Adsorbent for removing methanol in liquid hydrocarbon as well as preparation method and application of adsorbent

Abstract

The invention discloses an adsorbent for removing methanol from liquid hydrocarbon as well as a preparation method and application of the adsorbent, belongs to the technical field of liquid hydrocarbon dealcoholization, and can effectively remove methanol from liquid hydrocarbon through combination of active adsorption species and a porous carrier in a specific proportion. The mass loading amount of the active adsorption species is in the range of 5-50%, enough adsorption capacity is ensured, meanwhile, the stability and mechanical strength of the adsorbent are kept, the adsorbent can effectively adsorb methanol in liquid hydrocarbon, the technical problem that the methanol content in the liquid hydrocarbon is high, and consequently products such as ethane, liquefied petroleum gas and stable light hydrocarbon contain methanol is solved, and the method is suitable for industrial production. The adsorbent with excellent methanol removal performance can be efficiently prepared through simple preparation steps including dissolving, mixing, drying by distillation under reduced pressure and drying. The method is low in cost and easy for industrial production, and the liquid hydrocarbon raw material containing trace methanol is treated by the solid adsorbent bed layer, so that methanol can be efficiently removed, and a liquid hydrocarbon product meeting requirements is obtained.

Description

Technical Field

[0001] This invention belongs to the field of liquid hydrocarbon deethanolization technology, specifically relating to an adsorbent for methanol removal from liquid hydrocarbons, its preparation method, and its application. Background Technology

[0002] Liquefied petroleum gas (LPG), a hydrocarbon mixture primarily composed of propane and butane (typically exceeding 60%), has long been widely used as fuel in households due to its high calorific value, smokeless emissions, lack of soot residue, and ease of operation. However, this application model often implies relatively low utilization efficiency, failing to fully realize its potential value. Faced with the increasing depletion of global fossil resources and the environmental challenges posed by the intensifying greenhouse effect, the utilization direction of LPG urgently needs to shift. In the future, LPG is expected to play a more important role in industrial production, transforming into high-value-added chemicals through advanced chemical processes, such as pyrolysis to olefins, thereby contributing to sustainable development.

[0003] In traditional fuel applications, liquefied petroleum gas (LPG) often contains trace amounts of methanol. Methanol, a highly flammable chemical, produces only carbon dioxide and water upon complete combustion, which is harmless to the environment. Therefore, when LPG is primarily used as fuel, these trace amounts of methanol do not significantly affect its calorific value, nor do they lead to the emission of toxic or harmful substances.

[0004] However, as natural gas and its byproducts gradually shift from a traditional energy source to an important chemical feedstock, the presence of methanol is beginning to show its potential impact on chemical production processes. This impact manifests primarily in two ways: First, methanol increases the adsorption and regeneration burden on molecular sieves in pretreatment units, prolonging the heating and regeneration cycle of the molecular sieve adsorption tower. This can potentially lead to water content in the dehydrated dry gas exceeding design standards (e.g., 0.1 ppm), threatening the stable operation of cryogenic systems. Second, methanol can also mix with products such as ethane, liquefied petroleum gas (LPG), and stabilized light hydrocarbons, affecting the stability of downstream cracking processes and reducing product quality. Particularly in the cracking process for ethylene production, if stabilized light hydrocarbons and LPG contain methanol, it can cause coking in the cracking furnace, poisoning of the C2 hydrogenation catalyst, and abnormal temperature increases in the methanation reactor, posing a serious threat to the safe operation of the unit. Even more seriously, when the methanol content in LPG reaches a certain critical value, it can also lead to excessive levels of evaporation residues in the LPG, further affecting product quality and market acceptance.

[0005] For the reasons mentioned above, effectively removing trace amounts of methanol from liquefied petroleum gas (LPG) to ensure that the methanol content in the product meets relevant standards has become a critical issue that urgently needs to be addressed in the chemical utilization of LPG. This is not only related to product quality and market competitiveness, but also a vital link in ensuring the safe, stable, and sustainable development of chemical production processes. Summary of the Invention

[0006] The purpose of this invention is to provide an adsorbent for removing methanol from liquid hydrocarbons, its preparation method and application, in order to solve the technical problem of excessive methanol in liquefied petroleum gas.

[0007] To achieve the above objectives, the present invention employs the following technical solution: An adsorbent for removing methanol from liquid hydrocarbons includes an active adsorbent species and a porous support, wherein the active adsorbent species have a mass loading of 5-50% in the adsorbent, and the remainder is the porous support.

[0008] Preferably, the active adsorbent species is at least one of calcium chloride, magnesium chloride, barium chloride, aluminum chloride, and copper sulfate.

[0009] Preferably, the porous carrier has a specific surface area of ​​50~500 m2 / g and a pore volume of 0.2~2.0 cm3 / g.

[0010] A method for preparing an adsorbent for methanol removal from liquid hydrocarbons, comprising: Solution A is obtained by dispersing and dissolving the active species salt in a solvent; Solution A was mixed with a porous support, and the solvent was evaporated under reduced pressure to obtain adsorbent precursor B. The adsorbent precursor B was dried to obtain the adsorbent.

[0011] Preferably, the solvent is selected from at least one of water, ethanol, isopropanol, and acetone, the drying temperature is 60~150℃, and the mass concentration of salt A in solution is 5~60%.

[0012] The application of adsorbents for methanol removal from liquid hydrocarbons in the removal of trace amounts of methanol from liquid hydrocarbons includes the following steps: passing liquid hydrocarbon feedstock containing trace amounts of methanol through a solid adsorbent bed, so that the methanol and the solid adsorbent are in full contact, to obtain liquid hydrocarbon products.

[0013] Preferably, the liquid hydrocarbon is at least one of hydrocarbons having 2 to 12 carbon atoms.

[0014] Preferably, the methanol concentration in the liquid hydrocarbon feedstock is 500~50000 ppm.

[0015] Preferably, the temperature of the liquid hydrocarbon feedstock passing through the adsorbent bed is -50~50℃.

[0016] Preferably, the pressure of the liquid hydrocarbon feedstock passing through the adsorbent bed is 0~2.5 MPa.

[0017] Compared with existing technologies, the present invention has the following advantages: The present invention provides an adsorbent for removing methanol from liquid hydrocarbons. Through a combination of a specific ratio of active adsorbent species and a porous support, methanol can be effectively removed from liquid hydrocarbons. The mass loading of the active adsorbent species is in the range of 5-50%, ensuring sufficient adsorption capacity while maintaining the stability and mechanical strength of the adsorbent, enabling it to effectively adsorb methanol from liquid hydrocarbons and solving the technical problem of high methanol content in liquefied petroleum gas.

[0018] Furthermore, the active adsorbent species are selected from at least one of calcium chloride, magnesium chloride, barium chloride, aluminum chloride, and copper sulfate. These substances have good adsorption performance for methanol and can effectively reduce the methanol content in liquid hydrocarbons.

[0019] Furthermore, the specific surface area and pore volume of the porous carrier are within a specified range, providing sufficient surface area and pore structure, which is beneficial for the dispersion of active adsorbent species and the adsorption of methanol molecules, thereby improving adsorption efficiency and capacity.

[0020] The present invention also provides a method for preparing an adsorbent for methanol removal from liquid hydrocarbons, wherein an active species salt is dispersed and dissolved in a solvent to obtain solution A; Solution A was mixed with a porous support, and the solvent was evaporated under reduced pressure to obtain adsorbent precursor B. The adsorbent precursor B was dried to obtain the adsorbent.

[0021] An adsorbent with excellent methanol removal performance can be efficiently prepared through simple preparation steps, including dissolution, mixing, vacuum evaporation, and drying. This method is inexpensive and easy to industrialize.

[0022] Furthermore, water, ethanol, isopropanol, acetone, etc. are selected as solvents. These solvents have good solubility for active species salts and are easy to remove by vacuum evaporation, leaving no residues that negatively affect adsorption performance.

[0023] This invention also provides an application of an adsorbent for removing methanol from liquid hydrocarbons. Liquid hydrocarbon feedstock containing trace amounts of methanol is passed through a solid adsorbent bed, allowing for sufficient contact between the methanol and the solid adsorbent to obtain the liquid hydrocarbon product. Treating liquid hydrocarbon feedstock containing trace amounts of methanol with a solid adsorbent bed efficiently removes methanol, yielding a liquid hydrocarbon product that meets the requirements. This method is simple to operate and easy to control.

[0024] Furthermore, the range of liquid hydrocarbon feedstocks is wide, including hydrocarbons with 2 to 12 carbon atoms, which makes this method applicable to methanol removal from a variety of liquid hydrocarbon products, thus improving its application scope and flexibility.

[0025] Furthermore, this method can effectively reduce the methanol content of liquid hydrocarbon feedstocks containing a certain concentration of methanol to meet production requirements. At the same time, it is highly adaptable to different methanol concentrations in the feedstock, improving the flexibility and efficiency of the processing.

[0026] Furthermore, operating within the specified temperature range ensures stable adsorption performance of the adsorbent for methanol, while avoiding excessively high temperatures that could lead to adsorbent deactivation or adverse reactions with the liquid hydrocarbon feedstock.

[0027] Furthermore, operating within a specified pressure range ensures smooth flow of the liquid hydrocarbon feedstock through the adsorbent bed, while avoiding adverse effects of excessive pressure on adsorption performance and the equipment. This controlled condition facilitates a highly efficient and stable methanol removal process. Attached Figure Description

[0028] Figure 1 This is a flowchart of a method for preparing an adsorbent for methanol removal from liquid hydrocarbons according to the present invention; Figure 2 This shows the trend of methanol removal rate in liquid hydrocarbons over time in Example 11 of the present invention. Detailed Implementation

[0029] To enable those skilled in the art to understand the features and effects of the present invention, the terms and expressions used in the specification and claims are explained and defined in general below. Unless otherwise specified, all technical and scientific terms used herein have the ordinary meaning understood by those skilled in the art regarding the present invention, and in case of conflict, the definitions in this specification shall prevail.

[0030] The theories or mechanisms described and disclosed herein, whether right or wrong, should not in any way limit the scope of the invention, that is, the contents of the invention can be implemented without being limited by any particular theory or mechanism.

[0031] In this document, all features defined by numerical ranges or percentage ranges, such as numerical values, quantities, contents, and concentrations, are for the sake of brevity and convenience only. Accordingly, descriptions of numerical ranges or percentage ranges should be considered as covering and specifically disclosing all possible sub-ranges and individual numerical values ​​(including integers and fractions) within those ranges.

[0032] In this article, unless otherwise specified, “contains,” “includes,” “containing,” “has,” or similar terms cover the meanings of “composed of” and “mainly composed of,” for example, “A contains a” covers the meanings of “A contains a and others” and “A contains only a.”

[0033] For the sake of brevity, not all possible combinations of the technical features in each implementation scheme or embodiment are described herein. Therefore, as long as there is no contradiction in the combination of these technical features, the technical features in each implementation scheme or embodiment can be combined arbitrarily, and all possible combinations should be considered within the scope of this specification.

[0034] This invention provides an adsorbent for methanol removal from liquid hydrocarbons, comprising active adsorbent species and a porous support, wherein the mass loading of the active adsorbent species in the adsorbent is 5-50%, and the remainder is the porous support.

[0035] By combining a specific ratio of active adsorbent species and a porous support, methanol can be effectively removed from liquid hydrocarbons. The mass loading of the active adsorbent species ranges from 5% to 50%, ensuring sufficient adsorption capacity while maintaining the stability and mechanical strength of the adsorbent. This allows for the effective adsorption of methanol from liquid hydrocarbons, solving the technical problem of high methanol content in liquid hydrocarbons leading to the presence of methanol in products such as ethane, liquefied petroleum gas, and stabilized light hydrocarbons.

[0036] The active adsorbent species is at least one of calcium chloride, magnesium chloride, barium chloride, aluminum chloride, and copper sulfate. These substances have good adsorption properties for methanol and can effectively reduce the methanol content in liquid hydrocarbons.

[0037] The porous carrier has a specific surface area of ​​50~500 m2 / g and a pore volume of 0.2~2.0 cm3 / g. The specific surface area and pore volume of the porous carrier are within the specified range, providing sufficient surface area and pore structure, which is conducive to the dispersion of active adsorbent species and the adsorption of methanol molecules, thereby improving adsorption efficiency and capacity.

[0038] A method for preparing an adsorbent for methanol removal from liquid hydrocarbons, comprising: The active species salt is dispersed and dissolved in a solvent to form solution A with a salt mass concentration of 5-60%; Solution A was mixed with a porous support, and the solvent was evaporated under reduced pressure to obtain adsorbent precursor B. The adsorbent precursor B was dried at 60~150℃ to obtain the adsorbent.

[0039] An adsorbent with excellent methanol removal performance can be efficiently prepared through simple preparation steps, including dissolution, mixing, vacuum evaporation, and drying. This method is inexpensive and easy to industrialize.

[0040] The solvent is selected from at least one of water, ethanol, isopropanol, and acetone. These solvents have good solubility for active species salts and are easily removed by vacuum evaporation without leaving any residues that negatively affect adsorption performance.

[0041] A method for applying an adsorbent to remove trace amounts of methanol from liquid hydrocarbons involves passing a liquid hydrocarbon feedstock containing trace amounts of methanol through a solid adsorbent bed. This allows for sufficient contact between the methanol and the solid adsorbent, resulting in a liquid hydrocarbon product. Treating the liquid hydrocarbon feedstock containing trace amounts of methanol with a solid adsorbent bed efficiently removes methanol, yielding a liquid hydrocarbon product that meets the required specifications. This method is simple to operate and easy to control.

[0042] The liquid hydrocarbon is at least one of hydrocarbons with 2 to 12 carbon atoms. The selection range of liquid hydrocarbon raw materials is wide, including hydrocarbons with 2 to 12 carbon atoms. This makes the method applicable to methanol removal from a variety of liquid hydrocarbon products, improving its application range and flexibility.

[0043] The methanol concentration in liquid hydrocarbon feedstock ranges from 500 to 50,000 ppm. This method effectively reduces the methanol content of liquid hydrocarbon feedstocks containing a certain concentration of methanol, meeting production requirements. Furthermore, it exhibits strong adaptability to varying methanol concentrations in the feedstock, improving the flexibility and efficiency of the treatment process.

[0044] The temperature of the liquid hydrocarbon feedstock as it passes through the adsorbent bed is -50 to 50°C. Operating within the specified temperature range ensures the stability of the adsorbent's adsorption performance for methanol, while avoiding excessively high temperatures that could lead to adsorbent deactivation or adverse reactions in the liquid hydrocarbon feedstock.

[0045] The pressure of the liquid hydrocarbon feedstock passing through the adsorbent bed is 0~2.5 MPa. Operating within this specified pressure range ensures smooth flow of the liquid hydrocarbon feedstock through the adsorbent bed while avoiding adverse effects of excessive pressure on adsorption performance and the equipment. This controlled condition facilitates a highly efficient and stable methanol removal process.

[0046] After processing using the above methods, the methanol content in the liquefied petroleum gas product is no higher than 1000 ppm, and the methanol removal rate is no less than 90%.

[0047] Product analysis method: The methanol content in liquefied petroleum gas before and after methanol removal was analyzed by an Agilent 7890a online gas chromatograph equipped with an HP-5 capillary column (30m×0.32mm×0.25μm).

[0048] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0049] The following examples use instruments and equipment conventional in the art. Experimental methods in the following examples, unless otherwise specified, are generally performed under conventional conditions or as recommended by the manufacturer. All raw materials used in the following examples are conventional commercially available products with specifications conventional in the art. In this specification and the following examples, unless otherwise specified, "%" refers to weight percentage, "parts" refers to parts by weight, and "ratio" refers to weight proportion.

[0050] Example 1: Preparation of Adsorbent 15g of barium chloride was dispersed and dissolved in 85g of deionized water to form a barium chloride solution with a mass concentration of 15%; then, the obtained barium chloride solution was mixed with 75g of alumina support (pore volume 0.72 cm³). 3 / g, specific surface area is 218 m² 2 Mix (g) and evaporate the solvent under reduced pressure to obtain the adsorbent precursor; dry the obtained adsorbent precursor at 120℃ to obtain adsorbent 20wt.%BaCl2 / Al2O3, denoted as ADS-1.

[0051] Example 2: Adsorbent Preparation Example 2 is basically the same as Example 1, except that barium chloride in Example 1 is replaced with calcium chloride. The rest of the operation is exactly the same as in Example 1, and an adsorbent of 20 wt.% CaCl2 / Al2O3 is obtained, which is denoted as ADS-2.

[0052] Example 3: Preparation of Adsorbent Example 3 is basically the same as Example 1, except that barium chloride in Example 1 is replaced with magnesium chloride. The rest of the operation is exactly the same as in Example 1, and the adsorbent 20wt.%MgCl2 / Al2O3 is obtained, which is denoted as ADS-3. Example 4: Preparation of Adsorbent Example 4 is basically the same as Example 1, except that barium chloride in Example 1 is replaced with copper chlorosulfate. The rest of the operation is exactly the same as in Example 1, and the adsorbent 20wt.%CuSO4 / Al2O3 is obtained, which is denoted as ADS-4.

[0053] Example 5: Preparation of Adsorbent 5g of aluminum chloride was dispersed and dissolved in 95g of acetone to form an acetone solution with a chloride concentration of 5% (w / v). Then, the resulting aluminum chloride solution was mixed with an alumina support (pore volume 0.72 cm³). 3 / g, specific surface area is 218 m² 2 Mix (g) and evaporate the solvent under reduced pressure to obtain the adsorbent precursor; dry the obtained adsorbent precursor at 60℃ to obtain adsorbent 6.7wt.%AlCl3 / Al2O3, denoted as ADS-5.

[0054] Example 6 Adsorbent Preparation Example 6 is essentially the same as Example 1, except that the alumina support in Example 1 is replaced with silicon oxide (pore volume 1.8 cm). 3 / g, specific surface area is 465 m² 2 / g), the remaining operations are exactly the same as in Example 1, and the adsorbent 20wt.%BaCl2 / SiO2 is obtained, which is denoted as ADS-6.

[0055] Example 7 Adsorbent Preparation Example 7 is essentially the same as Example 1, except that the alumina support in Example 1 is replaced with titanium oxide (pore volume 0.22 cm³). 3 / g, specific surface area is 53 m² 2 / g), the remaining operations are exactly the same as in Example 1, and 20wt.%BaCl2 / TiO2 adsorbent is obtained, which is denoted as ADS-7.

[0056] Comparative Example 1: Preparation of Adsorbent Comparative Example 1 is basically the same as Example 1, except that the mass of barium chloride in Example 1 is reduced to 2.5g. The rest of the operation is exactly the same as in Example 1, and the adsorbent 3.3wt.%BaCl2 / Al2O3 is obtained, which is denoted as DADS-1.

[0057] Comparative Example 2: Preparation of Adsorbent Comparative Example 1 is essentially the same as Example 7, except that the titanium dioxide support in Example 7 is replaced with a support with a pore volume of 0.10 cm³. 3 / g, specific surface area is 23 m² 2 / g of titanium dioxide, and the rest of the operation was exactly the same as in Example 7, to obtain an adsorbent of 20wt.%BaCl2 / TiO2, denoted as DADS-2.

[0058] Example 8: Methanol Removal Experiment from Liquid Hydrocarbons 20 mL of the solid adsorbents ADS-1~ADS-7 and DADS-1~DADS-2 prepared in Examples 1~7 and Comparative Examples 1~2 were sequentially packed into an adsorption tower with an inner diameter of 11 mm. At 25 °C and 0.1 MPa, a hexane feedstock with a methanol concentration of 10000 ppm was passed through the adsorbent bed at a flow rate of 20 mL / h, meaning the residence time of the liquefied petroleum gas in the adsorbent bed was 1 h. After 2 h, the effluent hexane sample was collected, the residual methanol concentration in the sample was analyzed, and the methanol removal rate was calculated. The results are listed in Table 1.

[0059] Table 1. Summary of methanol removal experiments in liquid hydrocarbons in Example 8.

[0060]

[0061] Example 9: Methanol Removal Experiment from Liquid Hydrocarbons 20 mL of the solid adsorbent ADS-1 prepared in Example 1 was packed into an adsorption tower with an inner diameter of 11 mm. Liquefied ethane feedstock with a methanol concentration of 500 ppm was passed through the adsorbent bed at -50°C and 1.0 MPa. The liquefied ethane feedstock flow rate was 10 mL / h, meaning the residence time of the liquefied petroleum gas in the adsorbent bed was 0.5 h. After 2 h, the efflux ethane sample was collected, and the residual methanol concentration in the sample was analyzed to be 18.5 ppm, resulting in a methanol removal rate of 96.3%.

[0062] Example 10: Methanol Removal Experiment from Liquid Hydrocarbons Example 10 is essentially the same as Example 8, except that the 10,000 ppm methanol concentration of n-hexane in Example 8 is replaced with 20,000 ppm methanol concentration of C8~C6. 12 Mixed alkanes (mass ratio C8:C9:C9) 10 :C 11 :C 12 =1:1:1:1:1). After 2 hours, the effluent mixed alkane sample was collected, and the residual methanol concentration in the sample was analyzed to be 880 ppm, with a calculated methanol removal rate of 95.6%.

[0063] Example 11 Methanol Removal Experiment from Liquid Hydrocarbons 20 mL of the solid adsorbent ADS-1 prepared in Example 1 was sequentially packed into an adsorption tower with an inner diameter of 11 mm. At 25 °C and 0.6 MPa, a hexane feedstock with a methanol concentration of 10000 ppm was passed through the adsorbent bed at a flow rate of 60 mL / h, meaning the residence time of the liquefied petroleum gas in the adsorbent bed was 0.33 h. Subsequently, hexane samples were collected in fractions, and the residual methanol concentration in the samples was analyzed. The methanol removal rate was calculated, and the results are shown in Appendix. Figure 1 .

[0064] Comparative Example 3: Methanol Removal Experiment from Liquid Hydrocarbons Comparative Example 3 is essentially the same as Example 9, except that the ADS-1 adsorbent used in Example 9 is replaced with a pure alumina support (pore volume 0.72 cm³). 3 / g, specific surface area is 218 m² 2 / g), the remaining operations were exactly the same as in Example 9. After 2 hours, the efflux ethane sample was collected, and the residual methanol concentration in the sample was analyzed to be 291 ppm, with a methanol removal rate of 41.7% calculated.

[0065] Although embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific embodiments and application fields described above. The specific embodiments described above are merely illustrative and instructive, and not restrictive. Those skilled in the art, guided by the specification, can make many other modifications without departing from the scope of the claims of the present invention, and all of these modifications are within the scope of protection of the present invention.

Claims

1. An adsorbent for removing methanol from liquid hydrocarbons, characterized in that, It includes active adsorbent species and porous carriers. The mass loading of active adsorbent species in the adsorbent is 5-50%, and the remainder is porous carrier.

2. The adsorbent for methanol removal from liquid hydrocarbons according to claim 1, characterized in that, The active adsorbent species is at least one of calcium chloride, magnesium chloride, barium chloride, aluminum chloride, and copper sulfate.

3. The adsorbent for methanol removal from liquid hydrocarbons according to claim 1, characterized in that, The porous carrier has a specific surface area of ​​50~500 m2 / g and a pore volume of 0.2~2.0 cm3 / g.

4. A method for preparing an adsorbent for methanol removal from liquid hydrocarbons according to any one of claims 1 to 3, characterized in that, include: Solution A is obtained by dispersing and dissolving the active species salt in a solvent; Solution A was mixed with a porous support, and the solvent was evaporated under reduced pressure to obtain adsorbent precursor B. The adsorbent precursor B was dried to obtain the adsorbent.

5. The method for preparing an adsorbent for methanol removal from liquid hydrocarbons according to claim 4, characterized in that, The solvent is selected from at least one of water, ethanol, isopropanol, and acetone, the drying temperature is 60~150℃, and the mass concentration of salt A in solution is 5~60%.

6. The application of the adsorbent for methanol removal from liquid hydrocarbons according to any one of claims 1 to 3 in the removal of trace amounts of methanol from liquid hydrocarbons, characterized in that, Includes the following steps: Liquid hydrocarbon feedstock containing trace amounts of methanol is passed through a solid adsorbent bed, allowing the methanol to come into full contact with the solid adsorbent to obtain the liquid hydrocarbon product.

7. The method of applying the adsorbent for removing trace amounts of methanol from liquid hydrocarbons according to claim 6, characterized in that, Liquid hydrocarbons are at least one of hydrocarbons with 2 to 12 carbon atoms.

8. The method of applying the adsorbent for removing trace amounts of methanol from liquid hydrocarbons according to claim 6, characterized in that, The methanol concentration in the liquid hydrocarbon feedstock is 500~50000 ppm.

9. The method of applying the adsorbent for removing trace amounts of methanol from liquid hydrocarbons according to claim 6, characterized in that, The temperature of the liquid hydrocarbon feedstock as it passes through the adsorbent bed is -50 to 50°C.

10. The method of applying the adsorbent for removing trace amounts of methanol from liquid hydrocarbons according to claim 6, characterized in that, The pressure of the liquid hydrocarbon feedstock passing through the adsorbent bed is 0~2.5 MPa.

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