首页>
外国专利>
PHYSICAL-CHEMICAL COMPOSITE INHIBITOR FOR CONTROLLING SPONTANEOUS COMBUSTION OF LOW-RANK COAL AND METHOD OF PREPARING AND USING SAME
PHYSICAL-CHEMICAL COMPOSITE INHIBITOR FOR CONTROLLING SPONTANEOUS COMBUSTION OF LOW-RANK COAL AND METHOD OF PREPARING AND USING SAME
展开▼
机译:控制低排煤自燃的理化复合抑制剂及其制备和使用方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
Disclosed is a physical-chemical composite inhibitor for controlling spontaneous combustion of low-rank coal, and methods of preparing and using the same. The composite inhibitor consists of a chelate and attapulgite, the chelate is generated by chelation of proanthocyanidin with calcium chloride. The composite inhibitor has moisture-absorbing and moisture-retaining effect, and can reduce water dissipation at low temperature. A stable oxide insulating layer such as MgO and Al2O3 insulating layer can be formed at high temperature, which can block a coal body from contacting with oxygen. In addition, the composite inhibitor can capture hydroxyl free radicals generated during the chain-cycle reaction and destroy peroxide free radicals, and can also interact with an active moiety in coal to form a stable structure such as ether linkage and hydrogen bonding, thereby achieving permanent inhibition of low-rank coal.
展开▼
机译:本发明公开了一种用于控制低阶煤的自燃的物理化学复合抑制剂及其制备和使用方法。复合抑制剂由螯合物和凹凸棒组成,该螯合物是通过原花青素与氯化钙的螯合生成的。该复合抑制剂具有吸湿保水作用,可以减少低温下的水分散失。可以在高温下形成稳定的氧化物绝缘层,例如MgO和Al 2 Sub> O 3 Sub>绝缘层,这可以阻止煤体与氧气接触。另外,该复合抑制剂可以捕获链环反应过程中产生的羟基自由基并破坏过氧化物自由基,并且还可以与煤中的活性部分相互作用形成稳定的结构,如醚键和氢键,从而实现永久性抑制低阶煤。
展开▼