关键参数交互作用对煤基泡沫炭体积密度的影响

发布时间：2018-10-14 13:09

【摘要】：为了研究工艺参数交互作用对煤基泡沫炭体积密度的影响,以肥煤镜质组富集物为前驱体,采用高压渗氮法制备煤基泡沫炭。利用Design Expert V8.0.6软件对泡沫炭制备试验进行方案设计,据此研究捣固压力、发泡温度、发泡压力和发泡时间交互作用对泡沫炭体积密度的影响规律。结果表明:体积密度与各因素间的定量数学关系模型准确可靠。模型交互作用项对泡沫炭体积密度影响由高至低的显著性排列顺序为:发泡压力×发泡时间、捣固压力×发泡时间、发泡温度×发泡时间。另外,还得出令人欣慰的发现,即制备相同体积密度的泡沫炭可以有多种工艺参数组合,以最优实验方案中发泡温度和发泡压力较低的工艺组合制备泡沫炭,可以降低制备泡沫炭时的能耗及对设备抗压性的要求。
[Abstract]:In order to study the effect of interaction of process parameters on the bulk density of coal-based foamed carbon, coal-based foamed carbon was prepared by high-pressure nitriding with vitrinite enriched in fat coal as precursor. Design Expert V8.0.6 software was used to design the scheme of carbon foam preparation test. Based on this, the influence of tamping pressure, foaming temperature, foaming pressure and foaming time on the volume density of foamed carbon was studied. The results show that the quantitative mathematical model between volume density and various factors is accurate and reliable. The order of influence of model interaction on the volume density of carbon foams from high to low is as follows: foaming pressure 脳 foaming time, tamping pressure 脳 foaming time, foaming temperature 脳 foaming time. In addition, it is gratifying to find that the foamed carbon with the same volume density can be prepared by a combination of various process parameters, and the foaming temperature and pressure are lower in the optimal experimental scheme. It can reduce the energy consumption and the requirement of equipment pressure resistance in the preparation of foamed carbon.
【作者单位】：辽宁科技大学化工学院辽宁省先进煤焦化及煤资源高效利用工程研究中心;
【基金】：辽宁省教育厅基金(L2013124) 辽宁科技大学成果转化项目(601009816-30)
【分类号】：TQ127.11

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