CNOOC's self-developed naphthenic diesel high-airspeed hydrogenation technology has been successfully applied

On December 9, it was learned from CNOOC Tianjin Chemical Research and Design Institute Co.
, Ltd.
that the naphthenic diesel high-altitude hydrogenation technology independently developed by CNOOC Tianjin Chemical Research and Design Institute Co.
, Ltd.
(hereinafter referred to as "CNOOC Development Tianjin Institute") was successfully applied in CNOOC Zhongjie Petrochemical Co.
, Ltd.
(hereinafter referred to as "Zhongjie Petrochemical"), and the processing scale increased by nearly 40% to a record, and has been in stable operation for nearly 6 months, marking a new breakthrough
in the application of TH series hydrogenation catalysts in CNOOC Development Tianjin Institute.

In 2020, the pressure of Zhongjie Petrochemical's 800,000 tons/year diesel hydrogenation unit fluctuated systematically, and it has not been able to reach mass production, which seriously affects the efficiency
of the enterprise.
After the diagnosis of experts from refining and chemical companies, transformation plans
such as replacing high-performance catalysts were finally proposed.
The gradation of large airspeed catalysts has become a problem
faced by Sinopec.

In October 2020, Zhu Jinjian, head of hydrogenation technology at CNOOC Development Tianjin Institute, took the initiative to ask Ma Zhiyuan, manager of Sino-Pacific Petrochemical Technology Management Department, to gather superior scientific research strength to develop a high-performance hydrogenation catalyst to solve the problems
that have plagued the company for 6 years.
In the later stage, after full demonstration by the project team and many exchanges with Sino-Czech Petrochemical and PetroChina East China Design Institute, the two sides finally decided on a new "order-based" scientific research and development model to promote the implementation of scientific research projects for cooperation
.

Since the completion of the first industrial application of THDS hydrorefining catalysts in Sinopec in 2015, CNOOC Development Tianjin TH series hydrogenation catalysts have developed a series of technologies and supporting catalysts
including hydrorefining, hydrocracking, hydromodification and so on.
At the same time, the TH series hydrogenation catalysts of Tianjin Institute have been applied and verified in different hydrogenation units of more than a dozen enterprises, which can meet the needs of most refinery hydrogenation units and form CNOOC's own hydrogenation catalyst technology system
.

Yu Haibin, Secretary of the Party Committee and Chairman of CNOOC Development Tianjin Institute, said, "To solve the outstanding problems and contradictions facing technological development, it is necessary to use reform to 'break the ice' to drive development to 'break problems'
.
The results of the 'Science and Technology Reform Demonstration Action' are not only innovative technologies, but also the transformation of science and technology into productive forces
.
”

CNOOC Development Tianjin Institute strengthens market orientation, explores the integrated practice of "research, production and application", promotes the transformation of scientific research advantages into market value, and launches a general attack
on the weak links that restrict the transformation and improvement of scientific and technological achievements.
After confirming the intention of cooperation with Sinojet Petrochemical, the two parties immediately applied for the scientific research project of "Process Optimization and Catalyst Suitability Research of Straight-distilled Diesel Hydrogenation Unit" of Refining and Chemical Company, and in response to the needs of Sinojet Petrochemical, CNOOC Development Tianjin Institute set up a key project research team of "three three establishment", and the second department of operation organized by Sino-Czech Petrochemical Technology Department to conduct on-site investigation and communication for many times
.
After in-depth understanding of the requirements, the research team optimized the pore structure and active components of the catalyst according to the characteristics of CNOOC naphthenyl diesel
.
At the same time, combined with the characteristics of the future raw material of Zhongjie Petrochemical's diesel hydrogenation unit, the requirements for catalyst performance are improved
.
Due to the tight project time and heavy tasks, the members of the research team continued to work hard to optimize
the catalyst and process.
In less than 3 months, the process technology optimization plan was completed, and Yu Aijun, manager of Zhongjie Petrochemical Technology Department and Production Department, communicated with Yu Aijun for many times, and finally determined the technical details
such as the filling plan, process conditions, pressure drop and so on of the catalyst in less than half a year.

On June 19, 2022, with the feed capacity of Sinopec's 800,000-ton diesel hydrogenation unit gradually increased from 60 tons/hour to 130 tons/hour, and all products were qualified, the one-time start-up was successful, which also marked the successful completion of various tasks in the "Process Optimization and Catalyst Suitability Research of Straight Diesel Hydrogenation Unit" jointly developed by CNOOC Development Tianjin Institute and Sinojet Petrochemical, and achieved results beyond expectations
.

"The successful start-up of the catalyst is not only a practice of the two enterprises to deepen the reform of state-owned enterprises and practice the route of 'research, production and application', but also a successful exploration
to implement the major strategy of coordinated development of Beijing-Tianjin-Hebei.
" Ma Zhiyuan, manager of the technical management department of Sino-Czech Petrochemical, said
.
The replacement of the TH series hydrorefining catalyst greatly released the production capacity
of the plant.
The calibration results show that the operation of the device is stable after transformation, and the operating temperature, radial temperature rise and product quality of the catalyst are better than the design index
.
While ensuring product quality, not only the pressure fluctuation of the reaction system was eliminated, but also the feed capacity of the device was increased from 90 tons/hour before shutdown to 130 tons/hour, an increase of nearly 40%
over the previous period.
In the past 6 months of operation, the plant has not only completed the task of ensuring diesel supply, but also increased the efficiency by more than 36 million yuan, becoming a new profit growth point
for Sino-Jet Petrochemical.

"In the future, CNOOC Development Tianjin Institute will rely on the existing technology and foundation, expand new cooperation fields and technological innovation points with brothers in the CNOOC system, and promote the company's development and speed
up quality with new ideas and new measures.
" Zhang Jingcheng, chief engineer of the chemical division of CNOOC Development Tianjin Institute, said
.
(Qu Zhaogui, Zhang Huaze).