Title:
PROCESS FOR ADSORPTIVELY REMOVING TRACE METAL FROM HYDROCARBON FRACTION
Document Type and Number:
Japanese Patent JP3624671
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a process whereby a trace metal, especially mercury can be adsorptively removed from a hydrocarbon fraction at good efficiency irrespectively of the form of the contained mercury.
SOLUTION: A hydrocarbon fraction containing a trace metal, especially mercury is hydrotreated, and the hydrotreated distillate is brought into contact with a porous carbonaceous material. Especially, a light hydrocarbon fraction obtained by distilling the hydrotreated distillate and recovering the fraction cut at 100°C or below is brought into contact with a porous carbonaceous material, desirably particulate active carbon having a specific surface area of 100m2/g-2,500m2/g and satisfying the equation: (a)-(b)≤5% of the volume of pores with pore diameters of 50&angst or smaller (wherein (a)-(b) is the difference between the volume (a) of pores with pore diameters of 35.0-37.5&angst and the volume (b) of pores with pore diameters of 42.5-45.0&angst ). According to this process, the trace metal can be removed nearly completely for a long term irrespectively of the form of the trace metal.
Inventors:
Kazuyuki Fukuda
Akihisa Nagai
Kenji Ikushima
Tadahiko Murakami
Akihisa Nagai
Kenji Ikushima
Tadahiko Murakami
Application Number:
JP1808898A
Publication Date:
March 02, 2005
Filing Date:
January 13, 1998
Export Citation:
Assignee:
Taiyo Techno Service Co., Ltd.
International Classes:
B01D15/00; C10G7/00; C10G25/00; C10G45/04; C10G49/02; C10G67/06; (IPC1-7): C10G67/06; B01D15/00; C10G7/00; C10G25/00; C10G45/04; C10G49/02
Domestic Patent References:
| JP1231920A | ||||
| JP6207183A | ||||
| JP940971A |
Attorney, Agent or Firm:
Kohei Kubota