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利用100mL固定床等温反应器,经过对反应器器壁散热和保温材料温升吸热的校正,用手控热补偿的方式消除其影响以实现绝热操作、模拟绝热反应器。并用该反应器以混合碳四为原料经改性ZnNi/HZSM-5催化进行绝热芳构化,考察了原料预热温度及空速对绝热温升的影响。结果表明,在绝热操作下该反应器基本能达到绝热要求;在芳构化中绝热温升随预热温度的提高及空速的增大而增加,其中空速的影响更显著。校正后的反应器可分别进行等温操作、绝热操作以及等温和绝热的混合操作,拓宽了仪器适用范围。
100mL fixed-bed isothermal reactor was used to correct the heat dissipation in the reactor wall and the temperature rise of the thermal insulation material. The thermal compensation was used to eliminate the influence to achieve adiabatic operation and simulate the adiabatic reactor. The reactor was used to synthesize adiabatic aromatization with modified carbon tetrachloride as raw material through modified ZnNi / HZSM-5 catalyst. The effects of preheating temperature and space velocity on adiabatic temperature rise were investigated. The results show that the reactor can basically achieve the adiabatic requirement under adiabatic operation. The adiabatic temperature rise increases with the increase of preheating temperature and airspeed in aromatization, and the influence of space velocity is more significant. The calibrated reactors allow isothermal, adiabatic and isothermal adiabatic mixing operations, respectively, to broaden the scope of the instrument.