Solid acid catalyst and method for preparing biodiesel using the catalyst

摘要

The present invention relates to a solid acid catalyst and a method for preparing biodiesel using the same. The method for preparing biodiesel includes a step of preparing biochar and a step of adding acid to the prepared biochar and sintering at 250-600 deg. C for 1-5 seconds. [Reference numerals] (AA) Dunalliella skim cell; (BB) Dunalliella bio-charcoal; (CC) Acid solid catalyst