US 12,275,907 B2
Micro-reaction device and method for preparing biodiesel by base catalysis
Guiguang Chen, Dezhou (CN); Chengjin Wang, Dezhou (CN); Mian Duanmu, Dezhou (CN); and Yong Sun, Dezhou (CN)
Assigned to Shandong Tsingchuang Chemicals Co. Ltd., Dezhou (CN)
Filed by Shandong Tsingchuang Chemicals Co. Ltd., Dezhou (CN)
Filed on Dec. 11, 2023, as Appl. No. 18/535,047.
Application 18/535,047 is a continuation of application No. PCT/CN2021/102152, filed on Jun. 24, 2021.
Prior Publication US 2024/0101916 A1, Mar. 28, 2024
Int. Cl. C10L 1/02 (2006.01); B01J 14/00 (2006.01); B01J 19/00 (2006.01); B01J 19/24 (2006.01); C10G 3/00 (2006.01); C11C 3/10 (2006.01)
CPC C10L 1/026 (2013.01) [B01J 14/00 (2013.01); B01J 19/0066 (2013.01); B01J 19/0093 (2013.01); B01J 19/242 (2013.01); C10G 3/42 (2013.01); C11C 3/10 (2013.01); B01J 2219/00033 (2013.01); B01J 2219/00889 (2013.01); B01J 2219/00905 (2013.01); B01J 2219/00961 (2013.01); C10G 2400/04 (2013.01); C10L 2200/0476 (2013.01); C10L 2200/0484 (2013.01); Y02E 50/10 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A device for preparing biodiesel by base catalysis, wherein the device comprises a feeding system, a micro-reaction apparatus, a separation apparatus, and a reflux apparatus;
the feeding system is in communication with the micro-reaction apparatus, and the micro-reaction apparatus is in communication with the separation apparatus;
the micro-reaction apparatus comprises a micro-reactor, and the micro-reactor is a micro-dispersion micro-reactor;
in the micro-reaction apparatus, an oil phase and short chain alcohols undergo ester exchange reaction under base catalysis to generate fatty acid esters and by-product glycerol; and
the micro-dispersion micro-reactor is provided with a micro-dispersion structure for dispersing the short chain alcohols into micro-droplets, the short chain alcohols are methanol or ethanol;
the reflux apparatus is connected between the outlet of the separation apparatus and the outlet of a raw oil tank of the feeding system for mixing part of the reaction products after separation by the separation apparatus with the initial raw oil.