CN1222561A - Composite heavy oil comburant and its preparation - Google Patents

Abstract

The combustion adjuvant is one kind of viscous liquid prepared by using rare earth nitrate, magnesium naphthenate, ferric naphthenate, calcium naphthenate, oil solvent, magnesium stearate, barium stearate, calcium stearate and dispersant as raw material. It has excellent heavy oil saving effect and low consumption, is easy to use and non-toxic and can reduce environmental pollution and corrosion of combustion equipment.

Description

A kind of composite heavy oil comburant and preparation method

The present invention relates to a kind of composite heavy oil comburant and preparation method.

Heavy oil is industrial furnace, boiler of power plant, kiln, the widely used fuel of thermal powerplant such as peculiar to vessel, and it produces a large amount of black smokes in combustion processes, cause atmospheric pollution, in equipment, also produce serious carbon deposit, carbon removal difficulty simultaneously, also easily make the sulfur corrosion of equipment low temperature, the corrosion of high temperature vanadium.

The objective of the invention is to exist shortcoming to provide a kind of heavy oil combustion that promotes to reduce the compound combustion adjuvant of soot emissions with deficiency, thereby can improve combustion efficacy, reduce carbon deposit and prevent corrosion in order to overcome above-mentioned prior art.

The present invention also provides this auxiliary agent preparation method.

Purpose of the present invention realizes by following technical proposal:

A kind of composite heavy oil comburant is characterized in that it is prepared from by the following weight proportion raw material:

Rare earth nitrate 5-20 part magnesium naphthenate 5-15 part iron naphthenate 4-10 part calcium naphthenate 3-8 part

Oil solvent 1-5 part Magnesium Stearate 1-5 part barium stearate 0.8-4.5 part calcium stearate 1-5 part

Each raw material preferred weight proportioning of polyisobutenyl succimide 0.08-0.2 part solvent 50-70 part is:

Rare earth nitrate 8-15 part magnesium naphthenate 6-8 part iron naphthenate 6-10 part calcium naphthenate 5-7 part

Oil solvent 3-4 part Magnesium Stearate 1-3 part barium stearate 0.5-2.0 part calcium stearate 1-3 part

Each raw material optimum weight proportioning of polyisobutenyl succimide 0.1-0.15 part solvent 55-65 part is:

6 parts of 7.2 parts of calcium naphthenates of 7.2 parts of iron naphthenates of 10.5 parts of magnesium naphthenates of rare earth nitrate

1 part of 1.5 parts of calcium stearate of 1.31 parts of barium stearates of 3.2 parts of Magnesium Stearates of Oil solvent

61.99 parts of 0.1 part of solvents of polyisobutenyl succimide

Wherein solvent is wherein any one of diesel oil, kerosene, solvent oil; Stearate can be a kind of or any two kinds or three kinds; The also available acetic acid rare earth of rare earth nitrate, carbonated rare earth wherein any one; Oil solvent is the 124 Triazole fatty acid ammonium salt; The interpolation of combustion adjuvant is than the 2-5 ‰ of the weight of oil of attaching most importance to.

The preparation method of combustion adjuvant is characterized in that being undertaken by following step:

A) earlier with 5-10 part magnesium naphthenate, 4-10 part iron naphthenate, 3-8 part calcium naphthenate mixes, and adds 50-70 part solvent, is heated to 60-80 ℃;

B) again 5-20 part rare earth nitrate is added in (a) material temperature control 60-80 ℃;

C) in (b) material, add 1-5 part Oil solvent again, continue to stir until dissolving fully;

D) add 0.08-0.2 part polyisobutenyl succimide again at (c) material, continue to stir;

E) with 1-5 part Magnesium Stearate, 0.8-4.5 part barium stearate, 1-5 part calcium stearate add in (d) material, and stirring and dissolving is product.

It is catalytic center that auxiliary agent of the present invention adopts rare earth nitrate and oil soluble metal salt, naphthenate, stearate all are ignition dopes, particularly the vanadic acid fusing point of rare earth element is very high, fusing point as CeVo4 is 1650 ℃, can prevent barium oxide and vanadate scabbing and corrode to equipment, reduce carbon deposit and dust, the polyisobutenyl succimide is a dispersion agent, it can make the loose carbon removal of carbon deposit easy, Oil solvent is the 124 Triazole fatty acid ammonium salt, and it can make all kinds of solid matters and the solvent better effects if of dissolving each other.Auxiliary agent of the present invention is a kind of thick liquid.

Auxiliary agent of the present invention is through detecting, and its result is as follows:

By metallurgical save energy monitoring station, Hebei province at Beijing Chemical Testing Factory's steam plant 7 ^#Carry out simultaneous test on the fuel oil superheated steam boiler, energy-saving effect is monitored, take the thermal equilibrium mode to measure and calculate, carry out with the method for calculation interim provision with reference to standard GB 10180-88 and Ministry of Metallurgical Industry's boiler heat balance mensuration.

The boiler model is S2S2-2.45/350-2, and heavy oil is moisture 8.85 ‰, density 959.1/kgM ^-3, additive is moisture 12.66 ‰, density 965.0/kgM ^-3, the mode of dosing adds along crude oil pipeline, consumption 3-5 ‰:

The blank doping remarks of main economic and technical indices table 1 sequence number index unit 1 evaporation capacity t/h 14.095 12.798 2 unit consumption of heavy oil kg/t 89.3 81.9 3 hear rate GJ/t 3.233 2.960 4 content of CO in smoke % 0.5 0.0 5 positive balance efficiency % 81.55 89.46 6 anti-balance efficiency % 87.78 92.06 7 rate of economizing gasoline % 8.29

Show that from table 1 measurement result under the condition of the former thermo-efficiency of boiler 81.55%, fuel-economizing reaches 8.29%, content of CO in smoke is to be 0, and the effect that this additive is described is significant.

The industrial experiment result:

At Beijing Chemical Testing Factory's steam plant 7 ^#S2S20-25/350 type oil-firing boiler carries out, and additive mixes adding after diluting with 1: 22 with heavy oil, and blank test and additive effect test comparing result see Table 2:

The blank sample doping of table 2 project sample fuel oil temperature (℃) 85 85 85 fuel pressures (MPa), 2.3 2.3 2.3 additive temperature (℃) 45-55 45-55 additive adds than (‰) 3.5-4 4-4.5 fuel consumption (T) 124.08 6.7849 4.3218 producing steam amount (T) 1392.3 84.7 58.79 unit consumption (Kg/T) 89.12 80.11 73.55 rates of economizing gasoline (%) 10.11 17.47

Conclusion:

1. compare under the situation of 3.5-4 ‰ in the interpolation of this multifunctional efficient heavy oil comburant, compare with blank test, its rate of economizing gasoline is 10.11%.

At this multifunctional efficient with the interpolation of combustion adjuvant than under the situation of 4-4.5 ‰, with its rate of economizing gasoline of blank test comparison be 17.47%.

3. all factors are all taken into account, and it is better than effect when 3.5-4 ‰ to add auxiliary agent, and its average rate of economizing gasoline is 8-12%.

4. during answering used additives, boiler flame is bright, and heavy oil combustion is complete, and chimney is over-emitting black exhaust not, and this heavy oil comburant not only has obvious energy-saving effect, also has tangible environment protecting.

Compared with the prior art the technology of the present invention has following advantage and effect:

A) adopting rare-earth salts and oil soluble metal is catalytic active center, can reach oil-saving effect preferably; Can improve the heavy oil quality, keep burning nozzle and combustion chamber cleaning, reduce greasy filth carbon deposit and ash content, reduce equipment failure;

B) addition is little, is generally 2-5 ‰, and is easy to use;

C) preparation method is simple, raw material is easy to get, nontoxic, safety;

D) reduce environmental pollution, alleviate the corrosion of equipment.

Embodiment 1:

With magnesium naphthenate 7.2kg, iron naphthenate 7.2kg, calcium naphthenate 6kg mixes the back and adds in the 62kg diesel oil solvent, be heated to 60 ℃ ± 5, getting rare earth nitrate 10.5kg again adds in the said mixture material, controlled temperature 80 ℃ ± 5, add 3.0kg 124 Triazole fatty acid ammonium salt then, continue to stir, until dissolving fully, add 0.1kg polyisobutenyl succimide again, get magnesium stearate 1.3kg again, barium stearate 1.5kg calcium stearate 1kg mixes and adds in the above-mentioned material, and stirring and dissolving is additive product of the present invention.

Embodiment 2:

With magnesium naphthenate 15kg, iron naphthenate 10kg, calcium naphthenate 4kg mix the back and add in the 59kg diesel oil solvent, be heated to 70 ℃ ± 5, get rare earth nitrate 5kg again and add in the said mixture material, controlled temperature 75 ℃ ± 5 adds 2.0kg 124 Triazole fatty acid ammonium salt then, continue to stir, until dissolving fully, add 0.15kg polyisobutenyl succimide again, get magnesium stearate 5kg again, barium stearate 4kg calcium stearate 5kg mixes and adds in the above-mentioned material, and stirring and dissolving is additive product of the present invention.

Embodiment 3:

With magnesium naphthenate 5kg, iron naphthenate 4kg, calcium naphthenate 3kg mix the back and add in the 60kg diesel oil solvent, be heated to 80 ℃ ± 5, get rare earth nitrate 20kg again and add in the said mixture material, controlled temperature 80 ℃ ± 5 adds 5.0kg 124 Triazole fatty acid ammonium salt then, continue to stir, until dissolving fully, add 0.2kg polyisobutenyl succimide again, get hard magnesium acetate 1kg again, barium stearate 0.8kg calcium stearate 1kg mixes and adds in the above-mentioned material, and stirring and dissolving is additive product of the present invention.

Embodiment 4:

With magnesium naphthenate 6kg, iron naphthenate 5kg, calcium naphthenate 5kg mixes the back and adds in the 70kg kerosene solvent, be heated to 70 ℃ ± 5, get acetic acid rare earth 6kg again, add in the said mixture material, controlled temperature 70 ℃ ± 5 until dissolving fully, adds 1.0kg 124 Triazole fatty acid ammonium salt then, continue to stir, until dissolving fully, add 0.08kg polyisobutenyl succimide again, get Magnesium Stearate 3kg again, barium stearate 4.5kg mixes and adds in the above-mentioned material, and stirring and dissolving is additive product of the present invention.

Embodiment 5:

With magnesium naphthenate 10kg, iron naphthenate 6kg, calcium naphthenate 8kg mix the back and add in the 56kg solvent oil solvent, be heated to 70 ℃ ± 5, get carbonated rare earth 13kg again, add in the said mixture material, controlled temperature 70 ℃ ± 5, until dissolving fully, add 2.0kg 124 Triazole fatty acid ammonium salt then, continue to stir, until dissolving fully, add 0.1kg polyisobutenyl succimide again, get barium stearate 4.5kg again and mix in the above-mentioned material of adding, stirring and dissolving is additive product of the present invention.

Claims (9)

1, a kind of composite heavy oil comburant is characterized in that it is prepared from by the following weight proportion raw material: rare earth nitrate 5-20 part magnesium naphthenate 5-15 part iron naphthenate 4-10 part calcium naphthenate 3-8 part Oil solvent 1-5 part Magnesium Stearate 1-5 part barium stearate 0.8-4.5 part calcium stearate 1-5 part polyisobutenyl succimide 0.08-0.2 part solvent 50-70 part

2, combustion adjuvant according to claim 1 is characterized in that each raw material preferred weight proportioning is: rare earth nitrate 8-15 part magnesium naphthenate 6-8 part iron naphthenate 6-10 part calcium naphthenate 5-7 part Oil solvent 3-4 part Magnesium Stearate 1-3 part barium stearate 0.5-2.0 part calcium stearate 1-3 part polyisobutenyl succimide 0.1-0.15 part solvent 55-65 part

3, combustion adjuvant according to claim 1 is characterized in that each raw material optimum weight proportioning is: 61.99 parts of 0.1 part of solvents of 1 part of polyisobutenyl succimide of 1.5 parts of calcium stearates of 1.31 parts of barium stearates of 3.2 parts of Magnesium Stearates of 6 parts of Oil solvents of 7.2 parts of calcium naphthenates of 7.2 parts of iron naphthenates of 10.5 parts of magnesium naphthenates of rare earth nitrate

4,, it is characterized in that described solvent is wherein any one of diesel oil, kerosene, solvent oil according to claim 1,2,3 described combustion adjuvants.

5,, it is characterized in that described stearate can be a kind of or any two kinds or three kinds according to claim 1,2,3 described combustion adjuvants.

6, according to claim 1,2,3 described combustion adjuvants, it is characterized in that the also available acetic acid rare earth of rare earth nitrate, carbonated rare earth wherein any one.

7,, it is characterized in that Oil solvent is the 124 Triazole fatty acid ammonium salt according to claim 1,2,3 described combustion adjuvants.

8, according to claim 1,2,3 described combustion adjuvants, it is characterized in that the 2-5 ‰ of the interpolation of combustion adjuvant than the weight of oil of attaching most importance to.

9,, it is characterized in that being undertaken by following step as the preparation method of claim 1,2,3 described combustion adjuvants:

A) earlier with 5-10 part magnesium naphthenate, 4-10 part iron naphthenate, 3-8 part calcium naphthenate mixes, and adds 50-70 part solvent, is heated to 60-80 ℃;

B) again 5-20 part rare earth nitrate is added in (a) material temperature control 60-80 ℃;

C) in (b) material, add 1-5 part Oil solvent again, continue to stir until dissolving fully;

D) add 0.08-0.2 part polyisobutenyl succimide again at (c) material, continue to stir;

E) with 1-5 part Magnesium Stearate, 0.8-4.5 part barium stearate, 1-5 part calcium stearate add in (d) material, and stirring and dissolving is product.