Patent Application
20130296205
1. Field of the Invention
The present invention relates to a lubricant, particularly to a straw biolubricant comprising straw biomass oil.
2. Description of the Related Art
Conventional lubricant comprises mineral oil and additives, including anti-foaming agents, dispersants, antioxidants, cleaning agents and rust inhibitors, and which is used on various machines, such as engines of vehicles, in order to prevent machine parts from being attrite and prolong the service life of the machine parts.
The conventional lubricant comprises a significant amount of mineral oil, being a distillate of petroleum. The mineral oil in the conventional lubricant properly maintains a quite viscosity of the conventional lubricant, and thus that it is sufficient to form a thick oil film on a moving interface of the machine parts for avoiding possible collision. However, the quite viscosity of the conventional lubricant also increases the coefficient of friction (COF) of the conventional lubricant, leading to over increase of the temperature on the engines of vehicles due to additional heats that are generated by excessive friction on machine parts. Accordingly, the conventional lubricant has troubles with easily resulting in abrasion of the machine parts and reducing the service life of machine, if machine parts regularly work under a high temperature. Furthermore, the conventional lubricant is heavy on its consumption.
In additional, mineral oil in waste conventional lubricant will contaminate ground and water resource, being damage to the growth of living organisms, such as plants and aquatics, even leading to death of those living organisms. Also, the additives in the waste conventional lubricant usually have chemical poison, and which increases incident to various diseases on human that minutely expose to noxious gas comprising the said additives.
Hence, there is a need for an improvement over the conventional lubricant by lower the coefficient of friction, as well as the chemical poison therein.
The primary objective of this invention is to provide a straw biolubricant which has a low coefficient of friction, and is eco-friendly by being frugal in fuel use.
The secondary objective of this invention is to provide a straw biolubricant which can reduce heat generated from operating machine parts and prolong the service life of machine parts.
Another objective of this invention is to provide a straw biolubricant which increases the contact resistance thereof so that the thickness of oil film is increased to avoid the abrasion of the machine parts.
An embodiment of the present invention relates to a straw biolubricant comprising 70-80% mineral oil, 6-11% straw biomass oil, and 15-20% active agent, particularly to a straw biolubricant comprising 78% mineral oil, 8% straw biomass oil and 18% active agent, wherein the active agent is sorbitol oleate, the straw biomass oil is obtained by extracting waste straw or by thermochemical decomposing waste straw via an equipment of pyrolysis, and the mineral oil is machine oil, white oil, or paraffin oil.
Further scope of the applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferable embodiments of the invention, are given by way of illustration only, since variances will become apparent to those skilled in the art from this detailed description.
The present invention will become more fully understood from the detailed description given herein below and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:
In the various figures of the drawings, the same numerals designate the same or similar parts.
The straw biolubricant of a the better embodiment of the present invention comprises 70-80% mineral oil, 6-11% straw biomass oil, and 15-20% active agent, wherein the mineral oil can be machine oil, white oil, or paraffin oil. The straw biomass oil in the straw biolubricant is extracted from straw or waste straw, especially by thermochemical decomposing waste straw via an equipment of pyrolysis. The active agent in the straw biolubricant can be any additives having solubilized effects, preferably being sorbitol oleate in a preferable embodiment of the present invention, to completed mix with the straw biomass oil and to improve the composition between straw biomass oil and mineral oil.
The straw biolubricant of the better embodiment of the present invention comprises straw biomass oil being a replacement of mineral oil of conventional lubricant. The straw biomass oil is less viscous under a high temperature in comparison with conventional lubricant, since the straw biomass oil does not have saturated lipid hydrocarbons (namely aliphatic hydrocarbons) and unsaturated lipid hydrocarbon. With such treatments, as applying to machines, the straw biolubricant of the better embodiment of the present invention will comprises lower coefficient of friction under a high temperature, and also is capable of increasing the contact resistance to increase the thickness of oil film, so that it is beneficial in avoiding the abrasion of machine parts, especially after a long-term of working period, and improving the output power of the machine parts. Furthermore, with the performance of the straw biolubricant of the better embodiment of the present invention, it is sufficient to decrease the heats of machine parts that are generated by excessive friction on the machine parts, so as to prevent the machine parts from minutely working at a high temperature and to prolong the service life thereof.
Additionally, as applying to various engines of vehicles, the straw biolubricant can further reduce fuel consumption of those engines, avoiding over-depletion of fuel and environmental pollution. In this way, the straw biolubricant of the better embodiment of the present invention not only can improve the contaminations of ground, air and water resource caused by the conventional lubricant, but also achieve energy conservation and environmental protection.
In a preferable embodiment of the present invention, a straw biolubricant comprising 74% mineral oil, 8% straw biomass oil, and 18% sorbitol oleate is prepared, and which has preferable viscosity as listed in TABLE 1.
According to TABLE 1, it is noted that the viscosity of the straw biolubricant is significantly improved whenever at a high or low temperature by adding the straw biomass oil.
For proving the benefits of the straw biolubricant of the preferable embodiment of the present invention, it is further applied to a parallel fiction tester to carry out a wearing test, by demonstrating and recording the contact resistance and the coefficient of friction (COF) of a conventional lubricant and the straw biolubricant of the preferable embodiment of the present embodiment, and also the temperature of machine parts under a constant load of 60N, and various rotational rate.
With reference to
Also,
Through the present invention, the straw biolubricant being beneficial to lower COF, to improve output power, and to avoid the loss of fuel is provided. Furthermore, the straw biolubricant of the present embodiment can reduce the heats of machine parts that are generated by excessive friction, prolong the service life of the machine parts, and also avoid the abrasion of the operating machine parts by forming a thick oil film thereon.
Although the invention has been described in detail with reference to its presently preferred embodiment, it will be understood by one of ordinary skill in the art that various modifications can be made without departing from the spirit and the scope of the invention, as set forth in the appended claims.
