阅读说明：本技术 一种低硫重质船用燃料油及其制备方法 (Low-sulfur heavy bunker fuel oil and preparation method thereof ) 是由 李海燕 许金山 许晓斌 张艳 刘爱华 何芬红 刘文波 于 2018-09-04 设计创作，主要内容包括：一种低硫重质船用燃料油及其制备方法,属于重质燃料油技术领域。其特征在于,包括以下重量份数的原料：渣油40~65份,催化油浆5~15份,苯乙烯焦油5~20份,乙烯焦油5~20份,柴油5~20份,添加剂OP-10 0.2~1份,添加剂AES 0.1~0.5份。制备步骤：1)先后加入苯乙烯焦油与柴油,添加剂OP-10、添加剂AES,渣油,催化油浆中速搅拌混合物；然后加入乙烯焦油高速搅拌即得。本发明解决了苯乙烯焦油与其他油品混合不匀,容易产生絮状物,在使用的过程中容易结焦的问题。(A low-sulfur heavy bunker fuel oil and a preparation method thereof belong to the technical field of heavy fuel oil. The composite material is characterized by comprising the following raw materials in parts by weight: 40-65 parts of residual oil, 5-15 parts of catalytic slurry oil, 5-20 parts of styrene tar, 5-20 parts of ethylene tar, 5-20 parts of diesel oil, 100.2-1 parts of an additive OP-100.1-0.5 part of an additive AES. The preparation method comprises the following steps: 1) adding styrene tar, diesel oil, additive OP-10, additive AES, residual oil and catalytic slurry oil in sequence, and stirring the mixture at a medium speed; then adding ethylene tar and stirring at high speed to obtain the final product. The invention solves the problems that the styrene tar is not uniformly mixed with other oil products, floccules are easy to generate and coking is easy to occur in the using process.)

1. The low-sulfur heavy marine fuel oil is characterized by comprising the following raw materials in parts by weight: 40-65 parts of residual oil, 5-15 parts of catalytic slurry oil, 5-20 parts of styrene tar, 5-20 parts of ethylene tar, 5-20 parts of diesel oil, 100.2-1 parts of an additive OP-100.1-0.5 part of an additive AES.

2. The low sulfur heavy bunker fuel oil of claim 1, wherein: said oil residueThe hydrogenated residue has a density of 880 kg/m at 20 DEG C³~980kg/m³The flash point is higher than 130 ℃, and the content of aluminum silicon is less than 30 mg/kg.

3. The low sulfur heavy bunker fuel oil of claim 1, wherein: the density of the catalytic slurry oil at 20 ℃ is 1000 kg/m³~1200kg/m³The flash point is higher than 130 ℃, and the content of aluminum silicon is 200 mg/kg-500 mg/kg; the addition amount of the catalytic slurry oil is 8-12 parts by weight.

4. The low sulfur heavy bunker fuel oil of claim 1, wherein: the density of the styrene tar at 20 ℃ is 950 kg/m³~1050kg/m³The flash point is 20-80 ℃, and the content of aluminum silicon is less than 20 mg/kg.

5. The low sulfur heavy bunker fuel oil of claim 1, wherein: the density of the ethylene tar at 20 ℃ is 980 kg/m³~1080kg/m³The flash point is 20-80 ℃, and the content of aluminum silicon is less than 20 mg/kg.

6. The low sulfur heavy bunker fuel oil of claim 1, wherein: the diesel oil is one or a mixture of more than two of catalytic diesel oil, ethylene diesel oil and coking diesel oil, and the density at 20 ℃ is 920 kg/m³~1020kg/m³The flash point is more than 45 ℃, and the content of aluminum silicon is less than 30 mg/kg.

7. The method for preparing the low-sulfur heavy bunker fuel oil as claimed in any one of claims 1 to 6, wherein the method comprises the following steps: the method comprises the following steps:

1) weighing styrene tar and diesel oil according to the weight parts, mixing, and stirring at a medium speed for 20-30 min to obtain a mixture A;

2) adding an additive OP-10 and an additive AES into the mixture A obtained in the step 1), and continuously stirring at a medium speed for 20-30 min to obtain a mixture B;

3) adding residual oil into the mixture B obtained in the step 2), heating to 30-40 ℃, and continuously stirring at medium speed for 20-30 min to obtain a mixture C;

4) adding catalytic slurry oil into the mixture C obtained in the step 3), heating to 50-60 ℃, and continuously stirring at medium speed for 20-30 min to obtain a mixture D;

5) cooling the mixture D in the step 4) to room temperature, adding ethylene tar, and stirring at high speed for 30-60 min to obtain the catalyst.

8. The method of claim 7, wherein the low sulfur heavy bunker fuel oil is prepared by: the stirring speed of the medium-speed stirring in the steps 1) to 4) is 80 rpm to 150 rpm.

9. The method of claim 7, wherein the low sulfur heavy bunker fuel oil is prepared by: the stirring speed of the high-speed stirring in the step 5) is 800-1500 rpm.

10. The method of claim 7, wherein the low sulfur heavy bunker fuel oil is prepared by: heating to 34-36 ℃ in the step 3), and heating to 54-55 ℃ in the step 4).

Technical Field

A low-sulfur heavy bunker fuel oil and a preparation method thereof belong to the technical field of heavy fuel oil.

Background

The existing marine fuel oil standard GB17411-2015 specifies that when a ship sails in a general offshore area, the sulfur content of heavy marine fuel oil should not exceed 3.5%, and the specific requirements of various ports are met; with the increasing problem of air pollution, the reduction of the emission of pollutants from ships is urgent, and measures for reducing the emission of pollutants from ships include changing to low-sulfur fuel oil, increasing the post-treatment devices of ships, reducing the ship speed, using alternative fuels, and establishing emission control areas, wherein the use of low-sulfur fuel oil is the most effective and simple and feasible measure for reducing the emission of pollutants.

The development of marine fuel oil for ships is consistent with that of vehicle fuel oil, and the development is towards low-sulfur and low-carbon emission. The sulfur content of the heavy bunker fuel oil should not exceed 0.50 percent when the ship sails in a general region on the sea in 1 month and 1 day after 2020.

The sulfur content control index of the heavy bunker fuel oil produced in the current market is mostly 3.5%, which not only pollutes the environment, but also prohibits the use of the heavy bunker fuel oil with the sulfur content of more than 0.5% from 2020 along with the implementation of the sulfur limit policy, so that the heavy bunker fuel oil with the low sulfur content is needed to be provided.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: overcomes the defects of the prior art, and provides the low-sulfur heavy marine fuel oil which has simple process, energy conservation, convenient operation and low consumption of catalytic slurry oil with low added value and the preparation method thereof.

The technical scheme adopted by the invention for solving the technical problems is as follows: the low-sulfur heavy marine fuel oil is characterized by comprising the following raw materials in parts by weight: 40-65 parts of residual oil, 5-15 parts of catalytic slurry oil, 5-20 parts of styrene tar, 5-20 parts of ethylene tar, 5-20 parts of diesel oil, 0.2-1 part of additive OP-10 (polyoxyethylene octyl phenol ether-10) and 0.1-0.5 part of additive AES (fatty alcohol polyoxyethylene ether sodium sulfate).

The invention aims to provide low-sulfur heavy bunker fuel oil which has the characteristic of low sulfur content and meets increasingly strict environmental protection requirements. The invention adds a proper amount of additive OP-10 and AES, which solves the problems of uneven mixing of the styrene tar and other oil products, easy generation of floccules and easy coking in the using process. The dosage of the additive is too low, the styrene tar and other oil products can still be mixed unevenly, floccules are easy to generate, and coking is easy to occur in the using process; if the amount of the additive is too high, the density of the fuel oil is increased, and the quality of the fuel oil is affected.

The residual oil is hydrogenated residual oil, and the density at 20 ℃ is 880 kg/m³~980kg/m³The flash point is higher than 130 ℃, and the content of aluminum silicon is less than 30 mg/kg. The physical and chemical properties of the preferable residual oil can be better matched with other components in the invention, and the fuel oil performance of the obtained fuel oil is better.

The density of the catalytic slurry oil at 20 ℃ is 1000 kg/m³~1200kg/m³The flash point is higher than 130 ℃, and the content of aluminum silicon is 200 mg/kg-500 mg/kg; the addition amount of the catalytic slurry oil is 8-12 parts by weight. The physicochemical property of the optimized catalytic slurry oil can be better matched with other components in the invention, and the fuel oil property of the obtained fuel oil is better.

The density of the styrene tar at 20 ℃ is 950 kg/m³~1050kg/m³The flash point is 20-80 ℃, and the content of aluminum silicon is less than 20 mg/kg. The physical and chemical properties of the optimized styrene tar can be better matched with other components in the invention, the adaptability to the additive is better, and the fuel oil performance of the obtained fuel oil is better.

The density of the ethylene tar at 20 ℃ is 980 kg/m³~1080kg/m³The flash point is 20-80 ℃, and the content of aluminum silicon is less than 20mgIn terms of/kg. The physical and chemical properties of the optimized ethylene tar can be better matched with other components in the invention, and the fuel oil performance of the obtained fuel oil is better.

The diesel oil is one or a mixture of more than two of catalytic diesel oil, ethylene diesel oil and coking diesel oil, and the density at 20 ℃ is 920 kg/m³~1020kg/m³The flash point is more than 45 ℃, and the content of aluminum silicon is less than 30 mg/kg. The physicochemical property of the optimized diesel oil can be better matched with other components in the invention, and the fuel oil property of the obtained fuel oil is better.

The preparation method of the low-sulfur heavy marine fuel oil is characterized by comprising the following steps: the method comprises the following steps:

1) weighing styrene tar and diesel oil according to the weight parts, mixing, and stirring at a medium speed for 20-30 min to obtain a mixture A;

2) adding an additive OP-10 and an additive AES into the mixture A obtained in the step 1), and continuously stirring at a medium speed for 20-30 min to obtain a mixture B;

3) adding residual oil into the mixture B obtained in the step 2), heating to 30-40 ℃, and continuously stirring at medium speed for 20-30 min to obtain a mixture C;

4) adding catalytic slurry oil into the mixture C obtained in the step 3), heating to 50-60 ℃, and continuously stirring at medium speed for 20-30 min to obtain a mixture D;

5) cooling the mixture D in the step 4) to room temperature, adding ethylene tar, and stirring at high speed for 30-60 min to obtain the catalyst.

According to the preparation method, all materials are mixed according to a specific sequence, so that the materials can be fully mixed, and the heavy bunker fuel oil with excellent combustion performance is obtained.

The stirring speed of the medium-speed stirring in the steps 1) to 4) is 80 rpm to 150 rpm. The preferred stirring speed ensures the mixing efficiency and the mixing effect, and avoids the occurrence of flocculation.

The stirring speed of the high-speed stirring in the step 5) is 800-1500 rpm. The preferred stirring speed ensures the mixing efficiency and the mixing effect, and avoids the occurrence of flocculation.

Heating to 34-36 ℃ in the step 3), and heating to 54-55 ℃ in the step 4). The optimal mixing temperature can ensure the mixing efficiency and the mixing effect, avoid flocculation and obtain the heavy bunker fuel oil with excellent combustion performance.

Before mixing oil materials, respectively measuring the performance indexes of hydrogenated residual oil, catalytic cracking slurry oil, styrene tar, ethylene tar and diesel oil, comparing with the standard of marine fuel oil, and finding out the index with great influence on the quality of the oil products. And (3) performing blending test on the raw oil until indexes with larger influence on the blended oil meet the marine fuel oil standard, and determining the blending proportion of each raw oil by comprehensively considering the economic benefit.

Compared with the prior art, the invention has the beneficial effects that: the low-sulfur heavy bunker fuel oil introduces a large proportion of low added value product catalytic slurry oil into raw materials, reduces the production cost of bunker fuel oil, has low price of ethylene tar and styrene tar, low sulfur content, particularly has very obvious low-sulfur performance of the styrene tar, reduces the sulfur content of the bunker fuel oil, meets the requirement of environmental protection, has competitiveness in economy, improves the fluidity of the heavy bunker fuel oil by adding diesel oil, and solves the problem of uneven mixing of the styrene tar and other oil products by adding additives. The preparation method firstly adds the catalytic slurry oil with low utilization value and low price to the maximum extent on the premise of meeting the technical index of the marine fuel oil and the sulfur content of less than 0.5 percent, thereby reducing the production cost.

Detailed Description

The invention is further illustrated by the following specific examples, of which example 1 is the best mode of practice.