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The operating cycle is nearly doubled and the processing depth is significantly improved
The operating cycle is nearly doubled and the processing depth is significantly improvedRecently, Sinopec Dalian Petrochemical Research Institute and Guangzhou Engineering Co.
, Ltd.
jointly developed fluidized bed and fixed-bed combined technology (combined bed residue hydrogenation technology) through the review organized by the Science and Technology Department of Sinopec Group
.
Experts believe that the technology has the characteristics of strong adaptability to inferior raw materials, good system stability, long operation cycle and high hydrogen content of hydrogenated heavy oil.
The operation cycle can be extended by 50% to 100% compared with traditional fixed beds
.
Experts suggest speeding up the construction of demonstration projects and promoting industrial applications
The composite bed residual oil hydrogenation technology is a heavy oil deep processing technology developed by Sinopec in response to the transformation of the refining structure and to achieve the goal of "one repair in five years" of the refining unit
.
The technology is based on the STRONG fluidized bed residue hydrogenation technology and S-RHT fixed-bed residue hydrogenation technology, one of the top ten technology brands of Sinopec, and uses fluidized bed reactor as a protective reactor for fixed-bed residue hydrogenation.
After more than 20 years of continuous development, S-RHT fixed-bed residue hydrogenation technology has accumulated experience in extending plant operation and improving product properties.
At present, S-RHT ranks first in the domestic catalyst market and has achieved technology export
.
"In order to cooperate with the research and development of composite bed technology, Dalian Research Institute has newly developed a fixed-bed hydrogenation catalyst and grading technology suitable for long-period operation, increasing the porosity and fouling capacity of the fixed-bed protection reactor bed, and improving the hydroprocessing catalyst The metal tolerance and hydrogenation activity have further improved the processing depth and product quality of inferior residual oil
.
” said Guo Rong, the technical leader of the project
It is understood that China currently has more than 20 fixed-bed residue hydrogenation units with a processing capacity of more than 2 million tons per year.
The successful development of composite bed residue hydrogenation technology provides technical means for the iterative upgrade of these units
.
The composite bed residual oil hydrogenation technology can not only significantly increase the processing depth, achieve "use of the material" and "eat dry and squeeze", it can also effectively extend the operation cycle, improve economic and environmental benefits, and realize the intrinsic safety of the device
