Carbon-supported cobalt-based slurry-bed synthesis gas-to-oil technology has passed the appraisal of scientific and technological achievements

On May 14, the "carbon-supported cobalt-based slurry-bed synthesis gas-to-liquid technology development and industrialization" developed by the team of researchers Ding Yunjie and Zhu Hejun of the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences passed the China Petroleum and Chemical Industry.
The identification of scientific and technological achievements organized by the Federation
.
The appraisal committee believes that the technology is highly innovative and the overall technology has reached the international advanced level, and unanimously agreed to pass the appraisal
.

The project of "Technology Development and Industrialization of Syngas-to-Liquid from Carbon-supported Cobalt-Based Slurry Bed" is jointly undertaken by Dahua Institute, Yanchang Petroleum Yulin Coal Chemical Co.
, Ltd.
and Beijing Petrochemical Engineering Co.
,
Ltd.
The project's demonstration unit "New Generation Coal-to-Liquid Unit" started construction in Yulin in 2013.
In 2017, it achieved 40% load operation, opened up the whole process, and produced qualified liquefied gas, stable light hydrocarbons, Fischer-Tropsch light wax and ferrous metals.
Support heavy wax and other products; achieve 85% load operation in 2019, and 100% load operation in July 2020; from August 8 to 11, 2020, China Petroleum and Chemical Industry Federation organized an expert group to carry out continuous industrial demonstration devices.
After 72 hours of assessment and calibration, the device achieved 103% load operation, the total conversion rate of syngas was 98.
7%, the selectivity of CH ⁴ was 6.
7%, the selectivity of C ₃₊ hydrocarbons was 86.
4%, and the selectivity of CO ² was 0.
006%
.

The team of Ding Yunjie and Zhu Hejun developed cobalt carbide-mediated in-situ crystallisation technology and developed a high-performance cobalt-based catalyst, which solved the technical problems of low yield, low activity and poor stability of traditional cobalt-based catalysts, filling the domestic market.
Technological gaps in the slurry bed industry for cobalt-based Fischer-Tropsch synthesis
.
The new cobalt-based catalyst has excellent activity, diesel fraction selectivity and stability, and extremely low CO2 selectivity, which can reduce the operating energy consumption of the Fischer-Tropsch unit and save the decarbonization unit
.
In addition, the metal cobalt can be recovered after simple incineration of the waste catalyst, which can achieve the green environmental protection goal of low solid waste or even no solid waste
.