Qilu ethylene feedstock optimization officially entered the fast lane

Qilu Zhenhai ethylene plant in the gap where as deputy director of Qilu Petrochemical olefins plant , Wang Jiping feel raw material structure is a " flawed" : ? " Zhenhai ethylene feedstock severity of the breakdown of the components is very clear, different components into different cracking furnace, that is the real ' molecular ' management , that is the real integrated refining . " speaking, Wang Jiping look of admiration .
Monthly analysis of economic activity will , ethylene feedstock is one of the elements necessary to speak : "This year in February we ethylene plant materials high proportion of 49%, Shanghai No.2 cracker expensive raw material accounts for only 27% of the cost of one ton of raw materials on the high 576 yuan , invisible increases the cost of 70 million , " talked about here , deputy Chief Accountant Mengxiang Feng olefin plant tone is particularly heavy.Washi tape


Ethylene feedstock optimization is also director Liu Weiguo scratching problem, " 2014 ethylene feedstock cost pressure is very large, the optimization of ethylene feedstock is a top priority of our work ," the director Liu Weiguo early ethylene feedstock optimization work will be placed in an important position on .

In fact, back in 2012 , olefins plant would throw off the ethylene feedstock optimization "LT " : in September 2012 , set up a special tank olefins plant refinery began receiving light naphtha , took the first division of the reservoir step . 2013 , take advantage of opportunities overhaul , olefins plant has completed the process of the transformation of storage division , in June , a separate light naphtha into ethylene plant , officially achieved a sub- storage division. In January, the company established a leading group of chemical losses synergistic research to determine the optimized technological measures eight aspects of ethylene feedstock optimization as an important content. Company leaders in command of optimization research, completely breaking the plant boundaries to ethylene feedstock optimization has officially entered the fast lane.

"To improve the optimization of raw materials , the device must first Mozhun own temperament and appetite" , olefin Changfuchangchang Wang Jiping cited the following example . Ethylene feedstock has more than 10 kinds of naphtha cracking bottom oil , light hydrocarbons , different components , which are not the same depth of cracking . With advanced software cracking depth control SPYRO , olefins plant operating conditions are simulated weekly cracking furnace , combined with online chromatographic analysis comparing the various components analysis and simulation evaluation, to find the best ratio of raw materials and cracking depth, mutual supply of raw materials for the refinery , they will actively reflect , under the coordination of the company to further improve the quality of refinery feedstock. Month they will be the amount of ethylene feedstock analysis to predict and optimize the cracking furnace operating mode mixing to minimize cracking and improve the utilization of raw materials .Sellotape


This year, the ethylene plant is maintained at a low load operation . To maximize the potential of the device , olefins plant is also actively seeking new " rations " for the device . In January, the olefins plant aromatics plant rich in ethane, propane gas recovery into the cracking furnace for raw materials, only two months before recycling 1,733 tons , can plug more than 720 million. Not only that, they aromatics unit raffinate component of the analysis , but also as a cracking furnace quality raw materials for processing, to some extent alleviate the problem of shortage of raw materials . According to the cracking furnace processing capacity , the company is also fully exploit the advantages of rich resources, refining , naphtha cracking furnaces use of resources in line with the screening , the purchase when the price is right .Wholesale masking tape


Wang Jiping , deputy director in the eyes , light hydrocarbon cracking furnace is " refined grains ." However, the lack of light hydrocarbon resources and the problems of too few light hydrocarbon cracking furnace , has dragged the hind legs of ethylene feedstock optimization , device efficiency potential has not been fully realized. Integrated refining plant optimization company to seize the favorable opportunity , on the one hand to increase the coordination of the procurement department to purchase the amount of light hydrocarbons , on the other hand the plant also accelerated the 5th , the 6th transformation of light hydrocarbon cracking furnace , increasing Light hydrocarbon processing capacity ethylene plant . According to reports, the second half of 2014 , after two light hydrocarbon cracking furnace is put into use , the proportion of naphtha reduced by 9.9% compared with the beginning of the monthly cost can be reduced by 500 million. October Qingdao LNG project will be completed and put into production, its annual output of 200,000 tons of ethane to ethylene plant also provides a better quality of raw materials. "We've done the material balance and efficiency calculations, also submitted a feasibility study to the headquarters plan , then the cost of raw materials a month we will be able to reduce the more than 900 million ," it said , Wang Jiping eyes full of expectation .Masking tape