摘要
应用唯象理论, 分析了反应精馏过程中各种场(如温度场、浓度场、化学势场等)之间的协同关系,以及同一场内不同分量之间的协同关系。提出了在多场协同条件下质量通量和热量通量的唯象表达式以及相应的传质和传热系数。从而揭示了该过程中传质、传热以及化学反应之间的相互影响规律,为强化该过程提供了理论依据。
A new method to analysis the reactive distillation process was proposed. The phenomenological theory was used; both of the Soret effect and Dufour effect were considered. The synergy of fields, such as the temperature, concentration and chemical potential in the reactive distillation process was discussed and the relationship of each factor within one field was also investigated. The equations of mass and heat fluxes were suggested and the coefficients for both of them were obtained under many condition of the synergy in multi-fields. It can be known from the research results that the transfer rate of mass and heat can be increased or decreased resting with the consequence of synergy in multi-fields, the direction of transfer also can be changed by the affection of synergy of multi-fields. From the viewpoint of field synergy, these models of equilibrium stage and non-equilibrium stage for the reactive distillation process are the two kinds of typical results of the synergy within one field and inter-fields.
出处
《高校化学工程学报》
EI
CAS
CSCD
北大核心
2003年第4期389-394,共6页
Journal of Chemical Engineering of Chinese Universities
基金
国家自然科学基金(20176044)
国家重点基础研究发展规划项目(G20000263)。
关键词
唯象理论
场协同
反应精馏
传递过程
Concentration (process)
Heat flux
Heat transfer
Mass transfer
Temperature
