本文選題：二級毛細撞擊流反應器 + 微觀混合性能�。� 參考：《北京化工大學》2015年碩士論文

【摘要】：微通道反應器和撞擊流反應器都能夠很好地強化流體的微觀混合性能,實現(xiàn)化工過程強化,本實驗室結(jié)合二者的優(yōu)點設(shè)計并構(gòu)建了毛細撞擊流反應器。毛細撞擊流反應器不僅具有良好的微觀混合性能,而且制備工藝簡單。但在無預混操作的條件下,單級的毛細撞擊流反應器只能實現(xiàn)兩種反應組分的連續(xù)操作,因此,一種能夠?qū)崿F(xiàn)多組分反應體系連續(xù)操作的二級毛細撞擊流反應器應運而生。本論文首先運用實驗和模擬方法,研究了入口雷諾數(shù)和第二級流量比對二級毛細撞擊流反應器微觀混合性能的影響,模擬結(jié)果與實驗結(jié)果吻合良好,都表明入口雷諾數(shù)和第二級流量比會顯著影響流體微觀混合性能；接著,運用模擬方法進一步研究了第一級等徑三通夾角、中間毛細管長度和中間毛細管直徑對溶液預混效果的影響,結(jié)果表明最佳第一級等徑三通夾角為180°,中間毛細管長度存在一個最適宜臨界值,在相同進口雷諾數(shù)條件下,中間毛細管直徑越小越好；最后,在對二級毛細撞擊流反應器有一定了解的基礎(chǔ)上,用其制備了Ni-Co-O復合材料,并考察了鎳鈷總離子濃度和陳化溫度對材料形貌與電化學性能的影響,同時驗證了二級毛細撞擊流反應器在多組分材料合成領(lǐng)域的優(yōu)勢。
[Abstract]:Both microchannel reactor and impinging flow reactor can enhance the micro-mixing performance of fluid and realize chemical process strengthening. The capillary impinging flow reactor was designed and constructed by combining the advantages of microchannel reactor and impinging flow reactor. Capillary impinging flow reactor not only has good micro mixing performance, but also has simple preparation process. But under the condition of no premixing, the single stage capillary impinging flow reactor can only realize the continuous operation of two kinds of reaction components. Therefore, a two-stage capillary impinging flow reactor which can realize the continuous operation of multicomponent reaction system emerges as the times require. In this paper, the influence of the inlet Reynolds number and the second order flow ratio on the micro-mixing performance of the two-stage capillary impinging flow reactor is studied by means of experiments and simulation methods. The simulation results agree well with the experimental results. It is shown that the inlet Reynolds number and the second order flow ratio have a significant effect on the micro mixing performance of the fluid. The effect of the length of the intermediate capillary and the diameter of the intermediate capillary on the effect of solution premixing is obtained. The results show that the optimum angle of the first order equal diameter three-way is 180 擄, and there exists a suitable critical value for the length of the intermediate capillary under the condition of the same inlet Reynolds number. The smaller the diameter of the capillary, the better. Finally, on the basis of a certain understanding of the second-order capillary impinging flow reactor, the Ni-Co-O composite was prepared. The effects of the concentration of nickel and cobalt ions and aging temperature on the morphology and electrochemical properties of the materials were investigated, and the advantages of the second-order capillary impingement flow reactor in the field of multicomponent material synthesis were verified.
【學位授予單位】：北京化工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TQ052

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本文編號：1817558