板式塔技术进展

分析了国内外研究开发的工业化推广应用较好的几种板式塔的最新进展 ;展望了板式塔今后的发展方向     

75t/h沸腾锅炉文丘里水膜除尘器的改造

应用旋流板除尘脱硫一体化技术对 75t/h沸腾锅炉的文丘里水膜除尘器进行了改造 ,并对改造后的装置进行了性能试验 ,提出了最佳运行条件 ,实现烟气达标排放。除尘率达到了 95 % ,脱硫率达到 65 .5 %。     

合成氨净化系统改造总结

针对金信化工有限公司合成氨净化系统存在的问题．采用新技术对脱碳液过滤器、净化气水冷器、变换气脱硫塔及熔硫釜等设备或工艺进行了改造，取得了满意的效果。     

Mechanism and analytical models for the gas distribution on the SiC foam monolithic tray

Silicon carbide (SiC) foam material has been applied as monolithic tray for distillation column in our previous study. A systematic understanding of the gas distribution process on the foam tray should help to the design of commercial application. In this article, local gas holdup distribution and bubble size distribution are used to measure the gas distribution. The local gas holdup is tested by the conductive probe and the number of test point is counted in different local gas holdup. The bubbles are captured by the high‐speed camera to measure the bubble size. Bubble size is calculated as ellipsoidal bubble and counted with different pore sizes. Furthermore, a three‐stage process model is put forward to explain the uneven distribution of gas phase, and verified by the experimental values. The results show that the structure and the thickness of SiC foam is the decisive factor for the gas distribution performance. © 2015 American Institute of Chemical Engineers AIChE J, 61: 4509–4516, 2015     

A study on Cationic Surfactants as Drag-Reducing Additives

In this study, we investigated the influence of the number of ethanol (EO) groups of cationic surfactants having one oleyl group on the drag-reducing effect (DR effect). Also the effect of mechanical pumping power on DR effect was experimentally investigated using two experimental setups, a circulation system (with pump) and a pressurized once-through system (without pump). The concluding remarks obtained in this study are: 1. The DR effect strongly depends on the re-formation rate of micelles disrupted mechanically. 2. When increasing the number of EO groups of the DR surfactants from 0 to 2, the available temperature range of large DR effect was shifted lower. But the DR surfactant having three EO groups (EO-3) barely exhibited the DR effect even at the low temperature. This is because the big hydrophilic head of EO groups probably delays the re-formation of micelles disrupted by pumping power. 3. The DR effect was more liable to be influenced by pumping power with a decrease in temperature. This is because it takes a long time to re-form micelles disrupted by pumping power at low temperature.     

A novel type of equipment for reactive distillation: Model development,simulation, sensitivity and error analysis

A simulation study of heterogeneously catalyzed reactive distillation experiments carried out with the D + R tray, a novel type of laboratory equipment, is presented. One advantage of the D + R tray is that reaction and distillation are alternating stage‐wise, in a well‐defined way that can be modeled straightforwardly. An equilibrium stage model is used to describe the distillation and a plug flow reactor model to describe the catalyst bed reactors. The model parameters are derived from a systematic experimental characterization of the D + R tray both as a reactor and as a distillation unit. A validated physicochemical fluid property model is used. The primary experimental data are reconciled. Results from the predictive simulations are in good agreement with the experimental results. The influence of errors in the input parameters on the simulation results is investigated by means of a sensitivity and error analysis. © 2012 American Institute of Chemical Engineers AIChE J, 59: 1533–1543, 2013     

我国IC产业发展对高纯塑料材料的需求

论述了我国信息产业发展时超净高纯包装及运输材料需求,以及国内外发展现状、开发应用前景等,我国目前需要在较高的起点上．通过引进消化吸收．集合制造业、加工工艺研究、检测技术等多方面的优势,进行工程化技术体系的研究,建立生产环境控制、应用测试与分析剥试体系等,以便形成专业化和规模化生产。     

板式塔的进展

介绍了板式塔的发展概况,着重浮阀塔板,喷射型塔板,旋流塔板,多降液塔板,复合塔板,并对近年来新开发的塔板的特点和性能进行了简要评述。     

采用高效塔盘和填料综合成组技术改造催化主分馏塔

针对催化分馏塔的工艺特点，在不改变塔体的基础上，提出了ADV高效塔盘和SP规整填料的综合成组技术，并应用该技术时塔内件进行改造，实现了催化主分馏塔的扩能及综合性能的完善。与改造前相比，改造后的催化主分馏塔处理能力增大，操作弹性提高，压降减小，分离效率提高，能耗降低；消除了操作过程中的瓶颈，保证了汽油降烯烃的要求。     

蒸馏过程进料位置优化

文章介绍了进料位置对蒸馏塔分离能力和能耗的影响,指出进料位置优化是强化分离和节省能耗的一个有效途径。并介绍了逆向蒸馏、夹点蒸馏等重要概念。对进料位置优化分别叙述了早期手算的方法和基于计算机模拟的分离因子图法、灵敏度分析法和优化器法。