Cold regenerative agent recycling technology FCC device industrial application: leading the new transformation of refining catalytic cracking

"Cold regenerative agent circular catalytic cracking technology (CRC) energy-saving effect is significant, product distribution is optimized, quality is significantly improved, production system operation is safe, the project using this technology has produced considerable economic and environmental benefits, low-carbon operation and green production." Li Qunzhu, chairman of Luoyang Vida Petrochemical Engineering Co., Ltd., is very confident about the economics of the technology they developed, which won the second prize of the 2015 National Science and Technology Progress Award. In the view of industry experts, this technology has raised the overall level of Catalytic Fracking (FCC) technology in China, to some extent, can be said to have achieved the third transformation of catalytic cracking technology

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FCC process is the core of China's refining industry, is the main means of heavy oil lightweight. With the increasing trend of crude oil deterioration and re-quality, and the increasing ratio of catalytic cracking slag oil, the quality of gasoline produced by FCC process has become worse, which has aggravated environmental pollution.
2009-2010, with the rising price of crude oil and the continuous upgrading of national emission standards, China's refining industry energy conservation and consumption reduction, oil quality upgrade pressure is increasing, some small and medium-sized oil refining enterprises the original technology path is not possible, with energy conservation and emission reduction, low-carbon efficiency characteristics of CRC complete sets of technology and equipment finally ushered in the development opportunity.
since the advent of molecular sieve catalysts and lift tube reactions, FCC technology has matured through continuous exploration and improvement. But how to improve the ratio of agent oil, that is, how to solve the contradiction between regeneration temperature, feed temperature, reaction temperature, agent oil ratio, has been the direction of FCC workers at home and abroad.
Vida Petrochemicals began research and development of CRC technology in 2008 with the aim of improving the selectivity of FCC reactions, increasing the yield of light oil, reducing the content of gasoline olefins and sulfur, and building a clean and efficient development model with low energy consumption and low emissions.
Li Qunzhu and other CRC project research and development team after more than ten years of independent research and independent development, a unique approach, has achieved a series of reaction processes, key equipment and optimization and control of a series of core technology and engineering innovations, and achieved the world's first set of industrialization applications.
Jin Chung academician, Yang Qiye academician and other industry experts' appraisal and demonstration opinion pointed out that: CRC technology adopts mature and reliable cold regenerative agent circulation and control technology, scientifically solves the current common reaction temperature, regeneration temperature, feed temperature and agent oil ratio contradiction, overcomes the world problems that have plagued the FCC technical community for more than 30 years, and achieves for the first time the optimization and control of multi-zone optimization and reaction depth of heavy oil catalytic cracking reaction.after the successful development of
CRC technology, China Chemical Oil and Gas Co., Ltd., PetroChina Overseas Plate Guangxi Dong oil asphalt Co., Ltd. eye-opening, the use of CRC technology for technological transformation, so that CRC technology in 1 million tons / year large-scale FCC industrial equipment applications have achieved good economic benefits, accumulated valuable industrial experience.
the operation of industrial equipment shows that CRC technology can improve product quality and reduce the concentration of NOx and SOx in flue gas. Compared with the existing FCC technology at home and abroad, CRC technology light oil yield increased by 1.7 percentage points, energy consumption decreased by 11.6 kg of standard oil / ton of raw materials, catalyst consumption decreased by 30%, per ton of raw material efficiency of 166 yuan, while the quality of production of gasoline and diesel significantly improved, flue gas emissions significantly reduced, of which SOx decreased by 30%, NOx concentration decreased by 40%. Its operating indicators are significantly better than the existing FCC technology, ranking in the international leading level.
June 2014, the project passed the results appraisal organized by the China Petroleum and Chemical Industry Federation and won the first prize of the Petrochemical Federation for scientific and technological progress. In February 2015, the project passed the industrialization demonstration organized by the China Productivity Promotion Center Association, and was highly evaluated by experts such as Jin Chung Academician, who believed that the technology had significant energy saving and emission reduction effects, improved product quality, reduced NOx and SOx concentrations in flue gas emissions, and significant economic and social benefits, and was generally at the leading international level.
the end of 2014, a total of 20 sets of CRC industrial equipment in China have achieved long-term safe and stable operation, adding a total of nearly 5.1 billion yuan in profits and taxes to enterprises.
CRC technology, which achieves low energy consumption, low emission clean and efficient development, has attracted wide attention from the FCC community. Experts said that usually an energy-saving and emission-reduction technology transformation of about 5 years to recover investment is possible, and CRC technology transformation of the investment payback period of only 1 to 3 months.
At present, CRC technology has been granted a number of national invention patents, Luoyang Vida Petrochemical Company has fully independent intellectual property rights, the implementation of CRC technology required all equipment, instruments and materials can also be based in the domestic, and related industries have a strong driving role. The technology is suitable for both new and existing plant modifications, so it has strong market competitiveness and broad market prospects for large-scale industrial applications.