催化裂解多产丙烯新技术

介绍了国内外利用蜡油或常压渣油等重质原料的增产丙烯技术CPP,ARGG FDFCC和TSRMP;还介绍了利用富含烯烃的混合碳四和催化裂化汽油等轻质原料的增产丙烯技术OCP,Propylur,Superflex,OCT,Meta-4和BASF公司的丁烯歧化工艺技术.     

芳烃抽提装置技术改造

由于中国石化锦西石化分公司600kt／a连续重整装置的建设，芳烃抽提装置的原料由原来的脱戊烷油变为Ce组分。为此，对抽余油水洗塔和芳烃分离部分的苯塔塔盘，以及苯塔塔顶和塔底抽出部分进行了改造，更换部分机泵和增加变频泵，并将常规仪表改为DCS控制。改造后装置实现一次开车成功，生产出合格产品。抽余油中总芳烃含量小于0．1％，苯回收率达到99%以上。     

原料扩重的中压加氢改质装置投产

介绍燕山石化公司为扩大1Mt／a中压加氢改质装置的原料来源，改用大庆减二线油和重油催化裂化柴油组成的混合料开工投产的经验以及装置初期的运行条件。中压加氢改质技术可以生产优质柴油和蒸汽裂解制乙烯的原料，还可增产喷气燃料。     

车用乙醇汽油调合及储运问题的探讨

简要介绍了车用乙醇汽油的组成、性质 ,阐述了车用乙醇汽油调合及储运设施的工艺设计思想 ,以及车用乙醇汽油储运设施设计中应注意的问题。     

Renewable energies and the poor: niche or nexus?

Renewable energies are considered as an essential element of any strategy for sustainable energy development. The poor in the developing world without access to modern energies are regarded as a major market for renewable energies. This short paper attempts to analyse whether such a niche is backed by any economic logic and whether renewable energy and the poor nexus could be a strategy for success. The paper suggests that contrary to the common belief, the economic logic behind the niche is unsound and that the nexus is not a recipe for success.     

焦化汽油加氢试生产重整原料的技术分析

在0.6Mt/a柴油加氢精制装置上利用焦化汽油为原料进行重整原料油的试生产，改善了焦化汽油的性质，降低了硫，氮和可导致重整催化剂中毒的金属含量及烯烃含量，提高了饱和烃的含量，生产出了合格的重整原料，该技术拓宽了重整原料来源，较好地解决了焦化汽油的出路问题。     

直馏汽油异构化装置的运行

长庆油田公司第二助剂厂新建的 70kt a直馏汽油异构化装置 ,采用二个反应器 ,以常压直馏汽油为原料 ,采用非临氢重整催化剂 ,生产的异构化汽油的研究法辛烷值约 90 ,但改质汽油收率较低 ,仅 65 %左右     

粘结剂组成对粘结剂和喂料热性能的影响

研究制备了PW，BO，OP3大系列10种组成的粘结剂及相应10种W-Ni-Fe粉末与粘结剂的混合料。并采用热失重-差热分析(TGA-DTA)分析了粘结剂和喂料的热性能。研究结果表明，粘结剂组成对粘结剂和喂料的热性能如熔点、热分解温度和热分解曲线有很大的影响。通过此变化可以更为准确地确定不同粘结剂组成的喂料中的粘结剂脱除工艺和脱除方式。     

Controlled Nucleation Method:A New Process for Semisolid Metal Forming

Semisolid metal forming requires special feedstock material with a fine-grained and globular structure to achieve thixotropic properties. A number of methods have been developed to produce such feedstock materials. Controlled Nucleation Method (CNM) is a new and simple, cost effective method that has been developed by the University of Queensland. The CNM process does not use the conventional stirring process, instead, it uses solidification conditions to control nucleation, nuclei survival and grain growth, thereby produce fine and globular structures suitable for semisolid forming. No specialised equipment is required. The method can produce both semisolid slurry for rheocasting and semisolid billet for thixocasting. It can be applied to a wide range of alloys and can easily be incorporated into existing metal forming installation. Semisolid slurries/billets of hypoeutectic and hypereutectic aluminium-silicon casting alloys, aluminium wrought alloys and a magnesium alloys have been successfully produced.     

纳米结构Al2O3+13%TiO2热喷涂喂料的研究

纳米结构的Al2O3 13％TiO2混合粉经过球磨制浆和喷雾干燥，制得了25～50μm的球形大颗粒结构，分别采用高温电炉和高速火焰两种方式，对喷雾造粒的纳米结构Al2O3 13％TiO2颗粒进行了致密化处理，制备了适合热喷涂的纳米颗粒喂料。测试了喂料形貌、晶粒尺寸及物相成分。分析结果表明，应用高温电炉烧结造粒喂料时，在选定的温度范围内(110-1300℃)，喂料的相成分没有改变，晶粒没有显著长大；采用高速火焰烧结造粒喂料，喂料经高温快速激冷，Al2O3晶粒尺寸仍在100nm以下，但因火焰温度高(2500-3200℃)，相成分分析表明，喂料中发生α-Al2O3→γ-Al2O3及金红石TiO2→板钛矿TiO2的转变。