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2. 发明授权

US5162050A Low-rank coal oil agglomeration product and process 失效
标题翻译：低级煤油聚集产物及工艺
公开(公告)号：US5162050A
公开(公告)日：1992-11-10
申请号：US729461
申请日：1991-07-12
申请人： Curtis L. Knudson , Ronald C. Timpe , Todd A. Potas , Raymond A. DeWall , Mark A. Musich
发明人： Curtis L. Knudson , Ronald C. Timpe , Todd A. Potas , Raymond A. DeWall , Mark A. Musich
IPC分类号： C10L5/06
CPC分类号： C10L5/06
摘要： A selectively-sized, raw, low-rank coal is processed to produce a low ash and relative water-free agglomerate with an enhanced heating value and a hardness sufficient to produce a non-decrepitating, shippable fuel. The low-rank coal is treated, under high shear conditions, in the first stage to cause ash reduction and subsequent surface modification which is necessary to facilitate agglomerate formation. In the second stage the treated low-rank coal is contacted with bridging and binding oils under low shear conditions to produce agglomerates of selected size. The bridging and binding oils may be coal or petroleum derived. The process incorporates a thermal deoiling step whereby the bridging oil may be completely or partially recovered from the agglomerate; whereas, partial recovery of the bridging oil functions to leave as an agglomerate binder, the heavy constituents of the bridging oil. The recovered oil is suitable for recycling to the agglomeration step or can serve as a value-added product.
摘要翻译：加工选择性尺寸的原料，低等级的煤以产生低灰分和相对无水的附聚物，其具有增强的热值和足以产生非破裂的可运输燃料的硬度。在高剪切条件下，低级煤在第一阶段被处理以引起灰分减少和随后的表面改性，这是促进附聚物形成所必需的。在第二阶段中，经处理的低等级煤在低剪切条件下与桥接和结合油接触以产生选定尺寸的附聚物。桥接和结合油可以是煤或石油衍生的。该方法包括热脱油步骤，由此桥联油可以从附聚物完全或部分回收; 而桥连油的部分回收功能是作为附聚物粘合剂而留下的桥连油的重质成分。回收的油适用于再循环到附聚步骤或可用作增值产品。

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