Project Name

Development and large-scale application of key technologies for low-carbon and high-efficiency hydrocracking

Nominated Unit

Cangzhou City

PROJECT INTRODUCTION

This project belongs to the field of petrochemical industry. Diesel products are an indispensable strategic energy source, which plays an inestimable role in ensuring national economic and social development and national defense security. Hydrocracking technology can convert inferior wax oil components into high value-added diesel products. High-quality diesel products are required to be rich in isoparaffins and single-ring long-chain naphthenes. Wax oil contains aromatics, naphthenes and paraffins, but the molecular composition and structure of hydrocarbons in the hydrocracking reaction zone of wax oil change dynamically. The existing hydrocracking technology often uses a single catalyst system, which can not match the dynamic change law of hydrocarbon molecular composition in different reaction zones, which is easy to cause the problem of insufficient conversion of cyclic hydrocarbons and excessive cracking of paraffins, which is directly reflected in the unqualified quality of diesel oil or the decrease of yield. In addition, the hydrogenation reaction is a strong exothermic reaction. In order to prevent the temperature from flying, a large amount of cold hydrogen needs to be injected into the reaction process. The hydrogen consumption and carbon emissions of the device are high, which seriously affects the green and sustainable development of enterprises. InUnder the goal of "double carbon", low energy consumption and high quality diesel products are major technical problems.

Based on the in-depth study and understanding of the molecular composition, structure and reaction sequence of hydrocarbons in the hydrocracking reaction zone, a low-carbon and high-efficiency hydrocracking technology with high-quality diesel oil production was invented.

1The first to promote the efficient ring-opening of cyclic hydrocarbons.-Paraffin isomerization retention reaction zoning strengthening control method, the first to achieve industrial application. The concentration of polycyclic aromatic hydrocarbons with the strongest adsorption capacity in the initial reaction zone of hydrocracking is high, which is easy to be adsorbed in the active center of the catalyst, and the catalyst with strong aromatic ring-opening performance is used to promote the efficient conversion of polycyclic aromatic hydrocarbons to monocyclic aromatic hydrocarbons, which is enriched in light components, which can significantly improve the cetane number of diesel oil; the lower reaction zone adsorption energy weak paraffin concentration is high, the use of low acid density and isomerization ability of the catalyst, promote the conversion of normal paraffin to isoparaffin, can reduce the diesel oil condensation point, broaden the diesel distillation range, improve the yield of diesel oil.

2, the invention has a step hole structure, high.Bacid ratioYMolecular sieve, the development of acid center can be good access and diffusion ability of the catalyst, strengthen the efficient conversion of polycyclic aromatic hydrocarbons, improve the quality of diesel.

3The invention of the acid center anchor point limited domain segmentation active phase, directional plastic modulation technology, the development of cycloalkane open-loop selective good hydrocracking catalyst, promote the ring-open chain reaction of cycloalkane, increase the diesel fuel value.

4The invention of the normal alkane-oriented conversion, reduce the secondary cracking method, improve the isomeric retention capacity of the normal alkane, reduce the condensation point of diesel oil, improve the yield of diesel oil.

5Invention of hydrocracking technology to improve the utilization rate of reaction heat and reduce energy consumption. Along the reaction zone to adapt the activity ladder to reduce the shaped catalyst system, the bed layer does not need to be a large amount of cold hydrogen, the reactor effluent material temperature level increased.15Above ℃, the pressure drop decreases50%Reduced energy consumption20%Carbon emission reduction10million tons/Year.

with foreign countriesUOPCompared with Shell technology, the diesel cetane number produced by this technology is improved.2Units, yield improvement10more than a percentage point.

The project is authorized invention patent10Pieces, publishedSKIINGPaper10overall in the international leading level. Hebei Xinhai Chemical Group built the country's first industrial demonstration device, nearly3Annual new profit10Billion yuan, helping the company to become a national chemical enterprise.500Strong (first in Hebei Province). Hebei Xinhai Chemical Group to build the country's first industrial plant as a demonstration, to promote the export of this technology to Russia.200million tons/In the hydrocracking unit, the yield and quality of diesel oil are obviously better than Shell technology, which has been recognized by the international market, strongly supports the construction of "Belt and Road Initiative" in China, and has remarkable economic and social benefits.

Main completion units and innovation promotion contribution

Hebei Xinhai Chemical Group Co., Ltd. put forward the demand of reducing the condensation point of diesel products produced by hydrocracking, broadening the range of distillation range and improving the yield of diesel products, and put forward the concept of strengthening the gradual reaction zone of hydrocarbon molecules in the hydrocracking reaction zone. It is recommended to adopt a catalyst grading system to achieve the purpose of ring-opening cracking of cyclic hydrocarbons and retention of paraffin isomerization. Responsible for the company's hydrocracking unit design scheme comparison, unit construction, catalyst loading, start-up and technical calibration, etc., to ensure the long-term stable operation of the unit based on the good operation data of the unit, write relevant papers, promote the effect of technical application. As an important national demonstration device, it provides application case basis for the catalyst and technology developed by the project to be extended to foreign countries.

Promotion and application and economic and social benefits

Application

2018Hebei Xinhai Chemical Industry Group150million tons/The hydrocracking unit used the gradual reaction of hydrocarbon molecules to enhance the production of high value-added products hydrocracking technology was completed and put into operation, processing straight-run wax oil and coking wax oil raw materials, mainly to produce high-quality clean diesel products as the goal. Since the operation of the device, the overall operation is in good condition, which meets the production requirements of the enterprise and has significant economic benefits.

The development and large-scale application of key technologies for low-carbon and high-efficiency hydrocracking were the first to be successfully applied in Hebei Xinhai Chemical Group, creating a precedent for the maximum production of high value-added target products at the molecular refining level. Under the guidance of good application results and advanced technology concepts, the series of catalysts developed and related technologies have been successfully applied not only in China.60The remaining sets of hydrocracking units, and three sets of hydrocracking units sold abroad, have been highly recognized by domestic and foreign manufacturers and reached the international leading level.

economic benefit

Hebei Xinhai Chemical Group built the country's first industrial demonstration device, nearly3Annual new profits of more than 100 million yuan.

social benefit

1We have developed oil refining technologies that support the sustainable development of the national economy and meet China's national conditions. Through the implementation of the project technology, the diesel output of oil refining enterprises has been effectively improved, the problem of large demand for diesel oil for freight vehicles in Hebei ports has been met, and the rapid and sustainable economic development of Hebei Province has been promoted.

2The hydrocracking technology for the production of high value-added products by the gradual reaction of hydrocarbon molecules with energy saving and consumption reduction has been developed. Under the goal of carbon neutrality and carbon peak, the energy consumption and carbon emissions of the plant production are significantly reduced, providing strong technical support for the green and healthy development of enterprises.

Catalog of representative papers and monographs

1Tian Chen, Xu Hao, Zhang Shaoyan, etc., to maximize the production of middle distillate hydrocracking technology for industrial applications.[J],Guangzhou Chemical,2022, 9(49): 25-28

Catalogue of main intellectual property certificates

Mainly complete the person situation table (ranking, name, technical title, work unit, technical and creative contribution to the project, and previous awards)

Rankings

Name

Technical title

Work Unit

Complete Unit

Contribution

Winning situation

3

Tian Chen

Engineer

Hebei Xinhai Chemical Industry Group Co., Ltd

Hebei Xinhai Chemical Industry Group Co., Ltd

13. Technical scheme comparison and suggestion for hydrocracking unit of Hebei Xinhai Petrochemical Company;

2Propose the concept of gradual conversion enhancement of hydrocarbon molecules and optimize the catalyst gradation scheme;

3He presided over the start-up and technical calibration of hydrocracking unit of Hebei Xinhai Petrochemical Company.

6

Zhang Shaoyan

Engineer

Hebei Xinhai Chemical Industry Group Co., Ltd

Hebei Xinhai Chemical Industry Group Co., Ltd

1To preside over the start-up and technical calibration of hydrocracking unit of Hebei Xinhai Petrochemical Company;

23. Collect the operation data of the device, optimize the operation of the device, and ensure the smooth operation of the device.

7

Xu Hao

Engineer

Hebei Xinhai Chemical Industry Group Co., Ltd

Hebei Xinhai Chemical Industry Group Co., Ltd

1Participate in the start-up and technical calibration of hydrocracking unit of Hebei Xinhai Petrochemical Company;

2Optimize the operation device to ensure the smooth operation of the device.

Completing Person Partnership Description

Hebei Xinhai Chemical Group Co., Ltd. AdoptingHydrocracking technology and supporting catalysts for the enhanced production of high value-added products by hydrocarbon molecular gradual reaction developed by Dalian Petrochemical Research Institute of China Petroleum and Chemical Corporation, Tian Chen, Zhang Shaoyan and Xu Hao of Hebei Xinhai Chemical Group Co., Ltd. and Cao Zhengkai of Dalian Petrochemical Research Institute of China Petroleum and Chemical Corporation jointly published a paper 《Industrial application of middle distillate hydrocracking technology to maximize production"

Summary of completed person cooperation relationship

Serial Number

Cooperation mode

Collaborators/Project Ranking

Cooperation time

Results of cooperation

Remarks

1

Co-published papers

Tian Chen, Zhang Shaoyan, Xu Hao, Cao Zhengkai

2018-06To2021-12

Industrial application of middle distillate hydrocracking technology to maximize production