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Modified fuel oil and production thereof

A technology for fuel oil and modification, which is used in fuels, liquid carbon-containing fuels, petroleum industry, etc., and can solve the problems of difficult industrialized large-scale production, clogging of fuel injection nozzles, and excessive pollutant emissions.

Inactive Publication Date: 2006-03-15
北京信中联合科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, heavy oil cannot be directly burned on diesel boilers for the following reasons: first, the viscosity of heavy oil is much higher than that of diesel oil, and the heavy oil must be heated to raise its temperature to a level suitable for atomization. The temperature before entering the nozzle is generally at 100 Between -140°C, this requires oil tanks and pipelines to have heat-tracing facilities, but the general diesel combustion system does not have heat-tracing facilities, so it is difficult to transport and atomize; second, heavy oil contains more residual carbon and asphaltenes , colloid and mechanical impurities, their existence will easily lead to clogging of filter screens and fuel injectors, as well as insufficient combustion, resulting in excessive pollutant emissions
[0005] People used to simply mix heavy oil and diesel oil to prepare blended oil and burn it on diesel boilers or industrial heating furnaces, but the effect was not ideal
The main disadvantages are poor atomization, insufficient combustion, carbon deposits, high pollutant emissions, and clogging of fuel injectors. Therefore, it is difficult to popularize the mixed oil of simple heavy oil and diesel oil.
[0006] U.S. Patent 4,400,177 reports that the mixture of heavy oil and diesel oil can be prepared into an emulsified fuel with good stability by ultrasonic emulsification technology, but the particle size of water in the emulsified oil and the data on the stability of the emulsified fuel oil are not given
In addition, ultrasonic emulsification technology consumes a lot of energy, making it difficult to achieve industrialized mass production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] (1) Raw materials: heavy oil - imported heavy oil No. 180,

[0068] Domestic No. 0 diesel oil,

[0069] tap water.

[0070] (2) Ingredients formula (weight, tons):

[0071] No. 180 heavy oil-45,

[0072] Diesel No. 0 - 45,

[0073] Water - 10.

[0074] (3) Material flow rate (kg / hour):

[0075] Heavy oil - 1800, diesel - 1800, water - 400.

[0076] (4) Material temperature (°C):

[0077] Heavy oil - 50, diesel - 50, water - 50.

[0078] (5) Equipment: mixing ultrafine grinder (Shanghai Fine Powder Dissolution Machinery Equipment Co., Ltd., CN01109394.3).

[0079] (6) Preparation step: send No. 180 heavy oil and water into the above-mentioned grinding and emulsifying machine at the same time according to the above temperature and flow rate with a liquid delivery pump, and carry out grinding and emulsification to make emulsified heavy oil. Then the diesel oil and the prepared emulsified heavy oil are simultaneously sent to the next grinding and ...

Embodiment 2

[0093] (1) raw material: heavy oil is with embodiment 1, and diesel oil is with embodiment 1, and water is with embodiment 1. Emulsifiers - Polyoxyethylene Lauryl Ether and Sorbitan Tristearate.

[0094] (2) Raw material formula (weight, ton): heavy oil-42.5, diesel oil-42.5, water-15. The dosage of the emulsifier is 0.3% of the weight of the modified fuel oil (the ratio of the two emulsifiers is 50:50).

[0095] (3) Raw material flow rate (kg / hour): heavy oil-1700, diesel-1700, water-600.

[0096] (4) Raw material temperature (°C): same as Example 1.

[0097] (5) Grinding and emulsifying equipment: the same as in Example 1.

[0098](6) Preparation procedure: first mix the emulsifier with water to make a mixed solution with an emulsifier concentration of 2%, then mix the mixed solution of the emulsifier and water with heavy oil to grind and emulsify to make emulsified heavy oil, emulsified heavy oil It is then mixed with diesel oil and ground to prepare modified fuel oil. ...

Embodiment 3

[0111] (1) Raw material: heavy oil-import No. 180 low-sulfur heavy oil (measured sulfur content 0.8%), diesel oil, water are the same as embodiment 1, without emulsifier.

[0112] Desulfurizer - active superfine light calcium carbonate.

[0113] (2) Raw material formula (weight, ton): heavy oil-36, diesel oil-54, water-10. The dosage of calcium-containing desulfurizer is controlled so that the stoichiometric ratio of calcium to sulfur in oil is 1.5 to 1.

[0114] (3) Material flow rate (kg / hour): heavy oil-1440, diesel-2160, water-400.

[0115] (4) Material temperature: heavy oil, diesel oil, water -80°C, calcium carbonate - room temperature.

[0116] (5) emulsification equipment: with embodiment 1.

[0117] (6) Preparation procedure: first prepare modified fuel oil without desulfurizing agent according to the procedure in Example 1, then add desulfurizing agent and grind it twice to prepare modified fuel oil containing desulfurizing agent.

[0118] (7) Product indicators ...

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PUM

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Abstract

A modified fuel oil and its production are disclosed. The fuel oil consists of heavy oil 10-70 proportion, diesel oil 30-90 proportion and water which exist in water drop form and grain size<micron. It has no pollution, full burn, low cost, excellent stability and atomization effect.

Description

technical field [0001] The invention relates to the fields of environmental protection and fuel processing, and more specifically relates to a modified fuel oil and a production method thereof. Background technique [0002] Diesel is an important fuel. Due to its high calorific value and ease of use, it is widely used as fuel for small and medium boilers, heating furnaces and small and medium industrial kilns in addition to being used as fuel for vehicle and ship engines. The consumption is very large. However, the price of diesel oil is relatively high, especially in recent years, the price of oil has been high, and the price of diesel oil has also risen, which has greatly increased the cost of enterprises. Therefore, reducing fuel costs has become an urgent goal for people. [0003] Heavy oil is a kind of widely used liquid fuel. It mainly comes from the residual oil after petroleum refining, which is blended by adding an appropriate amount of light oil. It is used as fuel...

Claims

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Application Information

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IPC IPC(8): C10L1/04
Inventor 张景云王力民
Owner 北京信中联合科技发展有限公司