Application Research Of Online Optimization Operation Technology In Ethylene Production Equipment

Taking Online Optimization Technology Application of large-scale ethylene production plant for the study,describes the real-time optimization based on artificial intelligence running and operating control technology,precise control of the production process,reduce equipment energy consumption,improve product yield on purpose It can play a role.It describes the key technology and implementation methods of technical transformation and upgrading required to optimize the use of online technology and operational control operation of the existing ethylene plant cracking furnace system,separation system and hydrogenation systems and other key production unit and carry out.After application of this technology through practical,positive changes in the operation of the device steady rate,material loss rate,product yield and energy consumption and emissions of major economic and technical indicators,to prove use of the technology has practical value.Through practical application in the ethylene plant,the following findings are obtained:1.The use of advanced technology to optimize the operation and control of the operation is the main trend of development at home and abroad for Ethylene Plant.Implementation of technological innovation on an existing device,without the need both to expand the scale of production,but also to control the cost of investment in achieving increased product yield while reducing consumption of raw materials and energy,the apparatus can be improved short-term economic benefits.2.Upgrading the existing DCS control system,the need to apply online modeling techniques,internal model control,closed-loop modeling technology,based on principal component analysis and wavelet analysis of data pre-processing technology,based on NLJ search algorithm multi-objective optimization card edge technology,and intelligent control technology area,is also required for proper reconstruction of the original equipment,adding new instruments measuring instruments.3.After applying online optimization system run by data monitoring,cracking furnace outlet temperature fluctuation range by ± 5? down to within ± 3?,the fluctuation range of the furnace tube temperature deviations are controlled to within ± 5?.4.After separation system implementation Online Optimization Technology,27 control points,26 points steady rate increased by more than 30%,with 24 points smoothness Technical indicators increased by 45%.5.Means in the implementation of online optimization technology to run the main system unit energy consumption decreased by more than 5% of fuel,energy-saving effect is more obvious.Material consumption side,after calculation,can reduce the loss of 4125 tons per year of ethylene.