Hydrogen-rich fuel oil and preparation method thereof

Abstract

The invention discloses hydrogen-rich fuel oil and a preparation method thereof.The hydrogen-rich fuel oil is prepared by taking waste tire pyrolysis oil, ethylene tar and a hydrogen-rich compound in a specific proportion as raw materials through step-by-step stirring and mixing at normal temperature and normal pressure, the tire pyrolysis oil is subjected to desulfurization and dechlorination refining treatment, the hydrogen-rich compound is composed of industrial distilled water, OP10, aviation kerosene and the like, and the hydrogen-rich compound is prepared from the raw materials including the raw materials including the waste tire pyrolysis oil, the ethylene tar and the hydrogen-rich compound. The fuel oil has excellent physical and chemical properties, the calorific value reaches 9000-9500 kcal / kg, the density is 0.97-0.99 g / cm < 3 >, the sulfur content is smaller than or equal to 0.2%, and the flash point is larger than or equal to 65 DEG C. Compared with the traditional fuel, the hydrogen-rich fuel oil disclosed by the invention has the advantages that the sulfur content is obviously reduced, and the emission of SO2 and NOx is reduced; waste resources are used as raw materials, so that the raw material and tail gas treatment cost is greatly reduced; a normal-temperature and normal-pressure one-step synthesis process is adopted, the energy consumption is low, the fuel is adaptive to existing combustion equipment, the fuel has environmental protection property, economical efficiency and high calorific value, and an efficient and clean alternative fuel solution is provided for the high-energy-consumption industry.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel oil, and specifically refers to a hydrogen-rich fuel oil and a preparation method thereof. Background Art

[0002] Currently, high-energy-consuming industries are facing strict environmental protection emission standards (such as SO2 ≤ 50mg / m 3 , NOx ≤ 100mg / m 3 ), and traditional fossil fuels have defects such as high sulfur content, low combustion efficiency, and high tail gas treatment costs. Existing biofuels are environmentally friendly but have problems such as unstable calorific value and easy deterioration during storage. Although waste tire / plastic pyrolysis oil can achieve resource recycling, it is difficult to be directly used as industrial fuel due to its high sulfur content (0.5 - 1.5%) and complex components. Existing desulfurization processes mostly adopt post-treatment methods, resulting in a 30 - 50% increase in cost. At the same time, conventional combustion technologies generate a high amount of nitrogen oxides and require an additional SCR denitration device. There is an urgent need to develop an alternative fuel with environmental protection, economy, and high calorific value. Summary of the Invention

[0003] (I) Technical Problem

[0004] The present invention provides a hydrogen-rich fuel oil using waste resources as raw materials and a preparation method thereof, aiming to solve the technical problems of high fuel costs, excessive pollutant emissions, and insufficient environmental protection performance of traditional fuels in high-energy-consuming enterprises.

[0005] (II) Technical Content

[0006] To solve the above technical problems, the technical solution of the present invention is: a hydrogen-rich fuel oil is made from the following raw materials in parts by weight: 30 - 40 parts of tire pyrolysis oil, 35 - 45 parts of ethylene tar, and 20 - 30 parts of hydrogen-rich compound; the hydrogen-rich compound is composed of 180 - 250 parts of industrial distilled water, 1 - 2 parts of OP10, 2 - 3 parts of aviation kerosene, 1 - 3 parts of propylene glycol, 1 - 2 parts of alkyl vinyl ether, and 1 - 2 parts of cerium nitrate.

[0007] Further, the tire pyrolysis oil is a refined oil obtained by thermal pyrolysis of waste tires and subjected to desulfurization and dechlorination treatment, with a sulfur content ≤ 0.2%.

[0008] Further, the fuel oil has the following physical and chemical indexes: calorific value 9000 - 9500kcal / kg, density 0.97 - 0.99g / cm 3 , flash point ≥ 65°C, and sulfur content ≤ 0.2%.

[0009] Further, when the fuel oil burns, it needs to be combined with an oxygen-enriched combustion system, atomized with 4 - 5kg of compressed gas, and the furnace temperature ≥ 800°C.

[0010] On the other hand, the present invention provides a method for preparing a hydrogen-rich fuel oil, comprising the following steps:

[0011] S1. Prepare a hydrogen-rich compound: Mix industrial distilled water, OP10, aviation kerosene, propylene glycol, alkyl vinyl ether, and cerium nitrate according to the ratio, and stir for 20 - 40 minutes;

[0012] S2. Mix the tire pyrolysis oil, ethylene tar, and the hydrogen-rich compound obtained in step S1 at normal temperature and pressure, and stir for 30 - 60 minutes.

[0013] Further, in step S2, the raw material ratio is 40 parts of tire pyrolysis oil, 40 parts of ethylene tar, and 20 parts of hydrogen-rich compound.

[0014] Further, in step S1, the raw material ratio of the hydrogen-rich compound is 193 parts of industrial distilled water, 1.08 parts of OP10, 2.1 parts of aviation kerosene, 1.8 parts of propylene glycol, 1.02 parts of alkyl vinyl ether, and 1 part of cerium nitrate.

[0015] (III) Technical effects

[0016] The advantages of the present invention compared with the prior art are as follows:

[0017] 1. Environmental protection advantages: The sulfur content ≤ 0.2%, which is significantly reduced compared with traditional heavy oil, and the SO2 emission reduction effect is remarkable; the hydrogen-rich compound makes the combustion more complete, and the NOx generation amount is reduced.

[0018] 2. Economy: The raw material cost is reduced (using a large amount of waste resources), and the exhaust gas treatment cost is saved.

[0019] 3. Performance advantages: The calorific value reaches 9800 kcal / kg, and the combustion residue is small.

[0020] 4. Storage advantages: There is no precipitation during long-term storage, no anti-corrosion treatment is required, and the property can be restored by cyclic stirring.

[0021] 5. Process innovation: Synthesized by a one-step method at normal temperature and pressure, and the energy consumption is significantly reduced compared with the traditional pyrolysis oil refining process.

[0022] 6. Application advantages: It is compatible with existing combustion equipment, and clean combustion can be achieved through the transformation of the oxygen-enriched combustion system.

[0023] 7. Complete combustion: The hydrogen-rich fuel forms an oil-in-water emulsion, and the hydrogen hydroxide compound produces micro-explosion combustion at high temperature. Cerium nitrate is a metal catalyst that can have a better catalytic effect with acidic fuel oil and hydrogen hydroxide compound. The hydrogen hydroxide compound (distilled water component) in this hydrogen-rich fuel oil does not reduce the combustion calorific value when burning, but is equal to or greater than the calorific value of the original fuel oil. The explosion combustion will make the fire fiercer and the combustion more complete. Specific embodiments

[0024] The present invention will be further described in detail below in conjunction with embodiments.

[0025] Embodiment 1

[0026] 1. Raw material preparation

[0027] Tire pyrolysis oil: Take 30 parts by weight of the refined oil obtained from the thermal pyrolysis of waste tires and subjected to desulfurization and dechlorination treatment, with a sulfur content of 0.18%.

[0028] Ethylene tar: Prepare 35 parts by weight of ethylene tar.

[0029] Hydrogen-rich compound: Mix the raw materials according to the ratio of 200 parts by weight of industrial distilled water, 1 part by weight of OP10, 2 parts by weight of aviation kerosene, 2 parts by weight of propylene glycol, 1 part by weight of alkyl vinyl ether, and 1 part by weight of cerium nitrate.

[0030] 2. Preparation steps

[0031] Prepare hydrogen-rich compound: Put the hydrogen-rich compound raw materials in the above ratio into a stirring container, use a propeller stirrer, control the rotation speed at 200 rpm, and stir for 40 minutes to make each component fully mixed and uniform.

[0032] Mix raw materials: Put 30 parts by weight of tire pyrolysis oil, 35 parts by weight of ethylene tar and 20 parts by weight of the prepared hydrogen-rich compound into a stirring container at normal temperature and pressure, use a propeller stirrer, maintain the rotation speed at 200 rpm, and stir for 60 minutes to obtain hydrogen-rich fuel oil.

[0033] 3. Performance detection

[0034] Detect the prepared hydrogen-rich fuel oil. Its calorific value is 9500 kcal / kg, density is 0.98 g / cm 3 , flash point is 72 °C, sulfur content is 0.15%, meeting the physical and chemical indexes set by the present invention. When this fuel oil is combined with an oxygen-enriched combustion system and atomized with 4 kg of compressed gas, it burns under the condition of a furnace temperature of 800 °C, and the emissions of SO2 and NOx are significantly lower than the environmental protection standard limits.

[0035] Embodiment 2

[0036] 1. Raw material preparation

[0037] Tire pyrolysis oil: Take 40 parts by weight of the refined oil obtained from the thermal pyrolysis of waste tires and subjected to desulfurization and dechlorination treatment, with a sulfur content of 0.15%.

[0038] Ethylene tar: Prepare 40 parts by weight of ethylene tar.

[0039] Hydrogen-rich compound: Mix the raw materials according to the ratio of 193 parts by weight of industrial distilled water, 1.08 parts by weight of OP10, 2.1 parts by weight of aviation kerosene, 1.8 parts by weight of propylene glycol, 1.02 parts by weight of alkyl vinyl ether, and 1 part by weight of cerium nitrate.

[0040] 2. Preparation steps

[0041] Prepare the hydrogen-rich compound: Put the raw materials of the hydrogen-rich compound into a stirring container, use a propeller stirrer, adjust the rotation speed to 250 rpm, and stir for 40 minutes to fully blend the raw materials.

[0042] Mix the raw materials: Pour 40 parts by weight of tire pyrolysis oil, 40 parts by weight of ethylene tar, and 20 parts by weight of the prepared hydrogen-rich compound into a stirring container at normal temperature and pressure. Use a propeller stirrer to stir at a speed of 250 rpm for 60 minutes to obtain hydrogen-rich fuel oil.

[0043] 3. Performance detection

[0044] After testing, the calorific value of this hydrogen-rich fuel oil reaches 9500 kcal / kg, the density is 0.98 g / cm 3 , the flash point is 72 °C, and the sulfur content is 0.15%. In the oxy-fuel combustion system, when atomized with 4.5 kg of compressed gas and burned at a furnace temperature of 850 °C, the combustion is complete, the emissions of SO2 and NOx in the tail gas are far lower than the standards, and the combustion residue is small.

[0045] Example 3

[0046] 1. Raw material preparation

[0047] Tire pyrolysis oil: Take 40 parts by weight of refined oil obtained from the thermal pyrolysis of waste tires and treated by desulfurization and dechlorination, and the sulfur content is 0.12%.

[0048] Ethylene tar: Prepare 45 parts by weight of ethylene tar.

[0049] Hydrogen-rich compound: Mix the raw materials according to the ratio of 250 parts by weight of industrial distilled water, 2 parts by weight of OP10, 3 parts by weight of aviation kerosene, 3 parts by weight of propylene glycol, 2 parts by weight of alkyl vinyl ether, and 2 parts by weight of cerium nitrate.

[0050] 2. Preparation steps

[0051] Prepare the hydrogen-rich compound: Place the raw materials of the hydrogen-rich compound in a stirring container, use a propeller stirrer, control the rotation speed at 300 rpm, and stir for 40 minutes to ensure uniform mixing.

[0052] Blended raw materials: Add 40 parts by weight of tire pyrolysis oil, 45 parts by weight of ethylene tar, and 30 parts by weight of the prepared hydrogen-rich compound into a stirring container at normal temperature and pressure. Use a propeller stirrer to stir at a speed of 300 rpm for 60 minutes to obtain hydrogen-rich fuel oil.

[0053] 3. Performance testing

[0054] Testing of the hydrogen-rich fuel oil shows that its calorific value is as high as 9300 kcal / kg, density is 0.97 g / cm 3 , flash point is 70 °C, and sulfur content is 0.12%. In an oxygen-rich combustion system, atomized with 5 kg of compressed gas and burned at a furnace temperature of 900 °C, it not only has high combustion efficiency, but also has extremely low emissions of SO2 and NOx, far superior to environmental protection standards. At the same time, no precipitation occurs during the long-term storage of the fuel oil, and its properties recover well after cyclic stirring.

[0055] The above describes the present invention and its implementation manners. Such description is not restrictive, and what is shown in the embodiments is only one of the implementation manners of the present invention. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural manners and embodiments to the technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A hydrogen-rich fuel oil, characterized in that: Made from the following raw materials in parts by weight: 30-40 parts of tire pyrolysis oil, 35-45 parts of ethylene tar, 20-30 parts of hydrogen-rich compound; The hydrogen-rich compound is composed of 180-250 parts of industrial distilled water, 1-2 parts of OP10, 2-3 parts of aviation kerosene, 1-3 parts of propylene glycol, 1-2 parts of alkyl vinyl ether and 1-2 parts of cerium nitrate.

2. The hydrogen-rich fuel oil according to claim 1, characterized in that: The tire pyrolysis oil is refined oil obtained by thermal pyrolysis of waste tires and subjected to desulfurization and dechlorination treatments, with a sulfur content of ≤0.2%.

3. The hydrogen-rich fuel oil according to claim 1, characterized in that: The fuel oil has the following physical and chemical indicators: calorific value 9000-9500 kcal / kg, density 0.97-0.99 g / cm 3 , flash point ≥65℃, sulfur content ≤0.2%.

4. The hydrogen-rich fuel oil according to claim 1, characterized in that: The fuel oil needs to be used in conjunction with an oxygen-enriched combustion system when burning, using 4-5kg compressed gas for atomization, and the furnace temperature must be ≥800°C.

5. The method for preparing hydrogen-rich fuel oil according to claim 1, comprising the following steps: S1. Preparation of hydrogen-rich compound: mixing industrial distilled water, OP10, aviation kerosene, propylene glycol, alkyl vinyl ether and cerium nitrate according to the proportion, and stirring for 20-40 minutes; S2, mixing tire pyrolysis oil, ethylene tar and the hydrogen-rich compound obtained in step S1 at normal temperature and pressure, and stirring for 30-60 minutes.

6. The preparation method according to claim 5, characterized in that: The raw material ratio in step S2 is 40 parts of tire pyrolysis oil, 40 parts of ethylene tar, and 20 parts of hydrogen-rich compound.

7. The preparation method according to claim 5, characterized in that: The raw material ratios of the hydrogen-rich compound in step S1 are 193 parts of industrial distilled water, 1.08 parts of OP10, 2.1 parts of aviation kerosene, 1.8 parts of propylene glycol, 1.02 parts of alkyl vinyl ether, and 1 part of cerium nitrate.