High activity catalyst for hydrogenation refining of Vaseline and preparation method and uses thereof

Abstract

The present invention discloses one kind of high activity vaseline hydrorefining catalyst and its preparation process and use. The catalyst has carrier of silicon-containing alumina, active components WO3 and NiO and co-catalyst component P2O5, and contains WO3 25-35 wt%, NiO 2.0-7.0 wt%, P2O5 2.0-5.5 wt% accounting in P and SiO2 1-10 wt% except alumina. The preparation process of the catalyst includes the following steps: preparing catalyst carrier; dissolving W compound, Ni compound and P compound in deionized water to prepare co-immersing liquid; soaking the carrier in the co-immersing liquid; and drying and roasting the soaked carrier. The catalyst has high hydrorefining activity, and may be used in hydrorefining at relatively low temperature and proper pressure.

Description

technical field

[0001] The invention relates to a Vaseline hydrorefining catalyst as well as its preparation method and application. Background technique

[0002] The main chemical composition of Vaseline is isoparaffins with 30 to 60 carbon atoms, which is widely used. Vaseline used in medicine and cosmetics has strict restrictions on the content of impurities, especially sulfur- and nitrogen-containing compounds and thickeners. Ring aromatics. The raw material for preparing vaseline is blended from vacuum distillate oil and vacuum residue oil after solvent extraction and deasphalting, which contains sulfur, nitrogen, oxygen and non-hydrocarbon compounds, and also contains condensed ring aromatic hydrocarbons. Therefore, the preparation of Vaseline includes two steps of blending and refining.

[0003] Hydrofining is an advanced process for petroleum jelly refining. Since the raw material of petroleum jelly comes from heavy oil, sulfur, nitrogen, and oxygen mostly exist i...

Examples

example 1

[0024] Mix macroporous aluminum hydroxide dry powder (obtained through the above selection), acetic acid as a peptizer, scallop powder as an extrusion aid and deionized water according to the formula in Table 1, then knead, and extrude into strips, which are shaped like clover , then dried at 110°C for 3h, and calcined at 550°C for 3h to make the catalyst carrier S of the present invention 1 , the main physicochemical properties are shown in Table 2, and the catalyst carrier S1 was subjected to N 2 The shape of the hysteresis loop formed by its isotherm after the adsorption / desorption test is shown in Figure 1, and the shape of the hysteresis loop is similar to that of the B-type hysteresis loop.

example 2

[0026] The macroporous aluminum hydroxide dry powder selected above (obtained through the above selection), acetic acid as peptizer, scallop powder and deionized water as extrusion aid are mixed according to the formula in Table 1, then kneaded, and extruded into strips. It is clover-shaped, then dried at 100°C for 4h, and calcined at 500°C for 4h to make the catalyst carrier S of the present invention 2 , the main physicochemical properties are shown in Table 2, and the catalyst carrier S1 was subjected to N 2 After the adsorption / desorption test, the shape of the hysteresis loop formed by its isotherm is similar to that of accompanying drawing 1.

example 3

[0028] The macroporous aluminum hydroxide dry powder selected above (obtained through the above selection), acetic acid as peptizer, scallop powder and deionized water as extrusion aid are mixed according to the formula in Table 1, then kneaded, and extruded into strips. It is clover-shaped, then dried at 130°C for 2h, and calcined at 550°C for 2h to make the catalyst carrier S of the present invention 3 , the main physicochemical properties are shown in Table 2, and the catalyst carrier S1 was subjected to N 2 After the adsorption / desorption test, the shape of the hysteresis loop formed by its isotherm is similar to that of accompanying drawing 1.

[0029] 3. Preparation of co-immersion solution

[0030] Add WO to 120ml deionized water 3 65g of ammonium metatungstate with a total content of 82.0%, 35g of nickel nitrate and 10ml of orthophosphoric acid were stirred and dissolved and filtered to obtain a co-immersion solution containing W, Ni, and P elements, and deionized wa...

technical field

[0001] The invention relates to a Vaseline hydrorefining catalyst as well as its preparation method and application. Background technique

[0002] The main chemical composition of Vaseline is isoparaffins with 30 to 60 carbon atoms, which is widely used. Vaseline used in medicine and cosmetics has strict restrictions on the content of impurities, especially sulfur- and nitrogen-containing compounds and thickeners. Ring aromatics. The raw material for preparing vaseline is blended from vacuum distillate oil and vacuum residue oil after solvent extraction and deasphalting, which contains sulfur, nitrogen, oxygen and non-hydrocarbon compounds, and also contains condensed ring aromatic hydrocarbons. Therefore, the preparation of Vaseline includes two steps of blending and refining.

[0003] Hydrofining is an advanced process for petroleum jelly refining. Since the raw material of petroleum jelly comes from heavy oil, sulfur, nitrogen, and oxygen mostly exist i...

Examples

example 1

[0024] Mix macroporous aluminum hydroxide dry powder (obtained through the above selection), acetic acid as a peptizer, scallop powder as an extrusion aid and deionized water according to the formula in Table 1, then knead, and extrude into strips, which are shaped like clover , then dried at 110°C for 3h, and calcined at 550°C for 3h to make the catalyst carrier S of the present invention 1 , the main physicochemical properties are shown in Table 2, and the catalyst carrier S1 was subjected to N 2 The shape of the hysteresis loop formed by its isotherm after the adsorption / desorption test is shown in Figure 1, and the shape of the hysteresis loop is similar to that of the B-type hysteresis loop.

example 2

[0026] The macroporous aluminum hydroxide dry powder selected above (obtained through the above selection), acetic acid as peptizer, scallop powder and deionized water as extrusion aid are mixed according to the formula in Table 1, then kneaded, and extruded into strips. It is clover-shaped, then dried at 100°C for 4h, and calcined at 500°C for 4h to make the catalyst carrier S of the present invention 2 , the main physicochemical properties are shown in Table 2, and the catalyst carrier S1 was subjected to N 2 After the adsorption / desorption test, the shape of the hysteresis loop formed by its isotherm is similar to that of accompanying drawing 1.

example 3

[0028] The macroporous aluminum hydroxide dry powder selected above (obtained through the above selection), acetic acid as peptizer, scallop powder and deionized water as extrusion aid are mixed according to the formula in Table 1, then kneaded, and extruded into strips. It is clover-shaped, then dried at 130°C for 2h, and calcined at 550°C for 2h to make the catalyst carrier S of the present invention 3 , the main physicochemical properties are shown in Table 2, and the catalyst carrier S1 was subjected to N 2 After the adsorption / desorption test, the shape of the hysteresis loop formed by its isotherm is similar to that of accompanying drawing 1.

[0029] 3. Preparation of co-immersion solution

[0030] Add WO to 120ml deionized water 3 65g of ammonium metatungstate with a total content of 82.0%, 35g of nickel nitrate and 10ml of orthophosphoric acid were stirred and dissolved and filtered to obtain a co-immersion solution containing W, Ni, and P elements, and deionized wa...

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