Title:
METHOD AND SYSTEM FOR PRODUCING ALKYLATED BIOMASS AVIATION FUEL FROM WASTE OILS AND FATS
Document Type and Number:
WIPO Patent Application WO/2023/236390
Kind Code:
A1
Abstract:
Disclosed in the present invention are a method and system for producing an alkylated biomass aviation fuel from waste oils and fats. The method comprises: taking raw oil and mixed hydrogen as main raw materials, successively subjecting same to a hydrofining reaction, stripping separation and an isomerization reaction, which are continuously performed, and subjecting the product obtained from the isomerization reaction to cooling, gas-liquid separation and fractionation to obtain aviation fuel, wherein the oil phase material obtained from the hydrofining reaction and raw materials for the hydrofining reaction are subjected to heat exchange and then directly to the stripping separation; during the operation of the stripping separation, a high-pressure hydrogen gas is used as a stripping working medium, and the hydrogen-sulfide-containing hydrogen gas recovered by the stripping separation is used as recycle hydrogen and is combined with supplementary hydrogen to serve as mixed hydrogen for use; and the oil phase material obtained from the stripping separation and a product material for the isomerization reaction are subjected to heat exchange and then directly to the isomerization reaction. In the present invention, by means of an efficient stripping separator, hydrogen sulfide and water vapor are completely removed; and generated oil at the bottom of the efficient separator enters an isomerization reaction system by means of self-pressure, such that the energy consumption in the process and production procedures are effectively reduced.
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Inventors:
SHEN JIAN (CN)
LI YUANBO (CN)
WANG YANTAO (CN)
ZHANG JINFU (CN)
FU JUNHONG (CN)
LI YUANBO (CN)
WANG YANTAO (CN)
ZHANG JINFU (CN)
FU JUNHONG (CN)
Application Number:
PCT/CN2022/121404
Publication Date:
December 14, 2023
Filing Date:
September 26, 2022
Export Citation:
Assignee:
ZHEJIANG JIAAO ENPROTECH STOCK CO LTD (CN)
International Classes:
C10G3/00; B01D3/00; B01D3/38; B01J4/00; C10G7/00
Foreign References:
| CN115044388A | 2022-09-13 | |||
| CN102027098A | 2011-04-20 | |||
| CN109666509A | 2019-04-23 | |||
| CN103937527A | 2014-07-23 | |||
| CN103059902A | 2013-04-24 | |||
| US20090321311A1 | 2009-12-31 |
Attorney, Agent or Firm:
HANGZHOU ZHIXIAN PATENT AGENCY (CN)
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