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近些年,有关碱金属对焦炭溶损反应的催化作用已进行了较深入细致的研究,对碱金属以外的金属对焦炭溶损反应的催化作用也引起人们的关注,并取得了一些结果,然而对锌的研究大多是停留在其对耐火材料的侵蚀和结瘤等几个方面的研究,忽视了锌对焦炭溶损反应的催化作用而造成的焦炭粉化等情况。通过气相吸附法制备吸附不同锌含量的焦炭试样,并对吸附锌的焦炭的强度进行检测,得出如下结论:锌的吸附不会对焦炭的强度造成影响;吸附不同锌量的焦样的反应性都会随着锌量的增加而有不同程度的增加,反应后强度随着锌量的增加而降低;锌对焦炭强度产生影响的原因是锌促进焦炭的溶损反应,锌并不会因为吸附到焦炭上而直接对其强度产生明显影响。
In recent years, the catalytic action of alkali metals on the loss reaction of coke has been studied in more detail and meticulous, and the catalysis of the metal other than alkali metals on the loss reaction of coke has also drawn people’s attention. Some results have been obtained, However, most of the research on zinc remains in its research on erosion and nodulation of refractory materials, ignoring the coke pulverization caused by the catalytic effect of zinc on coke loss reaction. The coke samples with different zinc contents were prepared by gas-phase adsorption method and the strength of zinc-adsorbed coke was tested. The conclusions are as follows: the adsorption of zinc does not affect the coke strength; the adsorption of coke with different amount of zinc The reactivity will increase with the increase of the amount of zinc, the strength of the reaction decreases with the increase of the amount of zinc. The reason why the effect of zinc on the coke strength is that zinc promotes the dissolution reaction of coke, Adsorbed on the coke directly on the strength of its significant impact.