, Lee KW, Appl. Organometal. Chem., 14, 794 (2000)
Nam SS, Lee SJ, Kim H, Jun KW, Choi MJ, Energy Conv. Manag., 38, S397 (1997)
Park YK, Park KC, Ihm SK, Catal. Today, 44(1-4), 165 (1998)
Riedel T, Claeys M, Schulz H, Schaub G, Nam SS, Jun KW, Choi MJ, Kishan G, Lee KW, Appl. Catal. A: Gen., 186(1-2), 201 (1999)
Riedel T, Schaub G, Jun KW, Lee KW, Ind. Eng. Chem. Res., 40(5), 1355 (2001)
Satterfield CN, Huff GA, Stenger HG, Carter JL, Madon RJ, Ind. Eng. Chem. Fundam., 24, 450 (1985)
Shen WJ, Jun KW, Choi HS, Lee KW, Korean J. Chem. Eng., 17(2), 210 (2000)
Steynberg AP, Espinoza RL, Jager B, Vosloo AC, Appl. Catal. A: Gen., 186(1-2), 41 (1999)
Yan SR, Jun KW, Hong JS, Choi MJ, Lee KW, Appl. Catal., 194, 63 (2000)
Yan SR, Jun KW, Hong JS, Lee SB, Choi MI, Lee KW, Korean J. Chem. Eng., 16(3), 357 (1999)