TW201533234A - Coffee biolubricant - Google Patents

Abstract

A coffee biolubricant is disclosed. The coffee biolubricant comprises: 60-70 wt% of mineral oil, 16-20 wt% of coffee biofuel and 14-20% of active agent, wherein the coffee biofuel is extracted from coffee. Therefore the coffee biolubricant can reduce the friction coefficient and the temperature of operating machine parts.

Description

Coffee raw oil

The present invention relates to a lubricating oil, and in particular to a coffee raw oil blended with a coffee green oil.

Conventional lubricating oils include base oils and additives. The base oils are mainly mineral oils, while the additives may contain antifoaming agents, diffusing agents, antioxidants, cleaning agents or rust inhibitors. Lubricate the steam, locomotive engine and various types of machinery to reduce the wear of the parts to reduce the frequency of machine replacement.

The derivative of mineral oil is obtained by distillation and refining. The main component is hydrocarbon, which has a considerable viscosity. It can make the moving interface of the machine produce a film thickness during operation to protect the machine from wear and tear, but Also due to the viscosity of the mineral oil, the friction coefficient of the conventional lubricating oil is increased, and the operating temperature is too high under the long-term running friction of the machine. When the machine is in a high temperature environment for a long time, it is accompanied by the wear and tear of the machine and the service life.

In addition, because mineral oil is extracted from crude oil, nowadays petrochemical energy is increasing due to the increasing population of the earth. Under excessive mining, crude oil is gradually depleting, and the process of refining crude oil will inevitably emit a large amount of carbon dioxide, which will promote the global warming effect. It deteriorates and affects the earth's ecological environment and climate.

In view of this, based on the problem of "higher friction coefficient" and "damage to the environment", it is still necessary to provide an improved lubricating oil to solve the above problem. question.

The main object of the present invention is to provide a coffee raw oil which can reduce the friction coefficient of the conventional lubricating oil by adding the coffee raw oil to reduce the wear of the machine.

Still another object of the present invention is to provide a coffee raw oil which can reduce the addition of mineral oil and reduce the frequency of refining crude oil to avoid environmental hazards.

In order to achieve the foregoing object, the technical means and the efficiencies achievable by the technical method include: a coffee raw lubricating oil comprising: 60-70% by weight of mineral oil, 16~20% of coffee raw oil and 14~20% active agent; wherein the coffee raw oil is oil produced by coffee cracking at a temperature of 400~550 °C.

The coffee biomass lubricating oil of the present invention comprises 65% by weight of mineral oil, 16% of coffee green oil and 19% of active agent.

The coffee raw material lubricating oil of the present invention, wherein the coffee raw oil has a viscosity at 40 ° C of 60 to 70 cSt.

The coffee raw oil of the present invention, wherein the mineral oil is mineral oil, mechanical oil, white oil or paraffin oil.

The coffee raw material lubricating oil of the present invention, wherein the active agent is polyoxyalkylene alkyl ether and sorbitan oleate, and the weight ratio is from 6:1 to 15:10. .

The coffee raw material lubricating oil of the present invention, wherein the coffee raw oil may be subjected to nitrogen treatment during cracking to remove impurities in the coffee raw oil.

The coffee raw material lubricating oil of the invention can effectively improve the viscosity of the traditional lubricating oil, reduce the heat generated by the friction of the machine parts, avoid the long-term operation of the machine parts under high temperature, and achieve the effect of delaying the service life of the machine parts.

The coffee raw material lubricating oil of the invention reduces the amount of mineral oil, thereby slowing the excessive exploitation of crude oil and reducing the refining of crude oil, thereby achieving the effects of saving energy and reducing air pollution.

Fig. 1 is a graph showing the relationship between viscosity and time of the coffee green oil of the present invention at 40 °C.

Fig. 2 is a schematic view showing the friction coefficient and the temperature of the machine parts of the coffee raw oil and the LPS68 lubricating oil of the present invention under load of 20 N and 80 rpm.

Fig. 3 is a schematic view showing the friction coefficient and the temperature of the machine parts of the coffee raw material lubricating oil of the present invention and the LPS68 lubricating oil at a load of 40 N and 80 rpm.

Fig. 4 is a graph showing the friction coefficient and the temperature of the machine parts of the coffee raw oil and LPS68 lubricating oil of the present invention at a load of 60 N and 320 rpm.

The above and other objects, features and advantages of the present invention will become more <RTIgt; Containing 60 to 70% by weight of mineral oil, 16 to 20% of coffee green oil and 14 to 20% of active agent.

In particular, mineral oil is preferably selected from mineral oil, mechanical oil, white oil or paraffin oil. Since the mineral oil is low in cost and can withstand a temperature between 110 and 130 ° C, The lubricating oil widely used in industrial machinery is the main base oil of the coffee raw material lubricating oil in the present invention.

The above-mentioned coffee biomass oil can be obtained by the following method, taking 1 kg of coffee and lysing at 400-550 ° C to obtain the coffee green oil, preferably, the coffee raw oil can be cracked. Nitrogen treatment is carried out to remove impurities in the coffee raw oil, and the final oil production rate is 25 wt%, wherein the temperature of the cracked coffee is preferably 450 ° C, and the obtained coffee biomass oil is 40 ° C viscosity system. Can be maintained at 60~70cSt (as shown in Figure 1), 90 The change in viscosity during the day is not significant; the manner in which the coffee green oil is obtained can be understood by those skilled in the art and will not be described herein.

The above active agent may be any additive having a solubilizing effect, preferably selected from the group consisting of polyoxyalkylene alkyl ether and sorbitan oleate for binding to the coffee raw oil. Thereby, the coffee biomass oil is thoroughly mixed with the mineral oil, wherein the weight ratio of the polyoxyalkylene alkyl ether and the sorbitan oleate may be 6:1 to 15:10, preferably 13:6.

The coffee raw material lubricating oil of the invention is a mineral oil blended with coffee raw oil to reduce the amount of mineral oil, wherein 65% by weight of mineral oil, 16% of coffee raw oil and 19% of active agent are Better; replacing some mineral oil with coffee green oil can increase the surface contact angle and reduce the surface adhesion, thus improving the problem of the high friction coefficient of the traditional lubricating oil, so that the machine is not easy to rub and heat, so that the protection of the machine is less The effect of wear and tear.

In order to confirm that the coffee biomass lubricating oil of the present invention has the above-mentioned effects, the following tests were carried out:

(A) Viscosity test

This test tests the viscosity of the coffee raw oil of the present invention by a Redwood viscosimeter, which is a blend of 65% by weight of mineral oil and 16% of coffee. A lubricating oil, 13% polyoxyalkylene alkyl ether and 6% sorbitan oleate, and LPS68 lubricating oil was used as a control group, and LPS68 was a mineral oil-based lubricating oil. The results are shown in Table 1. .

Please refer to Table 1. At high temperature, the viscosity of the coffee raw oil of the present invention is significantly lower than that of the LPS68 lubricating oil, which means that the addition of the coffee raw oil can effectively reduce the viscosity to maintain the lubricating effect.

(B) Abrasion test

This test uses a parallel type grinding tester to perform the abrasion test according to ASTM D-2782 to measure the wear properties of coffee raw oil and LPS68 lubricating oil under different load and speed, such as friction coefficient and mechanical parts. The temperature and contact resistance are shown in Figures 2 to 4, and the symbols in the respective figures are shown in Table 2.

Please refer to Fig. 2, which is the friction coefficient measured with time under the load of 20N and the rotation speed of 80 rpm and the temperature of the machine. At each time, the friction coefficient of the coffee raw oil of the present invention is Lower than LPS68 lubricating oil, which affects the temperature of the machine; corresponding to the friction coefficient, the friction caused by the use of the coffee raw oil is smaller, and the temperature rise of the machine is also significantly lower than that of the LPS68 lubricating oil.

Please refer to the third figure, which is the friction coefficient measured by time and the temperature of the machine under the load of 40N and the rotation speed of 80rpm. At each time, the friction coefficient of the coffee raw oil of the present invention is obvious. It is lower than LPS68 lubricating oil, and the temperature of the coffee raw material lubricating oil is also lower than that of LPS68 lubricating oil. The above results are consistent with the lower friction coefficient and the lower temperature of the corresponding parts.

Please refer to Figure 4 for the load 60N and the speed of 320rpm. The friction coefficient measured with time changes with the temperature of the machine; although the friction coefficient of the coffee raw oil of the present invention is higher than that of the LPS68 lubricating oil at first, as the time increases, the friction coefficient gradually increases at the 10th minute. Decreased and lower than LPS68 lubricating oil; corresponding to the coefficient of friction, the initial mechanical temperature measured using the coffee raw oil is higher than LPS68 lubricating oil, but with the subsequent lower friction coefficient, the temperature The increase rate is also much lower than that of LPS68 lubricant. Therefore, the coffee raw oil can reduce the friction heat generated by the machine and avoid the operating temperature of the machine is too high.

In summary, the coffee raw material lubricating oil of the invention can effectively improve the viscosity of the traditional lubricating oil, reduce the heat generated by the friction of the machine parts, avoid the long-term operation of the machine parts under high temperature, and achieve the effect of delaying the service life of the machine parts.

Furthermore, the coffee raw material lubricating oil of the invention reduces the amount of mineral oil, thereby slowing the excessive exploitation of crude oil and reducing the refining of crude oil, thereby achieving the effects of saving energy and reducing air pollution.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

Claims (6)

A coffee raw oil comprising: 60-70% by weight of mineral oil, 16-20% of coffee green oil and 14-20% active agent; wherein the coffee raw oil is 400 At a temperature of ~550 ° C, the coffee is produced by cracking the oil. The coffee raw oil according to claim 1, wherein the mineral oil comprises 65% by weight of mineral oil, 16% of coffee green oil and 19% of active agent. The coffee raw material lubricating oil according to claim 1 or 2, wherein the coffee raw oil has a viscosity at 40 ° C of 60 to 70 cSt. The coffee raw oil according to claim 1 or 2, wherein the mineral oil is mineral oil, mechanical oil, white oil or paraffin oil. The coffee raw material lubricating oil according to claim 1 or 2, wherein the active agent is polyoxyalkylene alkyl ether and sorbitan oleate, and the proportion by weight The system is 6:1~15:10. The coffee raw material lubricating oil according to claim 1 or 2, wherein the coffee raw oil may be subjected to nitrogen treatment during cracking to remove impurities in the coffee raw oil.