共查询到20条相似文献,搜索用时 140 毫秒
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川化集团公司自20世纪80年代以来,相继建成投产的三套三聚氰胺装置分别采用了荷兰DSM低压法、意大利欧技公司高压法和北京清大华业常压法3种生产工艺,文章简述了这三套装置在生产运行中出现的问题及相关设备的技术改造情况。 相似文献
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中国石油乌鲁木齐石化分公司化工厂高压法三胺装置由于配套小尿素装置甲铵预热器爆管损坏无法开车,且装置原设计运行不平稳、检修频率高、能耗高。鉴于这些原因,三胺装置和化肥尿素装置同时改造,两套装置原料互供,实现了高压法三胺装置和二氧化碳汽提法大尿素联产,大大降低运行能耗和原料损耗。 相似文献
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中原大化三聚氰胺(以下简称三胺)高压废水装置,是用来处理两套1.2万t/a和一套3万t/a共三套高压法三胺装置产生的含有三胺、OAT(三聚氰酸-酰胺和三聚氰酸二酰胺的混合物)的工艺废水。 相似文献
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我厂硫酸生产共有三套装置,总能力为200kt/a。第一套装置为50年代初苏联设计的40kt/a硫铁矿制酸装置,于1958年投产,采用一转一吸工艺。第二套装置于1971年投产,为80kt/a的一转一吸硫铁矿制酸装置。第三套装置于1977年投产,为80kt/a的一转一吸硫磺制酸装置。硫磺制酸装置采用两级氨法回收尾气中的二氧化硫。两套矿制酸的尾气回收,原用泡沫塔加一级复喷复挡的两级氨法回收装置。由于装置本身 相似文献
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川化股份有限公司第3套三聚氰胺装置采用的是清大华业科技有限公司开发的工艺技术,该装置是清大华业公司年产6kt三胺放大到12kt的第1套装置,采用常压法三聚氰胺工艺技术,也是我公司第一套常压法三聚氰胺工艺装置。我们是第一个吃螃蟹的人,付出了较大的代价,也交了不少的学费,同时也积累了丰富的经验。 相似文献
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川化股份有限公司(简称川化)共有5套三聚氰胺(简称三胺)生产装置,包括了3种不同的生产工艺:第1套采用低压法工艺(DSM工艺);第2套采用高压法工艺(欧技工艺);第3、4、5套均采用常压法工艺(国内清大华业工艺)。3种工艺技术相比,因常压法工艺装置投资少、物耗成本较低,成为川化当前主要运行的三胺生产装置。 相似文献
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该文介绍了江苏省化工设计院设计的三种不同设计压力的多胺法(MDEA)脱碳装置;以及多胺法脱碳特点;坯介绍了该院两套年产6万t小尿素装置的设计技术. 相似文献
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青海盐湖镁业有限公司是青海盐湖工业集团有限公司的全资子公司。青海盐湖镁业有限公司PVC钾碱厂是镁业公司龙头,共三套装置,由50万吨乙炔法PVC、30万吨乙烯法PVC和30万吨钾碱装置,技术部电气组主管三套装置电力运行、维护工作,变电所大小共9个,按照高低压进行分类,共计16个,电动机数量之多,高压电动机85台、低压电动机680台。 相似文献
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异常高压气井生产动态仿真方法不仅改变了传统物理仿真成本高、过程复杂的缺点,而且具备了计算机仿真模拟的准确性。考虑异常高压气井流体高压、高温的特点,本文将异常高压气井生产压降分解为地层流动压降、井筒流动压降和嘴流流动压降三个过程,并建立了气井生产动态流动数学模型;本文利用计算机仿真技术模拟了异常高压气井地层流体流动过程、井筒流体流动过程和气嘴流体流动过程,并预测了气井生产动态流动参数,为下步异常高压气井动态配产提供了基础数据。通过实例分析,将计算机仿真预测出的异常高压气井流动参数代入优化配产模型计算出配产结果与实际配产结果十分接近,表明异常高压气井生产动态仿真对实际生产具有重要的指导意义。 相似文献
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离子膜电解装置的生产管理与优化控制 总被引:1,自引:1,他引:0
简要介绍离子膜电解装置的特点,从精制盐水、电解槽温度、电压、加酸控制、直流电耗、总管压差等方面论述了电解装置的生产管理、优化控制,提出了要对离子膜电解装置进行定期工艺普查、分析普查和设备普查,以保证电解装置安全稳定运行。 相似文献
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Diffusion bonding has been widely used within microlamination architectures for the fabrication of micro energy and chemical systems (MECS). MECS are microsystems with the ability to process bulk amounts of fluid within highly parallel microchannel arrays capable of accelerated heat and mass transfer. Thus far, diffusion bonding of microchannel arrays is commonly done in a vacuum hot press system. The use of the hot press greatly restricts the production rate due to vacuum pump-down time and heating-up and cool-down periods. Furthermore, larger substrates are gaining interest in the system design of MECS devices, and it is not apparent that uniaxial pressing within a hydraulic vacuum hot press will provide the bonding pressure uniformity necessary for large substrate bonding. This article presents a novel fabrication approach for high-volume thermal bonding of MECS devices with the use of controlled thermal expansion. A thermal bonding fixture based on the principle of differential thermal expansion was developed with a focus on controlling the bonding pressure magnitude, the pressure timing, and its sensitivity. The application of such a fixture within a conveyorized furnace system could be the key to a continuous thermal bonding approach for the mass production of MECS devices. 相似文献
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Christoph Pluess 《Chemical Engineering Communications》2013,200(9):1259-1270
Diffusion bonding has been widely used within microlamination architectures for the fabrication of micro energy and chemical systems (MECS). MECS are microsystems with the ability to process bulk amounts of fluid within highly parallel microchannel arrays capable of accelerated heat and mass transfer. Thus far, diffusion bonding of microchannel arrays is commonly done in a vacuum hot press system. The use of the hot press greatly restricts the production rate due to vacuum pump-down time and heating-up and cool-down periods. Furthermore, larger substrates are gaining interest in the system design of MECS devices, and it is not apparent that uniaxial pressing within a hydraulic vacuum hot press will provide the bonding pressure uniformity necessary for large substrate bonding. This article presents a novel fabrication approach for high-volume thermal bonding of MECS devices with the use of controlled thermal expansion. A thermal bonding fixture based on the principle of differential thermal expansion was developed with a focus on controlling the bonding pressure magnitude, the pressure timing, and its sensitivity. The application of such a fixture within a conveyorized furnace system could be the key to a continuous thermal bonding approach for the mass production of MECS devices. 相似文献
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离子膜法烧碱装置整流系统的配置 总被引:2,自引:1,他引:1
介绍了山东德州实华化工有限公司6万t/a离子膜法烧碱生产系统采用的整流装置,该装置采用"一拖一"的运行方式,由3台整流变压器和3台整流柜组成,为3台离子膜电解槽供电;并分析了配置情况。 相似文献
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Christoph Spiegel Manfred Kraut Georg Rabsch Christof Küsters Wolfgang Augustin Stephan Scholl 《化学工程与技术》2019,42(10):2067-2075
The application of highly effective microstructured devices in continuous production and industrial environments is frequently prone to fouling. A new method is presented to characterize fouling in these microstructures. Thermal fouling of aqueous solutions containing whey protein were used as a test system. Different fouling effects could be observed and distinguished. Integral fouling indicators, such as thermal fouling resistance and pressure drop, as conventional criteria for the occurrence of fouling were compared with direct local optical observation. Low thermal fouling resistances could be detected. 相似文献