TWI673356B - Whole grain coffee lubricant - Google Patents

Abstract

The invention comprises a glycerin of 37 to 40 wt%, acacia gum of 1 to 5 wt%; and the rest is coffee raw oil. This case has both the advantages of effectively reducing the mechanical friction coefficient and operating temperature, and can replace mineral oil.

Description

Whole Bio Coffee Lubricant

The present invention relates to a full-bodied coffee lubricating oil, and more particularly to a full-bodied coffee lubricating oil which has both the effect of reducing mechanical friction coefficient and operating temperature and can replace mineral oil.

Traditional lubricating oils include base oils and additives. Among them, base oils are based on mineral oils, and additives can include antifoaming agents, diffusion agents, antioxidants, cleaning agents or rust inhibitors. Traditional lubricating oils are mainly used To lubricate the steam engine, locomotive engine and various types of machinery, reduce the wear of the parts, and reduce the frequency of replacement of parts. Derivatives obtained from mineral oil based crude oil through distillation and refining. The main component is hydrocarbons, which have considerable viscosity. It can make the moving interface of the machine produce an oil film thickness during operation to protect the machine from abrasion. Because of the viscosity of the mineral oil, the friction coefficient of the traditional lubricating oil is increased, which causes the operating temperature to be too high under the long-term running friction of the parts. When the parts are exposed to high temperature for a long time, the wear and tear of the parts will be accompanied by a reduction in service life. Since mineral oil is refined from crude oil, today's petrochemical energy is gradually depleting due to the increasing population of the earth. Under over-exploitation, the process of refining crude oil will inevitably emit a large amount of carbon dioxide, which will worsen the global greenhouse effect. , And affect the ecological environment and climate of the earth. However, conventional mineral oils have problems of "higher coefficient of friction" and "damaging the environment". In view of this, it is necessary to develop technologies that can solve the above-mentioned conventional disadvantages.

The object of the present invention is to provide a full-biomass coffee lubricating oil, which has the advantages of effectively reducing the mechanical friction coefficient and operating temperature, and can replace mineral oil and the like. In particular, the problem to be solved by the present invention is that the conventional mineral oil has a "high friction coefficient" and "environmental damage". The technical means to solve the above-mentioned problems is to provide a whole biomass coffee lubricating oil, which includes: glycerin 37 to 40 wt% glycerol; gum arabic 1 to 5 wt%; and the rest is coffee biomass oil. The above-mentioned objects and advantages of the present invention can be easily understood from the detailed description and accompanying drawings of selected embodiments below. The following examples and drawings are used to explain the present invention in detail:

The present invention is a full-bodied coffee lubricating oil, which comprises: glycerin 37 to 40 wt%; glycerin gum 1 to 5 wt%; and the rest is coffee biomass oil. In practice, the weight percentages of the coffee biomass oil, glycerin, and gum arabic can be 58.8 wt%, 39.2 wt%, and 2.0 wt%, respectively. Alternatively, the weight percentages of the coffee biomass oil, glycerin, and gum arabic may be 57.5 wt%, 38.3 wt%, and 4.2 wt%, respectively. The viscosity of the coffee biomass oil at 40 ° C is 60 to 70 cSt. Please refer to Table 1 below. This is the detailed composition of the two coffee oil ratios of the whole bio coffee lubricating oil (or coffee oil for short). Table 1 project Coffee oil (g) Glycerin (g) Gum Arabic (g) Coffee oil ratio (1) 15.00 10.00 0.5 Coffee oil ratio (2) 15.00 10.00 1.10 After conversion in Table 1, the detailed composition can be converted into weight percentage, as shown in Table 2. Table 2 project Coffee oil (%) glycerin(%) Gum Arabic (%) Coffee oil ratio (1) 58.8% 39.2% 2.0% Coffee oil ratio (2) 57.5% 38.3% 4.2% Regarding the preparation method of this case: (1) Control the room temperature at 25 ° C, take out the coffee ground oil (that is, the coffee biomass oil in this case) and filter it to reach the required weight. (2) Add surfactant to coffee ground oil and stir. (3) Add glycerin to the surfactant (ie, the gum arabic in this case) and stir in the coffee ground oil. (4) Finally, the bio-oil coffee lubricating oil is heated to 80 ° C and stirred. (5) After cooling, measure whether the viscosity reaches the required viscosity at 40 ° C (for example, it can be maintained at 60 ~ 70cSt). (6) If the required viscosity is not reached, go back to step (4) and repeat the same steps until the required viscosity is reached. The test method in this case is to use a wear tester to perform tests using the ring-to-disk line contact motion. During operation, according to a specific load (such as 60N) and a specific speed (such as 80rpm), various operating conditions are recorded. Parameters, such as friction coefficient, specimen temperature, etc. Please refer to Figure 1, which shows the measured data of the wear coefficients of the traditional mineral oil and the two different ratios of the whole-bodied coffee lubricating oil in this case. Among them, the horizontal axis of Fig. 1 is time, and the vertical axis is abrasion coefficient. And L0 represents the data curve of traditional mineral oil, and L1 and L2 respectively represent the data curve of coffee oil ratio (1) and (2) of this case. From Figure 1, it can be proven that after about 15 minutes, the friction coefficient of the coffee oil ratios (1) and (2) in this case is lower than (at least 50% lower) the traditional mineral oil, especially the coffee oil ratio (2) Optimal. Please refer to FIG. 2, which shows the measured data of the temperature of the traditional mineral oil and two different types of whole-bodied coffee lubricating oil in this case. Among them, the horizontal axis of FIG. 2 is time, and the vertical axis is temperature. M0 represents the data curve of traditional mineral oil, and M1 and M2 represent the data curves of the coffee oil ratios (1) and (2) in this case. It can be proved from Figure 2 that after about 15 minutes, the temperature of the coffee oil ratios (1) and (2) in this case is lower than (at least 1 ° C lower) the traditional mineral oil. As mentioned above, the full-bodied coffee lubricating oil of the present invention can effectively reduce the friction coefficient during operation, and can reduce the heat generated by friction due to friction, thereby delaying the service life of the components. In addition, the whole-bodied coffee lubricating oil of the present invention can replace mineral oil, thereby slowing the excessive extraction of crude oil, and reducing the extraction of crude oil, thereby achieving the effects of replacing mineral oil and reducing air pollution. The advantages and effects of the present invention can be summarized as follows: [1] Effectively reduce the mechanical friction coefficient and operating temperature. The whole-bodied coffee lubricating oil of the present invention can effectively reduce the friction coefficient during operation, and can reduce the heat generated by friction due to friction, thereby delaying the service life of the components. [2] Can replace mineral oil. The whole-bodied coffee lubricating oil of the present invention can replace mineral oil, thereby slowing the excessive extraction of crude oil and reducing the refining of crude oil, thereby achieving the effects of replacing mineral oil and reducing air pollution. Therefore, it can replace mineral oil. The above is only a detailed description of the present invention through a preferred embodiment, and any simple modifications and changes made to the embodiment will not depart from the spirit and scope of the present invention.

L0‧‧‧ mineral oil friction coefficient curve

Friction coefficient curve for L1‧‧‧ coffee oil ratio 1

L2‧‧‧Friction coefficient curve of coffee oil ratio 2

M0‧‧‧ Mineral oil temperature curve

Temperature curve of M1‧‧‧ coffee oil ratio 1

Temperature curve of M2‧‧‧ coffee oil ratio 2

Figure 1 is a graph of the correspondence between time and friction coefficient of the present invention. Figure 2 is a graph of the correspondence between time and temperature of the present invention.

Claims (4)

A full-bodied coffee lubricating oil, comprising: glycerin of 37 to 40 wt%; gum arabic of 1 to 5 wt%; and the rest is coffee bio-oil; wherein the coffee bio-oil, glycerin and gum arabic The weight percentages are 58.8 wt%, 39.2 wt%, and 2.0 wt%, respectively. According to the whole biomass coffee lubricating oil described in item 1 of the scope of patent application, wherein the viscosity of the coffee biomass oil at 40 ° C is between 60 and 70 cSt. A full-bodied coffee lubricating oil, comprising: glycerin of 37 to 40 wt%; gum arabic of 1 to 5 wt%; and the rest is coffee bio-oil; wherein the coffee bio-oil, glycerin and gum arabic The weight percentages are 57.5wt%, 38.3wt%, and 4.2wt%, respectively. According to the whole biomass coffee lubricating oil described in item 3 of the patent application scope, wherein the viscosity of the coffee biomass oil at 40 ° C is between 60 and 70 cSt.