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本文报道了催化剂在废轮胎裂解中作用的研究。试验在热重量天平上进行,气氛为氮气。在国内首交使用热重分析法(TG)对五种过渡族金属的氯化物和氧化物作为催化剂在废轮胎妥中的作用作了较详细的研究,发现它们可不同程度地降低裂解温度。 相似文献
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介绍了废轮胎(橡胶)热裂解回收利用所获得的政策支持。分析了废轮胎(橡胶)热裂解工艺水平的提高,如正压改微负压,采用缺氧和无氧技术等。总结了废轮胎(橡胶)在设备方面的改进与提高。 相似文献
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正授权公告号:CN 106350092B授权公告日:2018年5月11日专利权人:格林美(武汉)城市矿产循环产业园开发有限公司、河南沐桐环保产业有限公司、格林美(天津)城市矿产循环产业发展有限公司发明人:许开华、周继锋本发明公开了一种汽车废轮胎低温催化热裂解制造燃料油和炭黑的方法。该法的具体步骤如下。第1步:将废轮胎的钢丝分离出并将其破碎成废橡胶颗粒;第2步:将废橡胶颗粒和催化剂氯化 相似文献
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在废轮胎热裂解回收过程中,会产生15-20%固体废钢丝。因为废轮胎热裂解回收大都没有配备固体废钢丝深加工设备装置和工艺技术,所以目前废轮胎固体钢丝是唯一没有有效利用的产物。而轮胎胎圈钢丝切割可加工制成钢丝切丸;帘线钢丝是碳含量为0.7%的高锰高碳钢,其强度和硬度是加工铸造钢丸的极佳材料。本文通过创新性阐述废轮胎热裂解过程中钢丝深加工工艺技术,诣在为废轮胎热裂解回收行业开创一条固体废钢丝综合利用新渠道,使废轮胎热裂解在回收利用过程能够较大幅度地提高固体废钢丝的附加值。 相似文献
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扬子江 《中国轮胎资源综合利用》2022,(1)
加拿大媒体《评论报》(The Review)报道了位于加拿大霍克斯伯里(Hawkesbury)地区的艾科咯蒙多(Ecolomondo)公司的轮胎热裂解工厂建设项目的最新进展。据报道,这家热裂解工厂于2021年夏天投入运营。《评论报》说,新工厂配备了最新的技术,将是加拿大第一套废轮胎热裂解装置,能把这种废弃物的所有成分完全回收下来。该工厂生产可销售的最终产品有:油料、钢丝、纤维、回收炭黑(rCB)和合成气,并对它们进行二次加工,以提高它们的质量和品位。 相似文献
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Seungdo Kim 《Korean Journal of Chemical Engineering》1996,13(6):559-564
The functional relationships of industrially interesting variables such as pyrolysis temperature, heating rate, and sample
size with pyrolysis time were explored to provide basic information on designing energy efficient processes. Pyrolysis kinetics
of scrap tire rubbers tested in this study were investigated to formulate the functional relationships of pyrolysis temperature
and heating rate. The pyrolysis time decreases exponentially with increasing pyrolysis temperature and heating rate, indicating
high activation energies of pyrolysis reaction of the scrap tire rubbers tested in this study. The effect of heat transfer
on the pyrolysis kinetics was evaluated by seeking the functional relationship between the sample size and pyrolysis time.The
pyrolysis time increases linearly with increasing sample diameter. The slope of the straight line is proportional to the specific
heat of the sample. 相似文献
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Krzysztof Kuśmierek Andrzej Świątkowski Tomasz Kotkowski Robert Cherbański Eugeniusz Molga 《化学工程与技术》2020,43(4):770-780
The adsorption of phenol (Ph), 4-chlorophenol (4CP), and 2,4-dichlorophenol (DCP) from aqueous solutions on activated tire pyrolysis chars (ATPCs) was studied in a batch system, including both kinetics and equilibrium. Different kinetic models and adsorption isotherms were used to describe the adsorption behavior of the phenols. The kinetic study shows that the process can be described by a pseudo-second-order model. The best fitting results for the equilibrium adsorption data were obtained with the Sips isotherm. Adsorption of the selected phenols on all of the adsorbents increased in the order Ph < 4CP < DCP. The effect of ionic strength and pH on the adsorption was also studied. The results show that the ATPCs could be used as adsorbents for the removal of phenols from aqueous solutions. 相似文献
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近20年来,废弃塑料的处理和再利用等问题受到了世界各国的重视并飞速发展。主要对废弃塑料在建材、石油、化工以及其它等方面的再利用的进展作了概述,并对废弃塑料的再利用提出了建议。 相似文献
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Analytical techniques using derivative thermogravimetry (DTG) and thermogravimetry analysis (TGA) were developed to estimate
kinetic parameters for complex decomposition reactions of a heterogeneous substance like scrap tire rubbers. Two methods using
non-isothermal techniques were proposed: (1) subtraction method and (2) method utilizing peak properties in a DTG curve. The
former method is a reliable tool to determine the kinetic parameters of decomposition reaction of each compositional component,
but it may run into a difficulty provided that tire components demonstrate similar thermal stability, thus leading to a complete
superposition of peaks in a DTG curve. The subtraction method, however, can be applied after manipulating heating rate, since
overlapped peaks can be separated by increasing or decreasing heating rate. Although the peak temperature and height (rate)
in a DTG curve in the latter method were closely related to kinetic parameters of a single reaction, they can be rarely utilized
to estimate the kinetic parameters of complex reactions because of disturbance arising from peak superposition. 相似文献
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实施名牌战略、发展名牌事业对我国轮胎企业自身的发展有着重要的意义,实施名牌战略既是我国轮胎企业获得长远经济发展和较大市场份额的可靠途径,也是目前我国轮胎企业面临的十分迫切的任务。通过对我国轮胎行业现状分析,进一阐述我国轮胎企业名牌战略的实施。 相似文献