一种实用的热分解炉水汽测量系统

本文简要介绍了一种钽电解电容器生产中使用的热分解炉实用的水汽测量系统。通过测量炉内氧含量的值 ,来间接分析水汽含量 ,具有显示报警及记录功能 ,在必要时还可以通过它来实现水汽自动控制。

垃圾焚烧方法与节能

本文针对垃圾成分的分析,对焚烧炉型的选择及工艺特点进行综合论述和节能比较。

热重分析法测定聚乙烯护套料中炭黑含量的探讨

按照GB/T 2951.41的要求,采用热重分析法和管式炉热分解法,分别测试了聚乙烯炭黑色母料和高密度聚乙烯护套料中的炭黑含量。讨论了热重分析法在相同的升温速率和气体流量下,不同温度下切换氧气对炭黑含量测试结果的影响,并对比管式炉热分解法测试炭黑含量,对两种试验方法结果的准确性和重复性作了评价。结果表明:采用热重分析法,在650℃温度下切换氧气测试炭黑含量与直接燃烧法测试结果相近、相对偏差小,测试方法具有优越性,可替代直接燃烧法测试聚乙烯护套料中的炭黑含量。

Study on co-cracking performance of different hydrocarbon mixture in a steam pyrolysis furnace

Co-cracking is a process where the mixtures of different hydrocarbon feedstocks are cracked in a steam pyrolysis furnace, and widely adopted in chemical industries. In this work, the simulations of the co-cracking of ethane and propane, and LPG and naphtha mixtures have been conducted, and the software packages of COILSIM1 D and Sim CO are used to account for the cracking process in a tube reactor. The effects of the mixing ratio, coil outlet temperature, and pressure on cracking performance have been discussed in detail. The co-cracking of ethane and propane mixture leads to a lower profitability than the cracking of single ethane or single propane. For naphtha, cracking with LPG leads to a higher profitability than single cracking of naphtha, and more LPG can produce a higher profitability.

利用热重分析法测定聚乙烯护套料中炭黑含量

现阶段,电缆空间电位较以往有所提高,如果达到或超过12kV,便要用到护套料。护套料的作用是保护电缆,抵消外界因素给电缆寿命或性能造成的不利影响。本文以护套料为研究对象,围绕如何高效准确测定其炭黑含量展开讨论,首先介绍实验用的设备及原料,其次说明实验所使用的测定方法,包括热重分析、直接燃烧,最后深入分析实验所得结果,指出通过热重分析测定护套料所含炭黑量,效果十分显著,可大范围推广,供相关人员参考。