CAJ | 학술논문

为了研究艾丁褐煤液化反应动力学，通过对煤液化产物进行分级处理，得到SO24-/Fe2 O3催化艾丁褐煤温和液化动力学模型，通过 origin 软件回归出各反应速率常数及相应的表观活化能和指前因子，最后对褐煤温和液化分级反应工艺提出初步设想。结果表明，模型能够较好地模拟动力学试验结果；液化反应中沥青质向酚转化的活化能为267.62 kJ/ mol，该过程对温度较敏感；反应组分的主要转化为油和沥青质，分别占48%和37%；随反应时间的延长，由沥青质转化得到的油和酚的量逐渐增加，由反应组分转化得到的油和酚的量先增加后趋于恒定，在一定时间内，反应组分是直接转化成油和酚的主要来源；沥青质向油的转化是油增加的速率控制步骤，沥青质向酚的转化是酚增加的速率控制步骤，在煤液化工艺流程中，实行分级加氢液化有利于控制、提高油和酚产率。
위료연구애정갈매액화반응동역학，통과대매액화산물진행분급처리，득도SO24-/Fe2 O3최화애정갈매온화액화동역학모형，통과 origin 연건회귀출각반응속솔상수급상응적표관활화능화지전인자，최후대갈매온화액화분급반응공예제출초보설상。결과표명，모형능구교호지모의동역학시험결과；액화반응중력청질향분전화적활화능위267.62 kJ/ mol，해과정대온도교민감；반응조분적주요전화위유화력청질，분별점48%화37%；수반응시간적연장，유력청질전화득도적유화분적량축점증가，유반응조분전화득도적유화분적량선증가후추우항정，재일정시간내，반응조분시직접전화성유화분적주요래원；력청질향유적전화시유증가적속솔공제보취，력청질향분적전화시분증가적속솔공제보취，재매액화공예류정중，실행분급가경액화유리우공제、제고유화분산솔。
In order to study Aiding lignite liquefaction reaction kinetics,a kinetic model for Aiding lignite mild liquefaction reaction cata-lyzed by SO2-4 / Fe2 O3 was built using lumped kinetic method,where the liquefaction products were fractioned by solvents. The reaction rate constant,activation energy and pre-exponential factor were calculated by origin software. The initial idea of lignite mild liquefaction frac-tional reaction process was put forward. The results showed that the model could better fitting the kinetic experimental results. Activation energy of asphaltene to phenols in the liquefaction reaction was 267. 62 kJ/ mol,and the process was more sensitive to temperature. The main product from reaction components was oil and asphaltene,which accounted for 48% and 37% respectively. With the increase of reac-tion time,the amount of oil and phenol from asphaltene gradually increased,the amount of oil and phenol from reaction components in-creased first,then tended to be constant. In a certain time,the main source of oil and phenol was reaction components. The two reactions of asphaltene to oil and phenol controlled the oil and phenol formation rates respectively. In coal liquefaction process,it was beneficial to con-trol and improve oil and phenol yield by hierarchical hydrogenation liquefaction.