A hydrogen-rich fuel for cooking and preparation method thereof

Abstract

The present invention discloses a method for preparing hydrogen-rich cooking fuel, comprising the following steps: producing hydrogen using methanol, then introducing hydrogen into a biomass slurry to react at a reaction temperature of 400-470°C, a hydrogen pressure of 10-15 MPa, and a hydrogen-to-slurry volume ratio of 500-1200, thereby producing the hydrogen-rich cooking fuel. The hydrogen-rich cooking fuel of the present invention utilizes biomass powder, solvent oil, and a specific process to form a biomass slurry, which is then reacted with hydrogen to produce the hydrogen-rich cooking fuel. The biomass powder is synergistically improved with modified sludge and additives to optimize the biomass energy content of the fuel.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen-rich fuel, and in particular to a hydrogen-rich fuel for cooking and a preparation method thereof. Background Art

[0002] The production of fuel oil is mainly based on the petrochemical industry and is heavily dependent on the source of raw materials. The technology for producing green fuel using biomaterials as raw materials is immature, and the product purity and quality are poor. The production conditions of green fuel oil do not meet the requirements of industrial production. The main problems are high cost, limited raw material collection, strong geographical restrictions, and high energy consumption. Based on this, the present invention further improves and processes it. Summary of the Invention

[0003] In view of the defects of the prior art, the purpose of the present invention is to provide a hydrogen-rich cooking fuel and a preparation method thereof to solve the problems raised in the above background technology.

[0004] The present invention solves the technical problem by adopting the following technical solutions:

[0005] The present invention provides a method for preparing hydrogen-rich cooking fuel, comprising the following steps:

[0006] Step 1: 35-40 parts of modified sludge, 10-15 parts of biomass powder and 4-7 parts of additives are evenly blended, then filter-pressed to dehydrate to less than 10%, and finally ball-milled thoroughly at a ball-milling speed of 1000 r / min for 1 hour. After the ball-milling is completed, the mixture is dried at room temperature for 5 days to obtain modified biomass powder;

[0007] Step 2: The modified biomass powder enters the oil biomass slurry preparation tank through a delivery pump, and the biomass powder and solvent oil are fully mixed under the stirring of a stirrer to form a biomass slurry;

[0008] The biomass slurry is extracted from the bottom of the biomass slurry preparation tank, circulated by the biomass slurry circulation pump, and returned to the biomass slurry preparation tank from the top of the biomass slurry preparation tank. The biomass slurry is extracted from the bottom of the biomass slurry preparation tank, pressurized by the biomass slurry delivery pump, and heat-exchanged with the high-temperature medium separated in the subsequent process. The temperature rises to about 255°C, and then enters the biomass slurry flash tank for flash evaporation. After being pressurized by the biomass slurry delivery pump, it is output as the feed of the hydrogenation reactor. After being pressurized by the biomass slurry delivery pump, the biomass slurry raw material is heat-exchanged with the hot high-fraction gas phase product, and then mixed with the circulating hydrogen exchanged with the gas phase reaction product, and then used as the feed of the hydrogenation reactor and heat-exchanged with the reactor product. After entering the heating furnace and heating to about 320-360°C, it enters the hydrogenation reactor for reaction;

[0009] Step 3: Use methanol to produce hydrogen, and then introduce hydrogen into the biomass slurry to react. The reaction temperature is 400-470℃, the hydrogen pressure is 10-15MPa, and the volume ratio of hydrogen to slurry is 500-1200, and hydrogen-rich fuel for cooking can be obtained.

[0010] Preferably, the biomass powder is one of straw powder and rice husk powder.

[0011] Preferably, the preparation method of the modified sludge is:

[0012] S01: Prepare 2-5% by mass lanthanum sulfate solution and 3-4% by mass dopamine hydrochloride solution;

[0013] Add 2-5 parts of lanthanum sulfate solution and 1-2 parts of sodium alginate powder to 5-8 parts of pozzolanic agent, then add 2-3 parts of dopamine hydrochloride solution and stir thoroughly to obtain a modified solution;

[0014] S02: Alumina is first irradiated in a proton irradiation box for 1-2 hours at an irradiation power of 350W. The irradiated alumina is stirred in a 2-5 times volume of the modified solution. After stirring, a modified alumina solution is obtained.

[0015] S03: immersing the sludge in a yttrium nitrate solution 3-5 times the total amount of the sludge until fully immersed. After the immersion is completed, filtering and drying are performed to obtain yttrium-doped sludge;

[0016] S04: The yttrium-doped sludge and the modified alumina solution were mixed in a weight ratio of 5:3 and subjected to ball milling at a ball milling speed of 1000 r / min for 1 h. After the ball milling was completed, the sludge was filtered and dried to obtain the modified sludge.

[0017] Preferably, the mass fraction of the yttrium nitrate solution is 2-5%.

[0018] Preferably, the immersion speed for full immersion is 500-700 r / min, and the immersion is for 1 hour; the stirring speed for the stirring treatment is 450-500 r / min, and the stirring is for 20 minutes.

[0019] Preferably, the pozzolanic agent is prepared by fully mixing volcanic rock, boron nitride and 5% by mass sodium dodecylbenzene sulfonate solution in a weight ratio of 2:1:3, and then filtering and drying to obtain the pozzolanic agent.

[0020] Preferably, the preparation method of the additive is:

[0021] S11: irradiating the cerium oxide in a proton irradiation box for 1-2 hours at an irradiation power of 350-400 W, and obtaining irradiated cerium oxide after the irradiation is completed;

[0022] S12: 3-5 parts of nano-carbon powder, 4-7 parts of urea solution, 2-3 parts of silane coupling agent KH550 and 2-3 parts of magnesium oxide are mixed to obtain a carbon solution;

[0023] The irradiated cerium oxide and the carbon liquid are ultrasonically treated in a weight ratio of 2:5, and then filtered and dried to obtain an additive.

[0024] Preferably, the mass fraction of the urea solution is 7-10%.

[0025] Preferably, the ultrasonic treatment is performed at an ultrasonic power of 500-700W for 1 hour.

[0026] The present invention also provides a method for preparing hydrogen-rich cooking fuel and hydrogen-rich fuel prepared therefrom.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The hydrogen-rich cooking fuel of the present invention uses biomass powder mixed with solvent oil through a specific process to form a biomass slurry, and then reacts with hydrogen to produce the hydrogen-rich fuel. The biomass powder is mixed with modified sludge and additives for synergistic improvement to optimize the biomass energy of the fuel. The modified sludge is improved with a modifying liquid using aluminum oxide. The lanthanum sulfate solution and sodium alginate powder in the modifying liquid are blended with raw materials such as a pozzolanic agent, and then yttrium-doped sludge is synergized and improved. The raw materials are mutually coordinated and enhanced to optimize the system mass-energy. At the same time, the carbon in the additive is blended with a urea solution, a silane coupling agent KH550, and magnesium oxide, and then irradiated cerium oxide is synergistically effective. The synergistic effect of the additive and the modified sludge is enhanced through the coordination of the raw materials, thereby further improving the performance of the product. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] A method for preparing hydrogen-rich cooking fuel in this embodiment includes the following steps:

[0031] Step 1: 35-40 parts of modified sludge, 10-15 parts of biomass powder and 4-7 parts of additives are evenly blended, then filter-pressed to dehydrate to less than 10%, and finally ball-milled thoroughly at a ball-milling speed of 1000 r / min for 1 hour. After the ball-milling is completed, the mixture is dried at room temperature for 5 days to obtain modified biomass powder;

[0032] Step 2: The modified biomass powder enters the oil biomass slurry preparation tank through a delivery pump, and the biomass powder and solvent oil (petroleum) are fully mixed under the stirring of a stirrer to form a biomass slurry;

[0033] Step 3: Use methanol to produce hydrogen, and then introduce hydrogen into the biomass slurry to react. The reaction temperature is 400-470℃, the hydrogen pressure is 10-15MPa, and the volume ratio of hydrogen to slurry is 500-1200, and hydrogen-rich fuel for cooking can be obtained.

[0034] The biomass powder in this embodiment is one of straw powder and rice husk powder.

[0035] The preparation method of the modified sludge of this embodiment is:

[0036] S01: Prepare 2-5% by mass lanthanum sulfate solution and 3-4% by mass dopamine hydrochloride solution;

[0037] Add 2-5 parts of lanthanum sulfate solution and 1-2 parts of sodium alginate powder to 5-8 parts of pozzolanic agent, then add 2-3 parts of dopamine hydrochloride solution and stir thoroughly to obtain a modified solution;

[0038] S02: Alumina is first irradiated in a proton irradiation box for 1-2 hours at an irradiation power of 350W. The irradiated alumina is stirred in a 2-5 times volume of the modified solution. After stirring, a modified alumina solution is obtained.

[0039] S03: immersing the sludge in a yttrium nitrate solution 3-5 times the total amount of the sludge until fully immersed. After the immersion is completed, filtering and drying are performed to obtain yttrium-doped sludge;

[0040] S04: The yttrium-doped sludge and the modified alumina solution were mixed in a weight ratio of 5:3 and subjected to ball milling at a ball milling speed of 1000 r / min for 1 h. After the ball milling was completed, the sludge was filtered and dried to obtain the modified sludge.

[0041] The mass fraction of the yttrium nitrate solution in this embodiment is 2-5%.

[0042] In this embodiment, the immersion speed for full immersion is 500-700 r / min, and the immersion time is 1 hour; the stirring speed for the stirring treatment is 450-500 r / min, and the stirring time is 20 minutes.

[0043] The pozzolanic agent of this embodiment is prepared by fully mixing volcanic rock, boron nitride and 5% by mass sodium dodecylbenzene sulfonate solution in a weight ratio of 2:1:3, and then filtering and drying to obtain the pozzolanic agent.

[0044] The preparation method of the additive of this embodiment is:

[0045] S11: irradiating the cerium oxide in a proton irradiation box for 1-2 hours at an irradiation power of 350-400 W, and obtaining irradiated cerium oxide after the irradiation is completed;

[0046] S12: 3-5 parts of nano-carbon powder, 4-7 parts of urea solution, 2-3 parts of silane coupling agent KH550 and 2-3 parts of magnesium oxide are mixed to obtain a carbon solution;

[0047] The irradiated cerium oxide and the carbon liquid are ultrasonically treated in a weight ratio of 2:5, and then filtered and dried to obtain an additive.

[0048] The mass fraction of the urea solution in this embodiment is 7-10%.

[0049] The ultrasonic treatment in this embodiment has an ultrasonic power of 500-700 W and is carried out for 1 hour.

[0050] The hydrogen-rich fuel is prepared by a method for preparing hydrogen-rich fuel for cooking in this embodiment.

[0051] Example 1.

[0052] A method for preparing hydrogen-rich cooking fuel in this embodiment includes the following steps:

[0053] Step 1: 35 parts of modified sludge, 10 parts of biomass powder and 4 parts of additives were evenly blended, then filter-pressed and dehydrated to less than 10%, and finally ball-milled thoroughly at a speed of 1000 r / min for 1 hour. After the ball milling was completed, the mixture was dried at room temperature for 5 days to obtain modified biomass powder;

[0054] Step 2: The biomass powder enters the oil biomass slurry preparation tank through the delivery pump, and the biomass powder and the solvent oil are fully mixed under the stirring of the stirrer to prepare the modified biomass slurry;

[0055] Step 3: Use methanol to produce hydrogen, and then introduce hydrogen into the biomass slurry to react. The reaction temperature is 400°C, the hydrogen pressure is 10MPa, and the volume ratio of hydrogen to slurry is 500-1200. You can get hydrogen-rich fuel for cooking.

[0056] The biomass powder in this embodiment is straw powder.

[0057] The preparation method of the modified sludge of this embodiment is:

[0058] S01: Prepare 2% by mass lanthanum sulfate solution and 3% by mass dopamine hydrochloride solution;

[0059] Add 2 parts of lanthanum sulfate solution and 1 part of sodium alginate powder to 5 parts of pozzolanic agent, then add 2 parts of dopamine hydrochloride solution and stir thoroughly to obtain a modified solution;

[0060] S02: Alumina is first irradiated in a proton irradiation box for 1 hour at an irradiation power of 350W. The irradiated alumina is stirred in a twice volume of the modification liquid. After stirring is completed, a modified alumina liquid is obtained;

[0061] S03: immersing the sludge in a yttrium nitrate solution 3-5 times the total amount of the sludge until fully immersed. After the immersion is completed, filtering and drying are performed to obtain yttrium-doped sludge;

[0062] S04: The yttrium-doped sludge and the modified alumina solution were mixed in a weight ratio of 5:3 and subjected to ball milling at a ball milling speed of 1000 r / min for 1 h. After the ball milling was completed, the sludge was filtered and dried to obtain the modified sludge.

[0063] The mass fraction of the yttrium nitrate solution in this embodiment is 2%.

[0064] In this embodiment, the immersion speed is 500 r / min for full immersion, and the immersion time is 1 hour; the stirring speed is 450 r / min for stirring for 20 minutes.

[0065] The pozzolanic agent of this embodiment is prepared by fully mixing volcanic rock, boron nitride and 5% by mass sodium dodecylbenzene sulfonate solution in a weight ratio of 2:1:3, and then filtering and drying to obtain the pozzolanic agent.

[0066] The preparation method of the additive of this embodiment is:

[0067] S11: irradiating the cerium oxide in a proton irradiation box for 1 hour at an irradiation power of 350 W, and obtaining irradiated cerium oxide after the irradiation is completed;

[0068] S12: 3 parts of nano-carbon powder, 4 parts of urea solution, 2 parts of silane coupling agent KH550 and 2 parts of magnesium oxide are mixed to obtain a carbon solution;

[0069] The irradiated cerium oxide and the carbon liquid are ultrasonically treated in a weight ratio of 2:5, and then filtered and dried to obtain an additive.

[0070] The mass fraction of the urea solution in this embodiment is 7%.

[0071] The ultrasonic treatment in this embodiment was performed with an ultrasonic power of 500 W and ultrasonic treatment for 1 hour.

[0072] The hydrogen-rich fuel is prepared by a method for preparing hydrogen-rich fuel for cooking in this embodiment.

[0073] Example 2.

[0074] A method for preparing hydrogen-rich cooking fuel in this embodiment includes the following steps:

[0075] Step 1: 40 parts of modified sludge, 15 parts of biomass powder and 7 parts of additives were evenly blended, then filter-pressed and dehydrated to less than 10%, and finally ball-milled thoroughly at a ball-milling speed of 1000 r / min for 1 hour. After the ball-milling was completed, the mixture was dried at room temperature for 5 days to obtain modified biomass powder;

[0076] Step 2: The modified biomass powder enters the oil biomass slurry preparation tank through a delivery pump, and the biomass powder and solvent oil are fully mixed under the stirring of a stirrer to form a biomass slurry;

[0077] Step 3: Use methanol to produce hydrogen, and then introduce hydrogen into the biomass slurry to react. The reaction temperature is 470°C, the hydrogen pressure is 15MPa, and the volume ratio of hydrogen to slurry is 1200, and hydrogen-rich fuel for cooking can be obtained.

[0078] The biomass powder in this embodiment is straw powder.

[0079] The preparation method of the modified sludge of this embodiment is:

[0080] S01: Prepare 5% by mass lanthanum sulfate solution and 4% by mass dopamine hydrochloride solution;

[0081] Add 5 parts of lanthanum sulfate solution and 2 parts of sodium alginate powder to 8 parts of pozzolanic agent, then add 3 parts of dopamine hydrochloride solution and stir thoroughly to obtain a modified solution;

[0082] S02: Alumina is first irradiated in a proton irradiation box for 2 hours at an irradiation power of 350W. The irradiated alumina is stirred in a 5-fold modified solution. After stirring, a modified alumina solution is obtained.

[0083] S03: immersing the sludge in a yttrium nitrate solution 5 times the total amount of the sludge until it is fully immersed. After the immersion is completed, the sludge is filtered and dried to obtain yttrium-doped sludge;

[0084] S04: The yttrium-doped sludge and the modified alumina solution were mixed in a weight ratio of 5:3 and subjected to ball milling at a ball milling speed of 1000 r / min for 1 h. After the ball milling was completed, the sludge was filtered and dried to obtain the modified sludge.

[0085] The mass fraction of the yttrium nitrate solution in this embodiment is 5%.

[0086] In this embodiment, the immersion speed for full immersion is 700 r / min, and the immersion time is 1 hour; the stirring speed for the stirring treatment is 500 r / min, and the stirring time is 20 minutes.

[0087] The pozzolanic agent of this embodiment is prepared by fully mixing volcanic rock, boron nitride and 5% by mass sodium dodecylbenzene sulfonate solution in a weight ratio of 2:1:3, and then filtering and drying to obtain the pozzolanic agent.

[0088] The preparation method of the additive of this embodiment is:

[0089] S11: irradiating the cerium oxide in a proton irradiation box for 2 hours at an irradiation power of 400 W, and then completing the irradiation to obtain irradiated cerium oxide;

[0090] S12: 5 parts of nano-carbon powder, 7 parts of urea solution, 3 parts of silane coupling agent KH550 and 3 parts of magnesium oxide are mixed to obtain a carbon solution;

[0091] The irradiated cerium oxide and the carbon liquid are ultrasonically treated in a weight ratio of 2:5, and then filtered and dried to obtain an additive.

[0092] The mass fraction of the urea solution in this embodiment is 10%.

[0093] The ultrasonic treatment in this embodiment was performed with an ultrasonic power of 700 W and ultrasonic treatment for 1 hour.

[0094] The hydrogen-rich fuel is prepared by a method for preparing hydrogen-rich fuel for cooking in this embodiment.

[0095] Example 3.

[0096] A method for preparing hydrogen-rich cooking fuel in this embodiment includes the following steps:

[0097] Step 1: 37.5 parts of modified sludge, 12.5 parts of biomass powder and 5.5 parts of additives were evenly blended, then filter-pressed and dehydrated to less than 10%, and finally ball-milled thoroughly at a ball-milling speed of 1000 r / min for 1 hour. After the ball-milling was completed, the mixture was dried at room temperature for 5 days to obtain modified biomass powder;

[0098] Step 2: The modified biomass powder enters the oil biomass slurry preparation tank through a delivery pump, and the biomass powder and solvent oil are fully mixed under the stirring of a stirrer to form a biomass slurry;

[0099] Step 3: Use methanol to produce hydrogen, and then introduce hydrogen into the biomass slurry to react. The reaction temperature is 430°C, the hydrogen pressure is 12.5MPa, and the volume ratio of hydrogen to slurry is 800. You can get hydrogen-rich fuel for cooking.

[0100] The biomass powder in this embodiment is rice husk powder.

[0101] The preparation method of the modified sludge of this embodiment is:

[0102] S01: Prepare 3.5% lanthanum sulfate solution and 3.5% dopamine hydrochloride solution;

[0103] 3 parts of lanthanum sulfate solution and 1.5 parts of sodium alginate powder were added to 7 parts of pozzolanic agent, followed by 2.5 parts of dopamine hydrochloride solution, and stirred thoroughly to obtain a modified solution;

[0104] S02: The alumina is first irradiated in a proton irradiation box for 1.5 hours at an irradiation power of 350W. The irradiated alumina is stirred in a 3.5 times volume of the modification liquid. After stirring is completed, a modified alumina liquid is obtained;

[0105] S03: immersing the sludge in a yttrium nitrate solution 4 times the total amount of the sludge until fully immersed. After the immersion is completed, filtering and drying are performed to obtain yttrium-doped sludge;

[0106] S04: The yttrium-doped sludge and the modified alumina solution were mixed in a weight ratio of 5:3 and subjected to ball milling at a ball milling speed of 1000 r / min for 1 h. After the ball milling was completed, the sludge was filtered and dried to obtain the modified sludge.

[0107] The mass fraction of the yttrium nitrate solution in this embodiment is 3.5%.

[0108] In this embodiment, the immersion speed is 600 r / min for full immersion, and the immersion time is 1 hour; the stirring speed is 470 r / min for stirring for 20 minutes.

[0109] The pozzolanic agent of this embodiment is prepared by fully mixing volcanic rock, boron nitride and 5% by mass sodium dodecylbenzene sulfonate solution in a weight ratio of 2:1:3, and then filtering and drying to obtain the pozzolanic agent.

[0110] The preparation method of the additive of this embodiment is:

[0111] S11: irradiating the cerium oxide in a proton irradiation box for 1.5 hours at an irradiation power of 375 W, and obtaining irradiated cerium oxide after the irradiation is completed;

[0112] S12: 4 parts of nano-carbon powder, 5.5 parts of urea solution, 2.5 parts of silane coupling agent KH550 and 2.5 parts of magnesium oxide are mixed to obtain a carbon solution;

[0113] The irradiated cerium oxide and the carbon liquid are ultrasonically treated in a weight ratio of 2:5, and then filtered and dried to obtain an additive.

[0114] The mass fraction of the urea solution in this embodiment is 8%.

[0115] The ultrasonic treatment in this embodiment has an ultrasonic power of 500-700 W and is carried out for 1 hour.

[0116] The hydrogen-rich fuel is prepared by a method for preparing hydrogen-rich fuel for cooking in this embodiment.

[0117] Example 4.

[0118] A method for preparing hydrogen-rich cooking fuel in this embodiment includes the following steps:

[0119] Step 1: 37.5 parts of modified sludge, 12.5 parts of biomass powder and 5.5 parts of additives were evenly blended, then filter-pressed and dehydrated to less than 10%, and finally ball-milled thoroughly at a ball-milling speed of 1000 r / min for 1 hour. After the ball-milling was completed, the mixture was dried at room temperature for 5 days to obtain biomass powder;

[0120] Step 2: The biomass powder enters the oil biomass slurry preparation tank through the delivery pump, and the biomass powder and solvent oil are fully mixed under the stirring of the stirrer to form biomass slurry;

[0121] Step 3: Use methanol to produce hydrogen, and then introduce hydrogen into the biomass slurry to react. The reaction temperature is 435°C, the hydrogen pressure is 12.5MPa, and the volume ratio of hydrogen to slurry is 800. You can get hydrogen-rich fuel for cooking.

[0122] The biomass powder in this embodiment is straw powder.

[0123] The preparation method of the modified sludge of this embodiment is:

[0124] S01: Prepare 3% by mass lanthanum sulfate solution and 3% by mass dopamine hydrochloride solution;

[0125] Add 3 parts of lanthanum sulfate solution and 2 parts of sodium alginate powder to 5 parts of pozzolanic agent, then add 2 parts of dopamine hydrochloride solution and stir thoroughly to obtain a modified solution;

[0126] S02: Alumina is first irradiated in a proton irradiation box for 2 hours at an irradiation power of 350W. The irradiated alumina is stirred in a 3-fold modification solution. After stirring, a modified alumina solution is obtained.

[0127] S03: immersing the sludge in a yttrium nitrate solution 4 times the total amount of the sludge until fully immersed. After the immersion is completed, filtering and drying are performed to obtain yttrium-doped sludge;

[0128] S04: The yttrium-doped sludge and the modified alumina solution were mixed in a weight ratio of 5:3 and subjected to ball milling at a ball milling speed of 1000 r / min for 1 h. After the ball milling was completed, the sludge was filtered and dried to obtain the modified sludge.

[0129] The mass fraction of the yttrium nitrate solution in this embodiment is 3%.

[0130] In this embodiment, the immersion speed is 600 r / min for full immersion, and the immersion time is 1 hour; the stirring speed is 4520 r / min for stirring for 20 minutes.

[0131] The pozzolanic agent of this embodiment is prepared by fully mixing volcanic rock, boron nitride and 5% by mass sodium dodecylbenzene sulfonate solution in a weight ratio of 2:1:3, and then filtering and drying to obtain the pozzolanic agent.

[0132] The preparation method of the additive of this embodiment is:

[0133] S11: irradiating the cerium oxide in a proton irradiation box for 2 hours at an irradiation power of 360 W, and then completing the irradiation to obtain irradiated cerium oxide;

[0134] S12: 4 parts of nano-carbon powder, 5 parts of urea solution, 3 parts of silane coupling agent KH550 and 2 parts of magnesium oxide are mixed to obtain a carbon solution;

[0135] The irradiated cerium oxide and the carbon liquid are ultrasonically treated in a weight ratio of 2:5, and then filtered and dried to obtain an additive.

[0136] The mass fraction of the urea solution in this embodiment is 8%.

[0137] The ultrasonic treatment in this embodiment was performed with an ultrasonic power of 600 W and an ultrasonic treatment time of 1 h.

[0138] The hydrogen-rich fuel is prepared by a method for preparing hydrogen-rich fuel for cooking in this embodiment.

[0139] Comparative Example 1.

[0140] The difference from Example 3 is that no modified sludge was added.

[0141] Comparative Example 2.

[0142] The difference from Example 3 is that no modified alumina liquid is added to the modified sludge.

[0143] Comparative Example 3.

[0144] Unlike Example 3, no pozzolanic agent was added in the preparation of the modified alumina liquid.

[0145] Comparative Example 4.

[0146] The difference from Example 3 is that the yttrium-doped sludge in the modified sludge is directly replaced by sludge.

[0147] Comparative Example 5.

[0148] The difference from Example 3 is that no additives were added.

[0149] Comparative Example 6.

[0150] The difference from Example 3 is that the preparation method of the additive is different, and carbon liquid treatment is not used.

[0151] Comparative Example 7.

[0152] The difference from Example 3 is that no nano carbon powder and magnesium oxide are added to the carbon liquid.

[0153] The performance test of Examples 1-3 and Comparative Examples 1-7, the biomass conversion rate is 1-(weight of coke in biomass) / weight of biomass feed, the test results are as follows

[0154] Biomass conversion rate (%) Calorific value (MJ / kg) Example 1 99.2 35.8 Example 2 99.3 36.3 Example 3 99.5 36.6 Comparative Example 1 84.3 24.7 Comparative Example 2 86.7 28.5 Comparative Example 3 89.8 30.3 Comparative Example 4 91.6 31.2 Comparative Example 5 86.2 25.9 Comparative Example 6 88.9 27.4 Comparative Example 7 89.7 29.5

[0155] From Examples 1-3 and Comparative Examples 1-7, it can be concluded that the product of Example 3 of the present invention has excellent biomass conversion rate and calorific value performance. Without adding modified sludge or additives to the product, the performance of the product has a significant deterioration trend. The synergistic effect of the two is the most obvious.

[0156] No modified alumina liquid was added to the modified sludge, no pozzolanic agent was added in the preparation of the modified alumina liquid, the yttrium-doped sludge in the modified sludge was directly replaced by sludge, the preparation method of the additives was different, carbon liquid treatment was not used, and nano-carbon powder and magnesium oxide were not added to the carbon liquid. The performance of the products all showed a trend of deterioration to varying degrees. Only the product raw materials obtained by the method of the present invention had the most obvious performance effect of the product, and the effects of other methods were not as significant as those of the present invention.

[0157] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0158] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for preparing hydrogen-rich cooking fuel, characterized in that: The following steps are involved: Step 1: 35-40 parts of modified sludge, 10-15 parts of biomass powder and 4-7 parts of additives are evenly blended, then filter-pressed to dehydrate to less than 10%, and finally ball-milled thoroughly at a speed of 1000 r / min for 1 hour. After the ball milling is completed, the mixture is dried at room temperature for 5 days to obtain modified biomass powder; Step 2: The modified biomass powder enters the oil biomass slurry preparation tank through a delivery pump, and the biomass powder and solvent oil are fully mixed under the stirring of a stirrer to form a biomass slurry; Step 3: Methanol is used to produce hydrogen, and then hydrogen is introduced into the biomass slurry to react at a temperature of 400-470°C, a hydrogen pressure of 10-15 MPa, and a volume ratio of hydrogen to biomass slurry of 500-1200, thereby obtaining hydrogen-rich cooking fuel. The preparation method of the modified sludge is: S01: Prepare 2-5% by mass lanthanum sulfate solution and 3-4% by mass dopamine hydrochloride solution; Add 2-5 parts of lanthanum sulfate solution and 1-2 parts of sodium alginate powder to 5-8 parts of pozzolanic agent, then add 2-3 parts of dopamine hydrochloride solution and stir thoroughly to obtain a modified solution; S02: Alumina is first irradiated in a proton irradiation box for 1-2 hours at an irradiation power of 350W. The irradiated alumina is stirred in a 2-5 times volume of the modified solution. After stirring, a modified alumina solution is obtained. S03: immersing the sludge in a yttrium nitrate solution 3-5 times the total amount of the sludge until fully immersed. After the immersion is completed, filtering and drying are performed to obtain yttrium-doped sludge; S04: The yttrium-doped sludge and the modified alumina solution were mixed in a weight ratio of 5:3 and ball-milled at a speed of 1000 r / min for 1 h. After the ball milling was completed, the mixture was filtered and dried to obtain the modified sludge; The pozzolanic agent is prepared by fully mixing volcanic rock, boron nitride and 5% by mass sodium dodecylbenzene sulfonate solution in a weight ratio of 2:1:3, and then filtering and drying to obtain the pozzolanic agent. The preparation method of the additive is: S11: irradiating the cerium oxide in a proton irradiation box for 1-2 hours at an irradiation power of 350-400 W, and obtaining irradiated cerium oxide after the irradiation is completed; S12: 3-5 parts of nano-carbon powder, 4-7 parts of urea solution, 2-3 parts of silane coupling agent KH550 and 2-3 parts of magnesium oxide are mixed to obtain a carbon solution; The irradiated cerium oxide and the carbon liquid are ultrasonically treated in a weight ratio of 2:5, and then filtered and dried to obtain an additive.

2. The method for preparing hydrogen-rich cooking fuel according to claim 1, characterized in that: The biomass powder is one of straw powder and rice husk powder.

3. The method for preparing hydrogen-rich cooking fuel according to claim 1, characterized in that: The mass fraction of the yttrium nitrate solution is 2 to 5%.

4. The method for preparing hydrogen-rich cooking fuel according to claim 1, characterized in that: The immersion speed for the full immersion is 500-700 r / min, and the immersion is for 1 hour; the stirring speed for the stirring treatment is 450-500 r / min, and the stirring is for 20 minutes.

5. The method for preparing hydrogen-rich cooking fuel according to claim 1, characterized in that: The mass fraction of the urea solution is 7-10%.

6. The method for preparing hydrogen-rich cooking fuel according to claim 1, characterized in that: The ultrasonic treatment was performed at an ultrasonic power of 500-700W for 1 hour.