精馏塔静态仿真：Ⅰ.静动态混合数学模型的应用

本文为了克服精馏塔静态仿真不易收敛和初值难以给定等难题，巧妙地利用隐含数值积分方法的特点，将稳态与动态数学模型耦合起来，用以求解高难度的非理想精馏塔静态仿真问题。所得静动态混俣模型大大提高了精馏塔静态仿真的鲁棒性，对于高度非理想精馏塔的仿真尤为有效。通过对某丙烯腈萃取精馏塔的静态仿真，充分证明了这种混合模型化方法的可行性。     

合成基础油的性能与应用

综述了聚醚、合成烃、酯类油、磷酸酯、硅油及氟油等合成基础油的性能及其应用情况。     

国外油气化探新进展

本文概述国外油气地球化学勘查的现状。在油气化探基础理论研究方面，国外学者提出了一些新的概念和认识。Ｍ．Ｄ．Ｍａｔｔｈｅｗｓ认为烃类迁移机制可分为弥散式和会聚式２类，并着重探讨了烃类通过会聚式迁移到达近地表时，其渗逸速率、气泡效应、分散相的成分和性质等对近地表层和水柱中烃类背景水平及异常形成的影响。Ｒ．Ｔｏｍｐｋｉｎｓ提出了油气藏地层电池和氧化还原房概念。有的学者对某些具体化探方法的原理提出了新的认识，如汞烃共生说等等。在油气化探应用效果方面，国外大量实例说明，应用非常规物化探之后，预测成功率明显提高，综合油气勘查是今后油气勘探的发展方向。近年有的学者将化探的微生物法扩展到储层研究，较准确地了解地下储层的性质与动态。油气化探技术虽然取得了重要进展，但在诸如烃类迁移机制、干扰因素的影响、应用领域的扩展等等问题上还有待进一步探讨和研究。     

Process heat integration of a heavy crude hydrotreatment plant

The present paper focuses on the study of process alternatives for heat integration of a heavy crude oil hydrotreatment plant. Experimental information obtained from a pilot scale, kinetics and reactor modeling tools, and a commercial process simulator were employed to develop mass and energy balances. Four study cases, which employ a combination of quenching and heat exchangers, were identified and evaluated. The results indicated that the case with two quenches with hydrogen and three heat exchangers is the best process heat integration (PHI) option from an energetic point of view.     

光测遥测数据联合计算速度的方法

提出了利用遥测的过载、俯仰角信息和光测的坐标联合计算弹道关机段速度的方法，从遥测结果的系统误差、随机误差和数值积分的截断误差三万面对剩余误差的影响进行了精度分析，并给出了速度精度的算法。     

Integration of solvent extraction and liquid membrane separation: An efficient tool for recovery of bio-active substances from botanicals

An integrated process based on simultaneous solid-liquid extraction and liquid membrane separation is proposed for recovery and isolation of valuable species from botanicals. This integration provides complete exhausting of the solid material even in the case of very low solubility of the specified solute in the extracting solvent. Selectivity of the liquid membrane ensures a preferential transport of the desired solute from the native extract into the strip solution, while the other co-extracted species remain predominantly in the native extract.     

Energy System Consequences When Installing an Advanced Delignification Process

In the pulp and paper industry, during major modernization projects the overall energy system consequences are often not estimated in detail, usually only local energy consequences are taken into account when evaluating possible projects. In this paper, the effects on the overall energy system when installing an advanced delignification process (i.e., a “state‐of‐the‐art” pulp digester and oxygen delignification process) will be presented. Also, the effect such an installation has on the potential for further energy integration is discussed. Furthermore, the CO₂ consequences for both installing such a system and integrating the mill further energy‐wise are presented.     

消失模铸造模成型机的特点及应用

介绍了消失模铸造工艺对成型机的特殊要求,高性能成型机在大规模工业化消失模生产中的重要性,重点阐述了德国Teubert公司TVY130/90消失模成型机的特点及应用,并对成型机的国产化研究与开发提出了建议。     

层次分析法在工程评标中的应用

根据评标工作多层次多准则的特点,将层次分析方法引入工程评标中,并结合工程实例介绍了方法的具体运用。实践表明,层次分析法思路清晰,方法简便,能减少主观因素的影响,评价结果准确,是一种实用的工程评标方法。     

户式太阳能空调应用方式分析

太阳能是绿色能源，户式太阳能空调应用的途径分为供热与制冷两部分，本文从技术经济性，如何计算太阳能设备间的匹配等几个方面进行了探讨。