国内外异丁烷脱氢制异丁烯工艺的技术进展

综述了国内外异丁烷脱氢制备异丁烯工艺的研究进展,包括FBD-4工艺、Oleflex工艺、Catofin工艺、Star工艺、Linde工艺和ADHO工艺等,提出了未来发展的建议。     

联醇工艺中脱硫工艺技术的发展

论述和对比了联醇工艺中原料气脱硫所采用的栲胶脱硫工艺、ADA脱硫工艺、PDS脱硫工艺、氧化锌脱硫工艺、氧化铁脱硫工艺、活性炭脱硫工艺、铁钼加氢转化法脱硫工艺、有机硫水解脱硫工艺的技术原理和工艺特点;提出了将湿法脱硫与干法脱硫工艺进行合理组合,并结合有机硫水解装置的脱硫工艺选择理念;总结了“3次脱硫2次转化”脱硫工艺在联醇生产中的重要作用.     

氯苯污水处理工艺经济分析

介绍了安徽八一化工股份有限公司氯化苯生产中污水处理的三种工艺方法：红泥工艺、铁泥工艺及现有的工艺。从经济角度对三种污水处理工艺进行了分析对比,并针对现有工艺中存在的问题提出了新工艺。     

太阳能级多晶硅生产工艺研究现状

介绍了改良西门子工艺、强化FBR联合碳化物工艺、混合工艺、新硅烷工艺和卤化硅的热分解或歧化工艺，并分析了每种工艺的流程及特点。     

煤热解技术研究与开发进展

介绍了国内外3种类型的煤热解技术,其中:气体热载体工艺包括美国的COED工艺、LFC工艺、日本的粉煤快速热解工艺、ECOPRO工艺、我国的MRF工艺和内构件移动床热解工艺等;固体热载体工艺包括美国的Toscoal工艺、德国的LR工艺、前苏联的ETCH-175工艺和大连理工大学开发的DG工艺等;无热载体工艺即神雾科技集团股份有限公司开发的无热载体蓄热式旋转床热解工艺。主要从工艺流程、技术特点、工业化应用等方面,对这些工艺进行了分析,并指出了煤热解技术的发展趋势。     

丙烷催化脱氢制丙烯工艺及催化剂的研究进展

综述了目前世界上丙烷催化脱氢制丙烯的工艺及其迚展,主要包括Oleflex工艺、Catofin工艺、STAR工艺、PDH工艺和FBD工艺。对比了这五种常用工艺方法的基本特点,描述了国内丙烷脱氢制丙烯项目的开工及产能情况,介绍了各种工艺的基本情况,幵对相兲的催化剂迚行了简述。在此基础上,对丙烷催化脱氢制丙烯工艺和相兲催化剂迚行了展望。     

二甲基二氯硅烷水解工艺研究进展

综述了二甲基二氯硅烷水解工艺的研究进展,包括恒沸酸水解工艺、饱和酸水解工艺和浓酸水解工艺.着重介绍了各种水解工艺在氯化氢回收利用上的改进,通过对各水解工艺优缺点的探讨,展望了二甲基二氯硅烷水解工艺的发展方向.     

N—苯基—2,6—二氯苯胺的合成工艺研究

本文介绍了合成Ｎ－苯基－２,６－二氯苯胺的三条工艺路线,对各条工艺路线的优缺点进行比较,从而确定了最佳合成工艺路线并对该工艺路线进行了合成工艺研究,提出了最佳工艺条件,为工业化生产提供了指导依据。     

两种液氯汽化工艺的介绍与比较

介绍了液氯热水汽化工艺及蒸气汽化工艺,从工艺复杂性、经济性、可操作性及安全性等方面对两种汽化工艺进行了分析比较,得出了蒸气汽化工艺优于热水汽化工艺的结论。     

乙炔法生产氯乙烯工业研究进展

综述了氯乙烯合成工艺的最新研究进展,讨论了不同工艺以及催化剂的优缺点。将无汞工艺与目前国内比较成熟的含汞工艺进行了比较,指出了无汞工艺法是国内未来氯乙烯合成工艺的发展趋势。     

组合式旋流干燥与旋风干燥工艺技术对比

分别从工艺技术方案、设备投资与能耗、生产过程控制及产品质量4个方面对目前世界上最先进的两种聚氯乙烯干燥技术进行对比,组合式旋流干燥在工艺技术方案上具有更大的合理性及优越性,设备投资少,能耗低,操作弹性大,对离心机下料含水及蒸流压力范围要求较宽。     

Opportunities and challenges for process control in process intensification

This is a review and position article discussing the role and prospective for process control in process intensification. Firstly, the article outlines the classical role of control in process systems, presenting an overview of control systems’ development, from basic PID control to the advanced model based hierarchical structures. Further on, the paper reviews the research articles discussing control issues of intensified process equipment, specifically of reactive distillation, divided wall distillation, simulated moving bed reactors and micro-scale systems. In the next section, the focus is on more fundamental, dynamic characteristics of selected intensified process categories, which are elucidated in several examples. The goal of this analysis is to stress to the potential challenges for control of intensified processes. More importantly, the aim of this part is to emphasize to the opportunities for control, which are associated with new actuation possibilities arising from process intensification. Finally, a new concept of process synthesis is elaborated, which is based on process intensification and actuation improvement. The concept enables integration of process operation, design and control through dynamic optimization. This simultaneous synthesis approach should provide optimal operation and more efficient control of complex intensified systems. It may also suggest innovative process solutions which are more economically and environmentally efficient and agile.     

Sustainable process design by the process to planet framework

Sustainable process design (SPD) problems combine a process design problem with life cycle assessment (LCA) to optimize process economics and life cycle environmental impacts. While SPD makes use of recent advances in process systems engineering and optimization, its use of LCA has stagnated. Currently, only process LCA is utilized in SPD, resulting in designs based on incomplete and potentially inaccurate life cycle information. To address these shortcomings, the multiscale process to planet (P2P) modeling framework is applied to formulate and solve the SPD problem. The P2P framework offers a more comprehensive analysis boundary than conventional SPD and greater modeling detail than advanced LCA methodologies. Benefits of applying this framework to SPD are demonstrated with an ethanol process design case study. Results show that current methods shift emissions outside the analysis boundary, while applying the P2P modeling framework results in environmentally superior process designs. Future extensions of the P2P framework are discussed. © 2015 American Institute of Chemical Engineers AIChE J, 61: 3320–3331, 2015     

换热式转化工艺

介绍了国外的KRES、LCA、CAR、TANDEN等换热式转化工艺和国内的换热式转化工艺,以及各种转化工艺的特点和转化炉结构。     

丙交酯的提纯技术

对丙交酯提纯技术,包括萃取,精馏,熔融,结晶技术作了介绍,分析了不同工艺的优缺点,并从工程设计的角度进行总结,指出熔融结晶技术能耗低,操作灵活,绿色环保,是一个相对比较适合的分离提纯技术。     

可持续发展时代的过程集成

介绍了可持续性和过程系统工程的发展和定义,讨论了过程集成在可持续发展时代的企业内部和企业间的发展和应用。企业内的过程集成主要介绍了其集成方法以及多方面的应用实例,并提出了深度过程集成的概念;企业间的过程集成目前主要应用在多联产系统和生态工业园区。本文对一些典型的集成方法也简要进行了综述。     

蒸馏过程强化技术研究进展

蒸馏过程强化技术作为我国现代化学工业发展的重要研究领域,是过程强化概念在化学工业成功应用的典范之一。随着近些年的发展,蒸馏过程强化技术的研究已形成了一套较完整的体系,但也出现了一系列新的难题与挑战。为此,本文针对混合物相对挥发度与气液传质两个蒸馏过程强化的基础理论本质问题,以基础理论创新、关键技术突破和关键装备研究进展为主线,从强化原理、研究进展、工业应用及发展3方面系统介绍共沸蒸馏、萃取蒸馏、反应蒸馏这3类典型的引入质量分离剂强化的蒸馏过程及其耦合技术;微波、超重力场等典型外场作用下的引入能量分离剂强化的蒸馏过程,并系统介绍以新型塔内件及新型塔结构为切入点的基于先进设备强化的蒸馏过程,为迎接这一领域新的难题和挑战提供新思路。     

基于层次分析法优化天然气净化工艺

为了避免杂质腐蚀设备或因低温冻结而堵塞换热器,天然气在进入液化装置前需对其进行净化处理,即脱除天然气中的酸性气体(CO₂、H₂S)和水分。本文选用二乙醇胺(DEA)法脱除天然气中的酸性气体,用三甘醇(TEG)法脱除天然气中的水分,通过耦合DEA法和TEG法得到最终天然气净化工艺,且达到净化指标要求。但由于工程手册只能给出工艺参数的大概范围,尚无法得到最优的工艺方案,因此本文首先应用化工模拟软件HYSYS8.4对天然气工艺过程进行模拟计算,然后在工艺参数推荐范围内设定9组推荐方案,引入系统评价方法中的层次分析法,并基于Matlab程序计算,对9组推荐方案进行多目标综合评价,最终确定最优的净化组合方案。本文可为天然气净化工艺和其他工艺方案的优选提供指导。     

三氯氢硅制备工艺介绍

从工艺流程、工艺特点、核心设备结构等方面介绍了国内两种生产多晶硅所需的三氯氢硅制备工艺:改良西门子法和氯氢化法。前者以硅粉和氯化氢为原料制备三氯氢硅,其原料来源广、价格低廉;而后者以难处理的四氯化硅与氢气、硅粉、氯化氢为原料制备三氯氢硅,解决了四氯化硅的出路,提高了物料的利用率。两者均能降低能耗,减少污染,对社会、经济、环境具有重要意义。     

Multi-dimensional design process management by extended product modeling for concurrent process engineering

Conventional product and process models have focused on static features. That means product models are mainly based on structural decomposition of products, and process models are also often described by activity decomposition such as work breakdown structure. From the view of design process management, it is difficult to describe dynamic features of design processes appropriately through conventional methodologies. In this paper, a multidimensional approach for design process management was explored to manifest characteristics of design processes for chemical plant design. Parallelized design process for concurrent process engineering should be managed by twodimensional design activity flows. The process management makes it possible to guide progress of design processes in a helix structure by horizontal and vertical activity control simultaneously. They stand for teleological and causal relation between design activities, respectively. That can be achieved based on an extended product model, which represents various design perspectives explicitly from a conventional design activity model. The extended product model is composed of product data, design activities, and activity drivers. Dynamic features of the extended product model are expressed by an activity chain model. These concepts will support the realization of concurrent process engineering for chemical plant design in the sense that they provide design process management strategies.