本文關(guān)鍵詞：催化裂化裝置反應(yīng)再生系統(tǒng)操作參數(shù)優(yōu)化　出處：《大連理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 催化裂化 21集總動力學(xué)模型 反應(yīng)-再生系統(tǒng) 操作參數(shù)優(yōu)化

【摘要】：作為液化氣、汽油、柴油等氣體和輕質(zhì)油產(chǎn)品的主要生產(chǎn)裝置,催化裂化在煉廠中的地位舉足輕重,當(dāng)今社會環(huán)境問題突出、燃料油產(chǎn)品亟待升級、高品質(zhì)汽柴油的需求日益增加,這就對催化裂化裝置提出更高要求。如何優(yōu)化催化裝置反應(yīng)-再生系統(tǒng)操作參數(shù)、增加輕質(zhì)油收率、提高產(chǎn)品質(zhì)量、最大化經(jīng)濟(jì)效益,成為熱門研究課題。本文以21集總動力學(xué)模型為基礎(chǔ),探究流化床催化裂化反應(yīng)的內(nèi)在機理,旨在準(zhǔn)確預(yù)測產(chǎn)品分布,優(yōu)化操作參數(shù),提高產(chǎn)品液收和經(jīng)濟(jì)效益。針對某石化65萬噸／年催化裂化裝置,使用HYSYS模擬軟件中FCC模型對裝置進(jìn)行模擬,并使用進(jìn)料和產(chǎn)品數(shù)據(jù)校準(zhǔn)集總模型參數(shù),結(jié)果在誤差允許范圍之內(nèi)。首先,對常規(guī)催化裂化,以產(chǎn)品液收和經(jīng)濟(jì)效益為目標(biāo)函數(shù),分別對反應(yīng)-再生系統(tǒng)中,反應(yīng)溫度、進(jìn)料預(yù)熱溫度、反應(yīng)壓力、反應(yīng)時間和回?zé)挶鹊泉毩⒆兞窟M(jìn)行單變量靈敏度分析,考察其對劑油比、轉(zhuǎn)化率、產(chǎn)品分布和產(chǎn)品性質(zhì)的影響,得到每個獨立變量的最佳操作條件。其次,論文研究了冷再生催化劑循環(huán)催化裂化工藝,由于采用再生劑外取熱技術(shù),使再生劑溫度不受再生器燒焦效果限制,變得獨立可調(diào),成功解決反應(yīng)溫度、進(jìn)料預(yù)熱溫度、再生劑溫度和劑油比等參數(shù)相互耦合的問題,將影響提升管反應(yīng)器反應(yīng)的本質(zhì)參數(shù)概況為反應(yīng)溫度、劑油比、反應(yīng)時間和反應(yīng)壓力,保持其他參數(shù)不變,對反應(yīng)溫度和劑油比進(jìn)行靈敏度分析。研究發(fā)現(xiàn),與常規(guī)催化裂化不同,當(dāng)劑油比變化時,最佳反應(yīng)溫度不變,反之亦然,即反應(yīng)溫度和劑油比對反應(yīng)的影響是相互獨立的,可以分別進(jìn)行優(yōu)化。進(jìn)一步,使用Optimizer優(yōu)化器同時進(jìn)行多變量優(yōu)化,發(fā)現(xiàn)無回?zé)挄r,應(yīng)采用較大的劑油比、較低的反應(yīng)時間、適中的反應(yīng)溫度的操作條件；有回?zé)捛闆r下,應(yīng)采用大回?zé)挶?低劑油比,以及較低的反應(yīng)溫度,以提高柴油收率和液收。無論是常規(guī)催化裂化還是冷再生催化劑循環(huán)催化裂化工藝,優(yōu)化后,液收和經(jīng)濟(jì)效益均大幅提高,對于現(xiàn)場操作,有一定指導(dǎo)意義。
[Abstract]:As the liquefied gas, gasoline, diesel oil and gas producing device and light oil products, played an important role in catalytic cracking refinery in today's society, environment problems, the urgent need to upgrade the fuel oil products, high-quality gasoline and diesel oil demand is increasing, the catalytic cracking device is put forward higher request. How to optimize the catalytic reaction device the system operating parameters of regeneration, increase the yield of light oil, improve product quality, to maximize the economic benefits, has become a hot research topic. This paper is based on the 21 lumped kinetic model, to explore the intrinsic mechanism of fluid catalytic cracking reaction, to predict the product distribution, optimizing operation parameters, improve product liquid yield and economic benefits. For a petrochemical 650 thousand tons / year catalytic cracking unit, using HYSYS device simulation software simulation in FCC model, and use the feed and product data calibration lumped model, Results in the allowable error range. Firstly, the conventional catalytic cracking, the product liquid yield and economic benefit as the objective function, respectively. The reaction temperature reaction regeneration system, feeding, preheating temperature, reaction pressure, reaction time and recycle ratio as independent variables for single variable sensitivity analysis, to study the oil agent ratio, conversion rate, influence product distribution and properties, each independent variable optimal operating conditions. Secondly, the research of cold regeneration catalyst catalytic cracking process, due to thermal technology uses the regeneration agent, the agent is not affected by the temperature of coke burning effect, become independent and adjustable, successfully solve the reaction the feed temperature, preheating temperature, regeneration temperature and catalyst / oil ratio and other parameters of the mutual coupling problem will affect the nature of the reactor parameters enhance the reaction to the reaction temperature, catalyst oil ratio, reaction time and reaction Pressure, keeping the other parameters unchanged, the reaction temperature and the ratio of catalyst to oil sensitivity analysis. The study found that different from the conventional catalytic cracking, when the ratio of catalyst to oil changes, the optimal reaction temperature constant, and vice versa, the effects of reaction temperature and catalyst to oil ratio on the reaction is independent of each other, can be separately optimized further. At the same time, using the Optimizer optimizer multi variable optimization, found no recycle, should be larger than the solvent to oil ratio, reaction time, low reaction temperature, moderate operating conditions; a recycling situation, the recycle ratio, low solvent oil ratio, and low reaction temperature, to increase the yield of diesel oil and liquid yield. Both conventional catalytic cracking or cold regeneration catalyst catalytic cracking process, after optimization, the liquid yield and economic benefit are improved greatly, for on-site operation, has a certain significance.

【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TE966

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 黃滿滿;李倩;張磊;;催化裂化工藝及催化劑的技術(shù)進(jìn)展[J];化學(xué)工程與裝備;2014年07期

2 趙倩倩;;我國汽油柴油產(chǎn)品質(zhì)量升級問題探討[J];中國石油和化工標(biāo)準(zhǔn)與質(zhì)量;2013年20期

3 劉艷;;多產(chǎn)柴油重油催化裂化催化劑研究進(jìn)展[J];精細(xì)石油化工進(jìn)展;2013年03期

4 孟剛;;渣油催化裂化技術(shù)進(jìn)展[J];科技創(chuàng)新與應(yīng)用;2012年23期

5 彭震宇;柳召永;;冷再生劑循環(huán)催化裂化工藝在廣西東油瀝青有限公司的應(yīng)用[J];石化技術(shù)與應(yīng)用;2012年01期

6 常劍;孟凡東;王龍延;閆鴻飛;;催化裂化低溫接觸大劑/油比技術(shù)理念與實踐[J];石油學(xué)報(石油加工);2011年03期

7 朱小順;文彬;屈葉青;伍小駒;;不同類型載體重油催化裂化催化劑研究[J];廣州化工;2011年07期

8 周t，

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