Abstract: |
The invention discloses a preparing method of biological diesel with supercritical flowing institution under the condition of co-dissolvent in biological energy resource and green chemical industry domain, which comprises the following steps: choosing animal and vegetable fat as raw material; setting methyl alcohol as supercritical fluid medium; choosing alcohol or normal propyl alcohol or normal butyl alcohol as co-dissolvent; proceeding supercritical transforming esterification reaction under the condition of finite temperature, pressure, time and alcohol oil ratio; preparing biological diesel; generating by-product glycerine at the same time. This technology decreases the reacting temperature, pressure and operating cost, which is fit for industrial application. |