發(fā)布時(shí)間：2018-05-17 20:56

  本文選題：柴油 + 液相加氫　； 參考：《石油學(xué)報(bào)(石油加工)》2017年04期

【摘要】：在上流式固定床加氫中試實(shí)驗(yàn)裝置上對(duì)柴油液相加氫過程中的化學(xué)氫耗進(jìn)行研究,根據(jù)不同反應(yīng)物的加氫反應(yīng)方程推導(dǎo)出不同加氫反應(yīng)的氫耗計(jì)算式,并建立了氫耗動(dòng)力學(xué)模型。研究發(fā)現(xiàn),在上流式柴油液相加氫過程中,前段催化劑床層的化學(xué)氫耗遠(yuǎn)遠(yuǎn)大于后段催化劑床層,70%的化學(xué)氫耗集中在前20%的催化劑床層上,從而導(dǎo)致后段床層H2濃度過低而影響加氫反應(yīng)的進(jìn)行;在進(jìn)料量200 mL/h、氫/油質(zhì)量比4.244×10-3、反應(yīng)溫度350℃和反應(yīng)壓力8 MPa條件下,化學(xué)氫耗計(jì)算值與實(shí)測(cè)值的平均相對(duì)誤差為2.11%,表明推導(dǎo)的氫耗計(jì)算式準(zhǔn)確、可靠;建立的氫耗動(dòng)力學(xué)模型在預(yù)測(cè)化學(xué)氫耗時(shí)的相對(duì)誤差小于2.0%,表明所建模型合理。
[Abstract]:The chemical hydrogen consumption during liquid phase hydrogenation of diesel oil was studied in a pilot plant of up-flow fixed-bed hydrogenation. According to the hydrogenation reaction equation of different reactants, the calculation formula of hydrogen consumption for different hydrogenation reactions was derived. The kinetic model of hydrogen consumption is established. It is found that in the process of liquid phase hydrogenation of upflow diesel oil, the chemical hydrogen consumption of the front catalyst bed is much higher than that of the latter catalyst bed, and 70% of the chemical hydrogen consumption is concentrated on the first 20% catalyst bed. Therefore, the lower H _ 2 concentration in the later bed will affect the hydrogenation reaction, under the conditions of feed quantity 200mL / h, hydrogen / oil mass ratio 4.244 脳 10 ~ (-3), reaction temperature 350 鈩，

本文編號(hào)：1902834