Method for manufacturing hydrorefining catalyst, and metal recovery method

a hydrorefining catalyst and metal recovery technology, applied in the direction of catalyst activation/preparation, metal/metal-oxide/metal-hydroxide catalyst, physical/chemical process catalyst, etc., can solve the problem of reducing the activity of the catalyst obtained by a conventional recycling method, and affecting the mechanical strength of the catalyst. , to achieve the effect of excellent mechanical strength

Inactive Publication Date: 2006-11-16
KOYAMA HIROKI +3
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Benefits of technology

[0017] The hydrogenation active metal of the hydrorefining catalyst of the present invention can include at least one of molybdenum ...

Problems solved by technology

This degradation is particularly pronounced when the hydrocarbon oil is a heavy oil.
Still, the activity of a catalyst obtained by a conventional recycling method is not as high as that of a new catalyst.
Also, the mechanical strength is diminished by...

Method used

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  • Method for manufacturing hydrorefining catalyst, and metal recovery method
  • Method for manufacturing hydrorefining catalyst, and metal recovery method

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examples

[0049] The present invention will now be described through examples, but the present invention should not be construed as being limited by these examples.

Desulfurization Catalyst

[0050] Pseudo-boehmite powder was kneaded and formed into the form of cylinders ( 1 / 12 inch) and quadrilobe columns ( 1 / 22 inch). These were each calcined for 1 hour at 600° C. to produce γ-alumina carriers, which were impregnated in an ammonium molybdate aqueous solution and a nickel nitrate aqueous solution, respectively, and then dried for 20 hours at 130° C., after which these products were calcined for 0.5 hour at 450° C. to obtain two types of desulfurization catalyst of different shapes. Table 1 lists the composition and properties of the resulting desulfurization catalyst comprising 1 / 12-inch cylinders (hereinafter referred to as the cylindrical desulfurization catalyst) and the desulfurization catalyst comprising 1 / 22-inch quadrilobe columns (hereinafter referred to as the quadrilobe desulfurizat...

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Abstract

A heavy oil is hydrorefined using a hydrorefining catalyst. A spent hydrorefining catalyst whose activity has decreased is heat treated (S1) and pulverized to obtained a regenerated powder (S2). This regenerated powder is fractionated according to its metal content (S3), formed (S6), dried (S7), and calcined (S7) to manufacture a regenerated catalyst whose volume of pores with a diameter of 50 to 2000 nm is at least 0.2 ml/g, and whose volume of pores with a diameter over 2000 nm is no more than 0.1 mL/g. Using this regenerated catalyst, a heavy oil containing at least 45 wt ppm vanadium and nickel as combined metal elements is hydrodemetalized, and the vanadium and nickel are recovered from the used regenerated catalyst (SS1). Through hydrorefining, the metal components are recovered more efficiently, and the spent catalyst can be reused to manufacture a regenerated catalyst that exhibits high reaction activity.

Description

CROSS-REFERENCE [0001] This application is a Divisional Application of U.S. application Ser. No. 10 / 310,903 filed on Dec. 6, 2002, which is a Continuation Application of International Application No. PCT / JP01 / 04802 which was filed on Jun. 7, 2001 claiming the conventional priority of Japanese patent Applications No. 2000-171427 filed on Jun. 8, 2000 and No. 2000-218139 filed on Jul. 19, 2000.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] This invention relates to a method for manufacturing a regenerated catalyst using a spent catalyst that has been used in the hydrorefining of a petroleum distillate and for reusing the regenerated catalyst. It also relates to a method with which the vanadium and other metals contained in a heavy oil are recovered by hydrorefining. [0004] 2. Description of the Related Art [0005] A hydrorefining catalyst is generally manufactured by supporting molybdenum and other such hydrogenation active metal components on a porous carrier such...

Claims

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Application Information

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IPC IPC(8): B01J23/00B01J23/85B01J23/887B01J23/94B01J35/02B01J35/10B01J37/00C10G45/04C10G45/08C22B7/00C22B34/22
CPCB01J23/85B01J23/8877B01J23/94B01J35/023B01J35/10B01J35/108C22B34/225B01J37/0036C10G45/04C10G45/08C22B7/009C22B34/22B01J37/0009Y02P10/20
Inventor KOYAMA, HIROKISAITO, TORUIWATA, YOSHIKINAKAOKA, CHIKANORI
Owner KOYAMA HIROKI
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