Bio-additive for heavy oils, which comprises rapeseed oil methyl esters, surfactants, diluents and metal oxides, and use thereof for reducing polluting emissions and as a combustion efficiency bio-enhancer for heavy oils

Abstract

The present invention relates to a bioadditive for heavy oils that serves to reduce polluting emissions and bio-enhancer of the combustion performance for heavy oils, which comprises methyl esters of raps oil, also called raps biodiesel, in the range of up to 80% v/v, surfactants in the range of up to 80% v/v, diluents in the range of up to 20% v/v and metal oxides between 0.1-5 g/L.

Claims

1. A bioadditive for heavy oils that reduces polluting emissions and bio-enhancer of the combustion performance for heavy oils, comprising methyl esters of raps oil (raps biodiesel), in the range of 60% to 80% v/v, surfactant in the range of up to 20% v/v, acetone in the range of up to 20% v/v, and metal oxide between 0.1-5 g/L.

2. The bioadditive of claim 1, wherein the surfactant used is acetone or an alcohol.

3. The bioadditive of claim 2, wherein the alcohol is selected from the group consisting of methanol, ethanol, propanol, butanol, and ethyl alcohol.

4. The bioadditive according to claim 1, wherein the metal oxide is selected from the group consisting of manganese oxide, magnesium oxide, calcium oxide, and copper oxide.

5. The bioadditive of claim 1, wherein the raps biodiesel is 60% v/v, the surfactant is 20% v/v, and the metal oxide manganese oxide is 1 g/L.

6. The bioadditive of claim 1, wherein the raps biodiesel is 60% v/v, the surfactant is 20% v/v, acetone is 20% v/v and the metal oxide manganese oxide is 1 g/L.

Description

DESCRIPTION OF THE FIGURES

(1) FIG. 1 shows the results of the particulate material emission (PM10) from the operation of a saturated steam boiler burning at medium power with the application of the bioadditive of the present invention, with a fuel consumption of approximately 400 kg/h, an injection rate of approximately 4.4 L/h and a sampling time of 1.5 hours.

(2) It is clearly observed that the additive of the invention allows reducing particulate matter (PM10) contaminating emissions from 134.2 mg/m.sup.3 to 73.79 mg/m.sup.3 (45% reduction) and that also using the bioadditive at 1% in the combustion of Fuel Oil No. 6, 179 Kg of CO.sub.2 per ton of this combusted oil are not emitted.

(3) FIG. 2 shows the results of the emission of carbon monoxide (per 100 kg of fuel) from the operation of a saturated steam boiler burning at medium power with the application of the bioadditive of the present invention, with a fuel consumption of approximately 400 kg/h, an injection rate of approximately 4.4 L/h and a sampling time of 1.5 hours.

(4) It is clearly observed that the additive of the invention allows reducing carbon monoxide contaminating emissions from 19.98 ppm/100 kg to 5.212 ppm/100 kg (74% reduction) and that also using the bioadditive at 1% in the combustion of Fuel Oil No. 6, 179 Kg of CO.sub.2 per ton of this combusted oil are not emitted.

(5) FIG. 3 shows the results of the particulate material emission (PM10) from the operation of a saturated steam boiler burning at medium power with the application of the bioadditive of the present invention compared to the application of a commercial additive (LUBRIZOL), with a fuel consumption of approximately 400 kg/h, an injection rate of approximately 4.4 L/h and a sampling time of 1.5 hours for both cases.

(6) It is clearly observed that the additive of the invention has an improved result in the reduction of particulate matter (PM10) contaminating emissions with respect to the use of a commercial additive such as LUBRIZOL. The particulate material emission in the combustion of Fuel Oil No. 6 using LUBRIZOL was 243.8 mg/m.sup.3 while the particulate material emission in the same combustion of Fuel Oil No. 6 using the bioadditive of the present invention was 230.91 mg/m.sup.3, it is important to note that in addition to using the bioadditive at 1% in the combustion of Fuel Oil No. 6, 11 kg of CO.sub.2 per ton of this combusted oil are not emitted due to its renewable character.

EXAMPLES OF APPLICATION

Example 1

(7) It was studied the particulate material emission (PM10) from the operation of a saturated steam boiler burning at medium power with the application of the bioadditive of the present invention, with a fuel consumption of approximately 400 kg/h, an injection rate of approximately 4.4 L/h and a sampling time of 1.5 hours.

(8) The composition used for this test was 60% of raps Biodiesel, 20% of surfactant ethanol, 20% of acetone diluent and 1 g/L of manganese oxide. (A-60-20-20-1). About 1% of A-60-20-20-1 was added to Fuel Oil No. 6 to perform the comparative tests.

(9) FIG. 1 shows the difference between the emission of PM10 from the Fuel Oil No. 6 containing the bioadditive of the present invention versus the pure Fuel Oil No. 6. It is clearly observed a 45% decrease in PM10 emissions compared to pure fuel.

Example 2

(10) It was studied the emission of carbon monoxide from the operation of a saturated steam boiler burning at medium power with the application of the bioadditive of the present invention, with a fuel consumption of approximately 400 kg/h, an injection rate of approximately 4.4 L/h and a sampling time of 1.5 hours.

(11) The composition used for this test was 60% of raps Biodiesel, 20% of surfactant ethanol, 20% of acetone diluent and 1 g/L of manganese oxide. (A-60-20-20-1). It was added about 1% of A-60-20-20-1 to Fuel Oil No. 6 to perform the comparative tests.

(12) FIG. 2 shows the difference between the emission of carbon monoxide from Fuel Oil No. 6 containing the bioadditive of the present invention versus the pure Fuel Oil No. 6. A great performance has been demonstrated, reducing the carbon monoxide emissions by 74% compared to pure fuel.

Example 3

(13) It was studied the emission of particulate material from the operation of a saturated steam boiler burning at medium power with the application of the commercial additive LUBRIZOL versus the application of the bioadditive of the present invention, in a saturated steam boiler used at 4762 kW of power that operates with Fuel Oil No. 6.

(14) The composition used for this comparative test was 61.9% of raps Biodiesel, 23.81% of surfactant ethanol, 14.29% of acetone diluent and 0.5 g/L of manganese oxide. (A-60-20-20-1). It was added about 1% of A-60-20-20-1 and also 1% of commercial additive LUBRIZOL to Fuel Oil No. 6, to perform the comparative tests.

(15) FIG. 3 shows the difference between the emission of particulate material of Fuel Oil No. 6 containing the bioadditive of the present invention versus the Fuel Oil No. 6 containing the commercial additive LUBRIZOL. It has been demonstrated a better performance of the bioadditive, reducing carbon monoxide emissions by 5% compared to the results achieved by the commercial additive.