Title:
METHOD AND SYSTEM FOR CONTINUOUSLY PRODUCING BASE OIL FROM WASTE MINERAL OIL CONTAINING CHLORINE AND SILICON
Document Type and Number:
WIPO Patent Application WO/2024/092841
Kind Code:
A1
Abstract:
A method and system for continuously producing base oil from waste mineral oil containing chlorine and silicon. Waste mineral oil is introduced into a thermal precipitation device (2) for thermal precipitation, the waste mineral oil subjected to thermal precipitation is introduced into a flash evaporation device (3), and the resulting light component oil and heavy component oil are subjected to a dechlorination reaction respectively; and after the dechlorination reaction, the heavy component oil is subjected to demetallization and distillation under reduced pressure, and then introduced into an adsorption desiliconization tank (18) for adsorption desiliconization, and the desiliconized oil product is subjected to a hydrogenation reaction and rectification to obtain solvent oil and high-quality base oil and industrial white oil with specifications meeting the standards for base oil of class II and above developed by American Petroleum Institute (API). By means of the method, the heavy oil yield can reach 88% or more, the total oil product yield can reach 92% or more, and the total recovery rate of the whole process can reach 98% or more. Moreover, the problems of device coking, corrosion, blockage, hydrogenation catalyst poisoning, etc., during the regeneration process of waste mineral oil containing chlorine and silicon can be effectively solved.
Inventors:
WANG MING (CN)
ZHANG SHUAI (CN)
MENG JIAPING (CN)
HOU DONGYANG (CN)
WANG ZHIZHONG (CN)
ZHANG SHUAI (CN)
MENG JIAPING (CN)
HOU DONGYANG (CN)
WANG ZHIZHONG (CN)
Application Number:
PCT/CN2022/130151
Publication Date:
May 10, 2024
Filing Date:
November 05, 2022
Export Citation:
Assignee:
NINGBO ZHONGXUN ENV TECH COMPANY LLC (CN)
International Classes:
C10G1/00; C10G53/02; C10G55/06; C10G67/02; C10G67/14; C10M175/02
Domestic Patent References:
| WO2011105966A1 | 2011-09-01 |
Foreign References:
| CN107892990A | 2018-04-10 | |||
| CN112625723A | 2021-04-09 | |||
| CN112457881A | 2021-03-09 | |||
| CN109504431A | 2019-03-22 | |||
| CN108611122A | 2018-10-02 | |||
| US20210163830A1 | 2021-06-03 |
Attorney, Agent or Firm:
ZIBO QIZHIDA INTELLECTUAL PROPERTY AGENCY (CN)
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