Korean Journal of Chemical Engineering, Vol.19, No.4, 601-606, July, 2002
A Unique Way to Make Ultra Low Sulfur Diesel
E-mail:
SK Corporation has developed a new process, SK HDS Pretreatment process that enables the refiners to produce economically ultra-low-sulfur-diesel of below 10 ppm. This technology is based on the adsorptive removal of nitrogen containing compounds (NCC) from the feedstock to conventional hydrodesulfurization (HDS) units. The NCC is known to interfere with the activity of HDS catalysts. In the SK HDS Pretreatment Process, the feedstock to the HDS unit is pretreated, and 90% or more of NCC in the feedstock is removed, resulting in higher desulfurization in a conventional HDS unit. It was found that the degree of improvement in HDS is proportional to the degree of NCC removal. SK HDS Pretreatment Process is a cost-effective method for refineries to choose for 10 ppm ULSD production.
Keywords:Ultra Low Sulfur Diesel (ULSD);Pretreatment;Hydrodesulfurization;Nitrogen Containing Compounds (NCC)
- Energy Information Administration, Report No. SR/OIAF/2002-01, May (2001)
- Greenwood G, Clean Fuel Conference 2001, San Antonio, U.S.A., Jan. 30-Feb. 1 (2001)
- Kim KL, Choi KS, Korean J. Chem. Eng., 5(2), 177 (1988)
- Kim MC, Kim KL, Korean J. Chem. Eng., 13(1), 1 (1996)
- Knudsen KG, Whitehurst DD, Zeuthen P, AIChE 2000 Spring National Meeting, Atlanta, GA, March 5-9 (2000)
- Kwak C, Moon SH, Korean J. Chem. Eng., 16(5), 608 (1999)
-
van Looij F, van der Laan P, Stork WHJ, DiCamillo DJ, Swain J, Appl. Catal. A: Gen., 170(1), 1 (1998)
- Min WS, Clean Fuel 2001 Conference, San Antonio, U.S.A., Jan. 28-Feb. 1 (2001)
- Min WS, Khang SY, Min DS, Ryu JW, You KS, Kim NJ, Kogan VM, Choi KI, The 4th European Congress on Catalysis, Rimini, Italy, September 5-10 (1999)
- Park HK, Kim DS, Kim KL, Korean J. Chem. Eng., 15(6), 625 (1998)
- Satterfield CN, Modell M, Mayer JF, AIChE J., 21, 1100 (1975)