JP2005246197A - Method for manufacturing molding of inorganic oxide - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a molding of an adsorbent for removing a sulfur compound, by which an inorganic oxide of a metal of group III or group IV of a periodic table such as cerium oxide can be molded even when the inorganic oxide is subjected to extrusion molding so that the desulfurizing performance of the molded inorganic oxide can be kept high. <P>SOLUTION: When the inorganic oxide of the metal of group III or group IV of the periodic table is molded, at least one compound of the metal selected from the group consisting of cerium, zirconium and titanium is added to the inorganic oxide as a binder, cellulose is added to the inorganic oxide as an auxiliary molding agent and the obtained mixture is molded. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for producing an inorganic oxide molded body, an inorganic oxide molded body obtained by the production method, and a sulfur compound removing adsorbent comprising the molded body.

In recent years, new energy technology has attracted attention due to environmental problems, and fuel cells are attracting attention as one of the new energy technologies. This fuel cell converts chemical energy into electrical energy by electrochemically reacting hydrogen and oxygen, and has a feature of high energy use efficiency. Alternatively, research into practical use is actively conducted for automobiles and the like.
For this fuel cell, types such as a phosphoric acid type, a molten carbonate type, a solid oxide type, and a solid polymer type are known depending on the type of electrolyte used. On the other hand, as a hydrogen source, liquefied natural gas mainly composed of methanol and methane, city gas mainly composed of this natural gas, synthetic liquid fuel using natural gas as a raw material, LPG, dimethyl ether, naphtha, kerosene, light oil The use of petroleum hydrocarbons such as

When producing hydrogen using these gaseous or liquid hydrocarbons, generally, there is a method of treating the hydrocarbons by partial oxidation reforming, autothermal reforming or steam reforming in the presence of a reforming catalyst. It is used.
When reforming hydrocarbon fuels such as LPG, city gas, and kerosene to produce hydrogen for fuel, the sulfur content in the fuel is reduced to 0.1 ppm or less in order to suppress poisoning of the reforming catalyst. Is required. Further, when propylene, butene, etc. are used as a raw material for petrochemical products, the sulfur content is required to be reduced to 0.1 ppm or less in order to prevent poisoning of the catalyst.
In the LPG, as a sulfur compound, dimethyl sulfide (DMS), t-butyl mercaptan (TBM), methyl ethyl sulfide, etc. added as an odorant in addition to methyl mercaptan and carbonyl sulfide (COS) are generally included. include. Recently, a plan to use dimethyl ether as a fuel is underway. Although this dimethyl ether itself does not contain a sulfur compound, the addition of the above odorant has been studied intentionally in order to prevent leakage.

Various adsorbents that adsorb and remove sulfur compounds in hydrocarbon fuels such as LPG and city gas are known. However, some of these adsorbents exhibit high desulfurization performance at about 150 to 300 ° C., but the actual condition is that the desulfurization performance at room temperature is not always satisfactory.
For example, a desulfurization agent (for example, refer to Patent Document 1) in which Ag, Cu, Zn, Fe, Co, Ni, etc. are supported on a hydrophobic zeolite by ion exchange, or Ag or Cu is added to Y-type zeolite, β-type zeolite, or X-type zeolite. A desulfurization agent supporting Cu (for example, see Patent Document 2) is disclosed. However, although these desulfurization agents can efficiently adsorb and remove mercaptans and sulfides at room temperature, they hardly adsorb carbonyl sulfide.
Further, a copper-zinc desulfurization agent is disclosed (for example, see Patent Document 3). In this desulfurization agent, various sulfur compounds can be adsorbed and removed at a temperature of 150 ° C. or higher, but a low temperature of 100 ° C. or lower. Then, the adsorption | suction performance with respect to a sulfur compound is low. Furthermore, a desulfurization agent in which copper is supported on a porous carrier such as alumina is disclosed (for example, see Patent Document 4). Although this desulfurizing agent can be used even at a temperature of 100 ° C. or lower, its adsorption performance is not fully satisfactory.

JP 2001-286753 A JP 2001-305123 A JP-A-2-30296 JP 2001-123188 A

Under these circumstances, the present inventors have oxidized oxidation compounds as sulfur compound removal adsorbents that can efficiently remove various sulfur compounds in hydrocarbon fuels or oxygen-containing hydrocarbon fuels to a low concentration even at room temperature. The thing containing cerium was discovered (Japanese Patent Application No. 2003-150293 specification). However, when cerium oxide is molded using silica or alumina as a binder by ordinary extrusion molding or the like, there is a problem that molding cannot be performed or desulfurization ability deteriorates even if molding can be performed.
The present invention has been made under such circumstances, and can be formed even when extruding an inorganic oxide of a Group 3 or Group 4 metal such as cerium oxide, and desulfurization. It is an object of the present invention to provide a method for producing an adsorbent molded body for removing sulfur compounds that can maintain high performance.

  As a result of intensive studies to achieve the above object, the present inventors have found that the object of the present invention can be efficiently achieved by adding cellulose at the time of molding. The present invention has been completed based on such findings.

That is, the present invention
(1) When molding an inorganic oxide of Group 3 or Group 4 metal of the periodic table, at least one compound selected from the group consisting of cerium, zirconium and titanium is used as a binder, and cellulose is added as a molding aid. A method for producing an inorganic oxide molded article,
(2) The method for producing an inorganic oxide molded article according to (1) above, wherein a powder having a specific surface area of 50 m ² / g or less is further added and molded as a molding aid,
(3) The method for producing an inorganic oxide molded article according to (1) or (2), wherein the inorganic oxide is cerium oxide,
(4) The method for producing an inorganic oxide molded body according to (1) or (2), wherein the inorganic oxide is a composite oxide containing cerium,
(5) The method for producing an inorganic oxide molded body according to any one of (2) to (4), wherein the powder is a clay mineral and / or alumina.
(6) The method for producing an inorganic oxide molded body according to any one of (1) to (5) above, wherein the amount of cellulose added is 3% by mass or less based on the amount of the molded body obtained after drying.
(7) The method for producing an inorganic oxide molded body according to any one of (1) to (6), wherein the cellulose is any one of methyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose;
(8) The method for producing an inorganic oxide molded body according to any one of (5) to (7), wherein the clay mineral is kaolin,
(9) The binder is cerium nitrate, cerium acetate, cerium hydroxide, cerium chloride, cerium oxide sol, cerium sulfate, zirconium chloride, zirconium oxychloride, zirconia sol, zirconium hydroxide, zirconium sulfate, titanium chloride, titania sol or titanium sulfate. A method for producing an inorganic oxide molded body according to any one of the above (1) to (8),
(10) The method for producing an inorganic oxide molded body according to any one of the above (1) to (9), wherein the addition amount of the binder is 20% by mass or less based on the amount after drying of the obtained molded body.
(11) The inorganic oxide molding according to any one of (3) or (5) to (10), wherein the content as cerium oxide is 85% by mass or more based on the amount after drying of the obtained molded body. Body manufacturing method,
(12) The method for producing an inorganic oxide molded body according to any one of (1) to (11), wherein the molding method is extrusion molding,
(13) Manufacture of the inorganic oxide molded body characterized by forming by the method according to any one of (1) to (12) above, followed by baking at a temperature of 300 ° C. or higher and removing the added cellulose. Method,
(14) When molding an inorganic oxide of Group 3 or Group 4 metal of the periodic table, after adding and molding cellulose as a molding aid, drying at a temperature of 250 ° C. or lower, and adding at least the added cellulose A method for producing an inorganic oxide molded article characterized by containing a part thereof;
(15) An inorganic oxide molded body obtained by the production method according to any one of (1) to (14),
(16) A catalyst comprising the molded article according to (15) above,
(17) An adsorbent comprising the molded article according to (15) above,
(18) An adsorbent for removing a sulfur compound comprising the molded article according to (15) above,
(19) The sulfur compound removing adsorbent according to (18), wherein the sulfur compound is carbonyl sulfide,
(20) The sulfur compound removing adsorbent according to (18) or (19) above, wherein the sulfur compound is a hydrocarbon compound or a sulfur compound in dimethyl ether, and (21) the hydrocarbon material is LPG, city gas, The adsorbent for removing sulfur compounds according to the above (20), which is at least one selected from natural gas, ethane, ethylene, propane, propylene, butane, butene, naphtha, kerosene and light oil,
Is to provide.

  ADVANTAGE OF THE INVENTION According to this invention, the adsorbent molded object for sulfur compound removal which can be shape | molded and can maintain high desulfurization performance also at the time of extrusion molding the inorganic oxide of a group 3 or 4 metal of a periodic table. The manufacturing method of can be provided.

The present invention will be described below.
(1) When forming an inorganic oxide of Group 3 or Group 4 metal of the periodic table, at least one compound selected from the group consisting of cerium, zirconium and titanium is used as a binder, and cellulose is added as a forming aid. A method for producing an inorganic oxide molded body, characterized by being molded.
(2) A method for producing an inorganic oxide molded body, wherein a powder having a specific surface area of 50 m ² / g or less is further added and molded as a molding aid.
Examples of the Group 3 or Group 4 metal in the periodic table include oxides such as Sc, Y, La, Ce, Pr, Nd, Ti, and Zr. Ce is preferable as the adsorbent for the sulfur compound. . A composite oxide containing cerium can also be used. In this case, a composite oxide with zirconium and / or titanium is preferable.
In the case of cerium oxide, the content as cerium oxide is preferably 85% by mass or more, and more preferably 95% by mass or more based on the amount of the molded article obtained after drying from the viewpoint of desulfurization performance.
When cerium oxide is used, the specific surface area is preferably 100 m ² / g or more, and cerium oxide fired at 300 to 600 ° C. is preferable.

  By the way, in the extrusion molding of various metal oxides used for a catalyst, an alumina binder or a silica binder is usually used as a binder. As the alumina binder, colloidal alumina which is a hydroxide of aluminum, pseudo boehmite gel, or the like is used. As the silica binder, colloidal silica and sodium silicate called water glass are preferably used. When these binders are baked at 200 to 300 ° C., chemical bonds are generated by dehydration reaction of hydroxyl groups, and the particles are bonded. In particular, when an alumina binder is used in an amount of about 20 to 30%, an extruded molded body that is excellent in strength can be easily obtained. However, since the oxide surface is chemically altered, the characteristics of the original oxide may change. In particular, it has been found that cerium oxide has a poor performance as a desulfurizing agent.

In the present invention, as the binder, at least one compound selected from cerium, zirconium and titanium can be used. This cerium, zirconium and titanium are elements of Group 3 or Group 4 of the Periodic Table, and when these compounds are used as binders for Group 3 or Group 4 element oxides, firing is performed. Thus, each becomes an oxide and the properties of the elements are similar, so that an extruded product can be obtained without much changing the original characteristics of the Group 3 or Group 4 element oxide. In this case, examples of the cerium compound include cerium nitrate, cerium acetate, cerium hydroxide, cerium chloride, cerium oxide sol, and cerium sulfate. Examples of the zirconium compound include zirconium chloride, zirconium oxychloride, zirconia sol, zirconium hydroxide, zirconium sulfate and the like. Examples of the titanium compound include titanium chloride, titania sol, and titanium sulfate.
As described above, by adding a binder, the moldability of a metal oxide such as cerium oxide can be improved and the strength of the molded body can be increased without deteriorating the desulfurization performance.
The addition amount of the binder is preferably 20% by mass or less based on the amount after drying of the obtained molded body from the viewpoint of desulfurization activity.

  However, extrusion molding is not easily performed only with the binder such as cerium. Silica and alumina have a high water retention and form a viscous soft mixture. However, a binder such as a cerium compound cannot provide a mixture having a high water retention and is not easily extruded. Therefore, when a molding aid for improving water retention is added, extrusion molding can be easily performed. As molding aids that soften and plasticize a mixture for extrusion molding, glycerin, polyvinyl alcohol, cellulose, clay and the like are known. Thus, it has been found that cellulose is most effective when applied to oxides of Group 3 and Group 4 elements of the Periodic Table. In addition, the added cellulose covers the surface of Group 3 and Group 4 oxides of the Periodic Table, imparts lubricity to the mixture (reduces friction between particles), and makes extrusion extremely easy. In this case, examples of cellulose to be added include cellulose, methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, carboxyethyl cellulose, aminoethyl cellulose, and oxyethyl cellulose. Cellulose is used. The addition amount of cellulose is preferably 3% by mass or less based on the amount after drying of the obtained molded body from the viewpoint of preventing performance degradation.

Since the dried extruded molded article contains cellulose, it is excellent in strength. However, when used as a catalyst or an adsorbent, the strength of the molded article is reduced when firing is usually performed and the cellulose is removed. . However, if an inert powder is added together with cellulose, the strength of the molded product can be maintained even after firing. Such a powder is one that does not affect the characteristics of Group 3 and Group 4 oxides of the periodic table and needs to be able to maintain the strength of the compact.
Therefore, in the present invention, a powder having a specific surface area of 50 m ² / g or less can be used as another forming aid. If it exceeds 50 m ² / g, desulfurization performance may be reduced. As the powder, clay minerals such as kaolin, allophane, talc, mica and alumina can be preferably used. These may be used alone or in combination of two or more. Among clay minerals, kaolin is more preferable in terms of maintaining the strength of the molded body. The addition amount of the powder is preferably 30% by mass or less based on the amount after drying of the obtained molded body from the viewpoint of maintaining the desulfurization performance and the strength of the molded body.

  Examples of the molding method include ordinary molding methods such as extrusion molding, tableting molding, rolling granulation, and spray drying. Extrusion molding is preferred in terms of simplicity and desulfurization activity.

  In this invention, after shape | molding as mentioned above, you may use a molded object by baking the temperature of 300 degreeC or more, and removing the added cellulose. Further, when molding an inorganic oxide of Group 3 or Group 4 metal of the periodic table, after adding and molding cellulose as a molding aid, it is dried at a temperature of 250 ° C. or less, and at least one of the added celluloses. The strength of the molded body can be improved by drying at a temperature of 250 ° C. or less containing the part and leaving at least a part of the added cellulose. In this case, it is a matter of course that the above-mentioned binder or powder may be added.

  The molded product obtained by the method of the present invention can be used for a catalyst, a catalyst carrier, an adsorbent and the like. In particular, those containing cerium oxide can be used as an aqueous shift reaction, exhaust gas purification catalyst, CO oxidation catalyst, hydrocarbon oxidation catalyst or catalyst support, and as a sulfur compound adsorbent.

  Further, the molded body obtained by the method of the present invention carries 1 to 15 mass%, preferably 1 to 5 mass%, preferably 1 to 5 mass% of the elements in the periodic table on the basis of the final molded body. The desulfurization performance of cerium can be improved. As the above elements, Cs, Ba, Yb, Ti, Zr, Hf, Nb, Mo, W, Mn, Re, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn , Ga, In, Sn, Bi can be preferably mentioned. In addition, as a method for supporting the above elements, a pore filling method, a dipping method, an evaporation to dryness method, or the like can be adopted. After the support, drying at 50 to 200 ° C. and further firing at 250 to 500 ° C. may be performed. Note that desulfurization performance is further improved by firing at a relatively low temperature of 100 to 400 ° C.

The adsorbent molded body for removing sulfur compounds (hereinafter also referred to as a desulfurizing agent molded body) obtained as described above is natural gas, city gas, LPG, ethane, propane, propylene, butane, butylene, butadiene, dimethyl ether. It is applied to liquid hydrocarbon fuels such as gaseous hydrocarbon compounds such as naphtha, kerosene and light oil.
Examples of the sulfur compound to be removed include carbonyl sulfide, carbon disulfide, hydrogen sulfide, mercaptans, sulfides, and thiophenes, but the molded article of the present invention contains carbonyl sulfide that is difficult to desulfurize at room temperature. The effect to remove is great.

As a density | concentration of the sulfur compound in the gaseous fuel to which the desulfurization agent molded object of this invention is applied, 0.001-10,000 volume ppm is preferable, and 0.1-100 volume ppm is especially preferable. As desulfurization conditions, the normal temperature is selected in the range of -50 to 350 ° C., and the GHSV is selected in the range of 100 to 1,000,000 h ⁻¹ . In terms of desulfurization performance, the preferred temperature is in the range of −50 to 120 ° C., more preferably −20 to 100 ° C. Also preferred GHSV is 100～100,000H ^-1, more preferably from 100~50,000h ^-1.

Moreover, as a density | concentration of the sulfur compound in the liquid fuel to which the desulfurization agent molded object of this invention is applied, 80 mass ppm or less is preferable, and what was 20 mass ppm or less by hydrodesulfurization etc. is more preferable. As desulfurization conditions, the normal temperature is 20 to 300 ° C., the pressure is normal pressure to 10 MPa, and the LHSV is selected in the range of 0.1 to 1,000 h ⁻¹ .

Next, with respect to the production of hydrogen for fuel cells, the sulfur compound in the fuel is desulfurized using the desulfurizing agent molded body of the present invention described above, and then hydrogen is produced by reforming the desulfurized fuel. .
At this time, partial oxidation reforming, autothermal reforming, steam reforming, or the like can be used as the reforming method. In this reforming method, the concentration of the sulfur compound in the desulfurized fuel is preferably 0.1 ppm by volume or less, particularly 0.05 ppm by volume or less in the case of gaseous fuel from the viewpoint of the life of each reforming catalyst. preferable. In the case of liquid fuel, 0.1 mass ppm or less is preferable, and 0.05 mass ppm or less is particularly preferable.

  EXAMPLES Next, although an Example demonstrates this invention further in detail, this invention is not limited at all by these examples.

[Preparation Example 1] Preparation of cerium oxide (CeO ₂ ) 470 g of cerium nitrate hexahydrate (special grade, manufactured by Wako Pure Chemical Industries, Ltd.) was dissolved in 1 L of ion-exchanged water heated to 50 ° C. (preparation solution A) . Separately prepared 3 mol / L sodium hydroxide solution was prepared (preparation solution B). While maintaining the mixed solution at pH 13, both A and B solutions were mixed dropwise. The mixture was stirred for 1 hour while maintaining at 50 ° C. Thereafter, the precipitated cake was washed and filtered using 20 L of ion-exchanged water, and the product was dried for 12 hours in a 120 ° C. blower dryer and calcined at 400 ° C. for 3 hours. Then, it shape | molded by tableting molding and grind | pulverized, and the molded object of the average particle diameter 0.8mm was obtained.

[Example 1]
Appropriate water for 85 g of cerium oxide prepared in Preparation Example 1, 40 g of cerium nitrate solution (CeO ₂ , 25% by mass), 5 g of kaolin (ASP-170, manufactured by Engelhard), 3 g of methylcellulose (SM4000, manufactured by Shin-Etsu Chemical) After kneading, extrusion molding was performed. After drying at 120 ° C., baking was performed at 400 ° C. A desulfurization agent molded body having a diameter of 1 mm and a length of 2 mm of CeO ₂ (95% by mass) and kaolin (5% by mass) was obtained. This molded body was subjected to a desulfurization performance test in the following manner. The results are shown in Table 1.

<Desulfurization performance test>
A desulfurization tube (product) 20 cm ³ was filled into a desulfurization pipe having an inner diameter of 20 mm. Propane gas containing 40 ppm by volume of COS was circulated at GHSV = 30,000 ⁻¹ at normal pressure and a desulfurizing agent temperature of 20 ° C. The sulfur compound concentration in the desulfurization pipe outlet gas was measured by SCD (chemiluminescence detector) gas chromatography, and the desulfurization rate of COS after 15 hours was determined.

[Example 2]
In Example 1, except that 5 g of alumina having a specific surface area of 10 m ² / g was added instead of 5 g of kaolin, it was molded in the same manner as in Example 1 and CeO ₂ (95% by mass), 1 mm diameter of alumina (5% by mass) A desulfurization agent molded body having a length of 2 mm was obtained. This molded body was tested for desulfurization performance in the same manner as in Example 1. The results are shown in Table 1.

Example 3
In Example 1, molding was performed in the same manner as in Example 1 except that 40 g of cerium nitrate solution (CeO ₂ , 25 mass%) was changed to 20 g, and 10 g of alumina having a specific surface area of 10 m ² / g was added instead of 5 g of kaolin. A desulfurizing agent molded body of 1 mm diameter and 2 mm length of CeO ₂ (90 mass%) and alumina (10 mass%) was obtained. This molded body was tested for desulfurization performance in the same manner as in Example 1. The results are shown in Table 1.

Example 4
In Example 1, 67 g of cerium acetate solution (CeO ₂ , 15% by mass) was used instead of 40 g of cerium nitrate solution (CeO ₂ , 25% by mass), and 5 g of alumina having a specific surface area of 10 m ² / g instead of 5 g of kaolin. The desulfurization agent molded body of 1 mm diameter and 2 mm length of CeO ₂ (95% by mass) and alumina (5% by mass) was obtained in the same manner as Example 1 except that was used. This molded body was tested for desulfurization performance in the same manner as in Example 1. The results are shown in Table 1.

Example 5
In Example 1, except that 75 g of zirconia sol solution (ZrO ₂ , 20% by mass) was used instead of 40 g of the cerium nitrate solution (CeO ₂ , 25% by mass) solution, it was molded in the same manner as Example 1 and CeO ₂ ( 85% by mass), ZrO ₂ (15% by mass) having a 1 mm diameter and a length of 2 mm was obtained. This molded body was tested for desulfurization performance in the same manner as in Example 1. The results are shown in Table 1.

Example 6
After adding moderate water to 98 g of cerium oxide prepared in Preparation Example 1 and 2 g of methylcellulose (SM4000, manufactured by Shin-Etsu Chemical Co., Ltd.), the mixture was extruded, dried at 150 ° C., CeO ₂ (98 mass%), A desulfurization agent molded body of 1 mm diameter and 2 mm length of methyl cellulose (2% by mass) was obtained. This molded body was tested for desulfurization performance in the same manner as in Example 1. The results are shown in Table 1.

[Comparative Example 1]
Appropriate water was added to 80 g of cerium oxide prepared in Preparation Example 1 and alumina having an Al ₂ O ₃ content of 71% by mass (Cataloid AP1, manufactured by Catalyst Kasei Co., Ltd., specific surface area of 300 m ² / g after firing at 400 ° C.). After the addition, extrusion molding was performed, followed by drying at 120 ° C. and firing at 400 ° C. to obtain a desulfurization agent molded body of CeO ₂ (80 mass%) and alumina (20 mass%) having a 1 mm diameter and a length of 2 mm. This molded body was tested for desulfurization performance in the same manner as in Example 1. The results are shown in Table 1.

[Comparative Example 2]
90 g of cerium oxide prepared in Preparation Example 1, 71 g of alumina having an Al ₂ O ₃ content of 71% by mass (Cataloid AP1, manufactured by Catalyst Kasei Co., Ltd., specific surface area of 300 m ² / g after baking at 400 ° C.), methylcellulose (SM4000, Shin-Etsu Chemical Co., Ltd.) (Made) 3g of moderate water added, kneaded, extruded, dried at 120 ° C and calcined at 400 ° C, 1mm diameter, length of CeO ₂ (90% by mass), alumina (10% by mass) A 2 mm desulfurization agent molded body was obtained. This molded body was tested for desulfurization performance in the same manner as in Example 1. The results are shown in Table 1.

[Comparative Example 3]
In Example 1, extrusion molding was attempted in the same manner as in Example 1 without adding 5 g of kaolin (ASP-170, manufactured by Engelhard) and 3 g of methylcellulose (SM4000, manufactured by Shin-Etsu Chemical Co., Ltd.), but could not be molded.

[Comparative Example 4]
In Example 1, 40 g of a cerium nitrate 25 mass% solution and 3 g of methylcellulose (SM4000, manufactured by Shin-Etsu Chemical Co., Ltd.) were added, but extrusion molding was attempted in the same manner as in Example 1, but molding was not possible.

[Comparative Example 5]
Extrusion molding was attempted using 80 g of cerium oxide prepared in Preparation Example 1 and 100 g of silica sol (SiO ₂ , 20 mass%), but could not be molded.

Claims (21)

When molding an inorganic oxide of Group 3 or Group 4 metal of the Periodic Table, at least one compound selected from the group consisting of cerium, zirconium and titanium is used as a binder, and cellulose is added as a molding aid. The manufacturing method of the inorganic oxide molded object characterized by the above-mentioned. ^{2. The} method for producing an inorganic oxide molded article according to claim 1, further comprising adding a powder having a specific surface area of 50 m < ² > / g or less as a molding aid. The method for producing an inorganic oxide molded article according to claim 1 or 2, wherein the inorganic oxide is cerium oxide. The method for producing an inorganic oxide molded article according to claim 1 or 2, wherein the inorganic oxide is a composite oxide containing cerium. The method for producing an inorganic oxide molded body according to any one of claims 2 to 4, wherein the powder is a clay mineral and / or alumina. The method for producing an inorganic oxide molded body according to any one of claims 1 to 5, wherein the amount of cellulose added is 3% by mass or less based on the amount of the molded body obtained after drying. The method for producing an inorganic oxide molded article according to any one of claims 1 to 6, wherein the cellulose is any one of methyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose. The method for producing an inorganic oxide molded body according to any one of claims 5 to 7, wherein the clay mineral is kaolin. The binder is cerium nitrate, cerium acetate, cerium hydroxide, cerium chloride, cerium oxide sol, cerium sulfate, zirconium chloride, zirconium oxychloride, zirconia sol, zirconium hydroxide, zirconium sulfate, titanium chloride, titania sol or titanium sulfate. The manufacturing method of the inorganic oxide molded object in any one of 1-8. The method for producing an inorganic oxide molded body according to any one of claims 1 to 9, wherein the addition amount of the binder is 20% by mass or less based on the amount of the molded body obtained after drying. The method for producing an inorganic oxide molded body according to any one of claims 3 and 5 to 10, wherein the content as cerium oxide is 85% by mass or more based on the amount of the molded body obtained after drying. The method for producing an inorganic oxide molded body according to any one of claims 1 to 11, wherein the molding method is extrusion molding. A method for producing an inorganic oxide molded body, comprising: molding by the method according to any one of claims 1 to 12, followed by firing at a temperature of 300 ° C or higher, and removing added cellulose. When molding an inorganic oxide of Group 3 or Group 4 metal of the periodic table, after adding cellulose as a molding aid and molding, it is dried at a temperature of 250 ° C. or less, and at least a part of the added cellulose is The manufacturing method of the inorganic oxide molded object characterized by including. The inorganic oxide molded object obtained by the manufacturing method in any one of Claims 1-14. The catalyst which consists of a molded object of Claim 15. An adsorbent comprising the molded article according to claim 15. The adsorbent for sulfur compound removal which consists of a molded object of Claim 15. The adsorbent for removing a sulfur compound according to claim 18, wherein the sulfur compound is carbonyl sulfide. The sulfur compound removing adsorbent according to claim 18 or 19, wherein the sulfur compound is a sulfur compound in a hydrocarbon raw material or dimethyl ether. The adsorbent for removing sulfur compounds according to claim 20, wherein the hydrocarbon raw material is at least one selected from LPG, city gas, natural gas, ethane, ethylene, propane, propylene, butane, butene, naphtha, kerosene and light oil.