A kind of method that takes biomass as raw material to prepare biogasoline

Abstract

The invention relates to a method for preparing biological gasoline from biomass, which comprises the following steps: biomass hydrolysis: hydrolyzing biomass in 0.1-10% dilute acid at 140-220 DEG C for 5-240 minutes to prepare levulinic acid; carrying out dehydration reaction on the levulinic acid at 130-180 DEG C for 60-180 minutes under the action of 0.1-5% liquid acid, acidic ionic liquid or molecular sieve to prepare angelica lactone; carrying out polymerization reaction on the angelica lactone at 60-160 DEG C for 1-180 minutes under the action of 0.1-5% inorganic alkali to prepare an angelica lactone polymer; and carrying out hydrogenation reaction on the angelica lactone polymer at 200-400 DEG C for 4-60 hours under the action of a 0.1-5% catalyst to obtain the final product biological gasoline. The method can greatly enhance the carbon utilization ratio, reduce the carbon dioxide emission, and lower the dependence on petroleum and other nonrenewable resources. The method has the advantages of short technical process and mild reaction conditions; and the product has the advantages of high yield and high quality.

Description

technical field

[0001] The invention belongs to the field of new energy biogasoline preparation, and specifically relates to a method of preparing levulinic acid by hydrolyzing biomass with biomass as raw material, dehydrating levulinic acid to prepare angelica lactone, then polymerizing to prepare angelica lactone polymer, and finally polymerizing Method for preparing biogasoline by hydrodeoxygenation. Background technique

[0002] In recent years, accompanied by the rapid growth of the world economy, the depletion of fossil energy and the deterioration of the living environment of human beings. Driven by the petrochemical economy, the world economy is growing at an unprecedented rate. However, the resulting energy crisis and environmental crisis are becoming increasingly prominent. Calculated at the current consumption rate, the proven oil reserves on the earth can only maintain the demand for 40-60 years. Therefore, the shortage of fossil fuels in the future is a realit...

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