CAJ | 학술논문

以聚乙二醇/丙三醇（ m（聚乙二醇）∶m（丙三醇）＝4∶1）为液化剂，研究了硫酸催化橡胶籽壳粉在多元醇体系的液化反应，探讨了不同反应因素对液化反应的影响，同时通过反应时间与液化率的关系，揭示了液化产物的性质随反应时间变化的规律。结果表明：当催化剂用量为8％、反应温度150℃、V （液化剂）∶m （橡胶籽壳）＝4 mL∶1 g、液化反应时间90 min时，其液化产率高达94．32％。同时，橡胶籽壳液化符合二级动力学反应，活化能Ea＝20．60 kJ/mol，指前因子A＝3．6598 s-1，ΔH＝17．09 kJ/mol，ΔS＝-245．34 J/mol，ΔG＝120．91 kJ/mol，表明体系较易进行，在外界供能的前提下，体系的有序性发生了变化，反应形成了某种形式的协同的过渡态，体系变得复杂。
이취을이순/병삼순（ m（취을이순）∶m（병삼순）＝4∶1）위액화제，연구료류산최화상효자각분재다원순체계적액화반응，탐토료불동반응인소대액화반응적영향，동시통과반응시간여액화솔적관계，게시료액화산물적성질수반응시간변화적규률。결과표명：당최화제용량위8％、반응온도150℃、V （액화제）∶m （상효자각）＝4 mL∶1 g、액화반응시간90 min시，기액화산솔고체94．32％。동시，상효자각액화부합이급동역학반응，활화능Ea＝20．60 kJ/mol，지전인자A＝3．6598 s-1，ΔH＝17．09 kJ/mol，ΔS＝-245．34 J/mol，ΔG＝120．91 kJ/mol，표명체계교역진행，재외계공능적전제하，체계적유서성발생료변화，반응형성료모충형식적협동적과도태，체계변득복잡。
The research was conducted to study the rubber seed shell liquefied reaction in polyol system to explore the liquefied reaction influence on different reaction conditions by using polyethylene glycol/glycerol as liquefied agent and sulfuric acid as catalysis.With the relation between the reaction time and the liquefaction ratio, the rule concerning the variation of liq-uefied product properties was revealed with reaction time changing .When the catalysis accounts for 8%, the reaction tem-perature is150 ℃, the rate of liquid to raw material is 4 ∶1 and the reaction time is 90 min and the liquation ratio can reach up to 94.32%.The liquefaction of rubber seed shell meets up with the rule of second order kinetics reaction.The activation energy Ea=20.60 KJ/mol, the pre-exponential factor A=3.659 8 s-1 ,ΔH=17.09 kJ/mol,ΔS=-245.34 J/mol and ΔG=120.91 kJ/mol.Therefore, the experimental system can be operated easily.Outside energy supply, the experimental system ordering changes, the reaction forms a kind of concerted transition state, and the system becomes complicated.