Energy-saving low-emission biodiesel

Abstract

The invention discloses energy-saving low-emission biodiesel. The energy-saving low-emission biodiesel comprises the following components in percentage by weight: 40-50% of low-grade diesel, 10-30% of methanol, 5-15% of purified water and 15-30% of animal and vegetable oil. The raw material components are added into a high pressure vibration reaction kettle and stirred to obtain the energy-saving low-emission biodiesel finished product. The energy-saving low-emission biodiesel is synthesized of the low-grade diesel and biological raw materials, diesel efficiency is improved, and emission of toxic tail gas of motor vehicles is reduced, which is beneficial to health of people.

Description

Technical field: [0001] The invention relates to a diesel oil, in particular to an energy-saving and low-emission biodiesel. Background technique: [0002] In recent decades, due to the increasing depletion of oil resources, rising oil prices and people's increasing concern for environmental protection, the research on biodiesel, which is a substitute for diesel engine fuel, is becoming more and more important. At present, the main processing method of biodiesel is chemical method. Inorganic acid and alkali are often used as transesterification catalysts. The reaction conditions are relatively mild, but alkalis are easily used as catalysts to cause saponification, which requires extremely low water content in raw materials. Complex, the product needs to be washed and purified, resulting in a large amount of waste water; the acid is used as a catalyst to corrode the metal parts of the engine and the high-temperature, high-pressure supercritical reaction device. Without any c...

AI Technical Summary

Problems solved by technology

At present, the main processing method of biodiesel is chemical method. Inorganic acid and alkali are often used as transesterification catalysts. The reaction conditions are relatively mild, but alkalis are easily used as catalysts to cause saponification, which requires extremely low water content in raw materials. Complicated, the product needs to be washed and purified, resulting in a large amount of waste water; acid is used as a catalyst to corrode metal parts of engines and high-temperature, high-pressure supercritical reaction devices

Without any catalyst, the transesterification reaction can also be realized in the supercritical low-carbon alcohol system. The reaction speed is extremely fast and only takes a few minutes, but the reaction conditions are extremely harsh. According to reports, a high temperature of 350-400 ° C and a pressure of 45-65 MPa High pressure, difficult to realize in engineering