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  本文選題：氫網(wǎng)絡(luò)　切入點：數(shù)學(xué)規(guī)劃法　出處：《西安石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著加氫規(guī)模的不斷擴大,氫氣成本已成為煉油企業(yè)原料成本中僅次于原油成本的第二位成本要素。我國汽、柴油加氫工藝的綜合氫耗在1.2%左右,遠高于國外0.45%的綜合氫耗,在用氫經(jīng)濟性方面與國外存在相當(dāng)大的差距,在滿足不斷增長的用氫需求的同時降低氫氣成本和消耗是煉化企業(yè)用氫系統(tǒng)的核心需求。本文運用數(shù)學(xué)規(guī)劃法建模,對某煉廠的氫氣系統(tǒng)進行了優(yōu)化研究,通過在模型中添加提純裝置約束和網(wǎng)絡(luò)復(fù)雜程度約束,使氫網(wǎng)絡(luò)的數(shù)學(xué)規(guī)劃分析更全面、結(jié)果簡單可行,綜合考慮各含氫流股氫純度、雜質(zhì)含量、壓力等性質(zhì),減少了制氫裝置負荷,得到氫網(wǎng)絡(luò)的最佳供應(yīng)方式,與原網(wǎng)絡(luò)相比制氫負荷降低32.81%,氫氣利用率提高7.3%,顯著提高了企業(yè)的經(jīng)濟效益,實現(xiàn)資源的充分利用。本文還通過對一小型煉廠氫氣系統(tǒng)的運行數(shù)據(jù)監(jiān)測和產(chǎn)氫、用氫、和氫回收三個環(huán)節(jié)分析,并對氫氣系統(tǒng)中存在的富氫資源做燃料造成浪費和制氫PSA未充分利用等問題,制定了相應(yīng)的優(yōu)化方案,并提出了合理的操作改進建議。計算結(jié)果表明加氫馳放氣全作為制氫原料、重整氫送入PSA裝置的改造方案的改造工程量小、經(jīng)濟性好,氫氣產(chǎn)量可增加16.6%,有效緩解了氫供應(yīng)不足的矛盾,促進了汽、柴油質(zhì)量的持續(xù)改善。制氫物耗降低17.5%,實現(xiàn)了節(jié)能降耗增效的目的。
[Abstract]:With the continuous expansion of hydrogenation scale, hydrogen cost has become the second most important factor in the feedstock cost of oil refining enterprises after crude oil cost. The comprehensive hydrogen consumption of China's steam and diesel hydrogenation process is about 1.2%, which is much higher than that of foreign 0.45%. There is a big gap between the economy of using hydrogen and that of foreign countries. It is the core requirement of hydrogen system for refinery enterprises to reduce the cost and consumption of hydrogen while satisfying the increasing demand of hydrogen. In this paper, the mathematical programming method is used to model the system. The optimization of hydrogen system in a refinery is studied. By adding purification device constraints and network complexity constraints to the model, the mathematical planning and analysis of hydrogen network are more comprehensive, the results are simple and feasible, and the hydrogen purity of each hydrogen stream is considered synthetically. Because of impurity content and pressure, the load of hydrogen production unit is reduced, and the optimum supply mode of hydrogen network is obtained. Compared with the original network, the hydrogen production load is reduced by 32.81%, the hydrogen utilization ratio is increased by 7.3%, and the economic benefit of the enterprise is improved significantly. To realize the full utilization of resources. This paper also analyzes the operation data of a small refinery hydrogen system and hydrogen production, hydrogen recovery and hydrogen recovery. The problems such as waste caused by hydrogen rich resources and insufficient utilization of hydrogen PSA in hydrogen production system are also discussed, and the corresponding optimization scheme is worked out. The calculation results show that hydrogenation gas is used as raw material for hydrogen production, and the revamping scheme of reforming hydrogen into PSA unit is of small quantity and good economy. The hydrogen production can be increased by 16.6b, which effectively alleviates the contradiction of the shortage of hydrogen supply, promotes the continuous improvement of the quality of steam and diesel oil, reduces the hydrogen production consumption by 17.5and achieves the purpose of saving energy, reducing consumption and increasing efficiency.
【學(xué)位授予單位】：西安石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TE624;TQ116.2

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本文編號：1588209