ON THE OPTIIMAL REACTIONS ASSEMBLAGE OF COMPLEX REACTION SYSTEMS

In this paper, the author analyzes distinguishing features of complex reaction systems and single reversible reaction, and optimizes complex reaction systems starting from set theory.The method of constructing the optimal reactions assemblage and calculating the potential maximum equilibrium yield (PMEY) of objective products is proposed here. This paper points out clearly that the euqilibrium yield of objective products calculated by means of conventional method is the global equilibrium yield (GEY).It is not the thermodynamic constraint, and could be exceeded by observed yield of objective products; only PMEY is the thermodynamic constraint. It gives information on potential and possible optimal yield and thereby improving production. This paper also points out the way in which the real complex reaction system approached the optimal reactions assemblage. The new concept of PMEY and optimal reaction assemblage proposed by this Paper is universally applicable for the important complex reaction systems, such as the pyrolysis of alkane to produce ethylene, steam reforming of methane to produce syngas, production of formaldehyde from methanol, epoxidation of ethylene to produce ethylene oxide, hydrogenation of benzene to produce cyclohexane.     

吸附树脂对对甲苯胺的静态吸附行为及其热力学性质的研究

对比 Amberlite XAD-4与两种新型吸附树脂 NK和新 H对对甲苯胺的静态吸附行为 ,根据吸附等温线研究并讨论吸附热力学性质 .两种新型吸附树脂对对甲苯胺的吸附能力明显强于 Amberlite XAD-4 ,微孔作用机制及表面部分极性起决定作用 .吸附焓变 ΔH<0表明吸附为放热过程 ,降低温度有利于吸附 .对吸附焓变和自由能变的讨论同时表明树脂对对甲苯胺的吸附为多层物理吸附过程 .吸附熵变 ΔS表明吸附树脂表面的不均匀性和吸附质分子在树脂表面的分布及其局域运动与吸附有密切关系 .     

多变量系统最小能量终端控制

以广义逆矩阵的理论和Bellman最优性原理为基础，给出了MIMO系统的状态反馈型的闭型解，对最优终端控制问题作了进一步的详细研究，且通过具有零初始状态的线性定常系统的研究，导出了终端控制误差和控制能量与控制时间的关系。     

利用单元状态的改变模拟采场破坏规律

采用能较好反映混凝土等脆性材料破坏特征的五参数Wilianm-Warnke强度准则破坏模型，利用有限单元法单元“处死”的功能模拟回采过程和相似材料模拟试验研究，初步总结出缓倾斜厚煤层悬移支架放顶煤顶板活动及矿压显现规律，为缓倾斜厚煤层悬移支架放顶煤制定较为合理的方案、安全技术措施等提供重要的依据和指导作用。     

双势阱分子自发隧道效应的研究

用解析法对双势阱分子的自发隧道效应进行了研究,得到了粒子的自发隧道效应周期与能级裂距成反比关系,从而对隧道效应对双势阱分子激发态的稳定性贡献给予了积极的肯定.     

地下含水层热储井位置选择和布置

地下含水层热储开发技术面临一系列问题,寻找适合热储用的含水层和合理布置热储井是解决问题的第一步.综合考虑含水层的地质结构特征,适合热储的含水层应该是承压含水层,热储应该采用同层方式.单个热储井的影响半径可以通过热平衡和热扩散原理求得.合理布置热储井间的相对位置,可以有效抵消原有地下水的流动以及渗流系数不一致的影响.利用井之间的渗流耦合作用,在热储井之间布置调节井,主动控制热储水的波及范围,可以实现热储井布置的相对"紧凑".