Physical Modeling of Heat and Mass Transfer in Laboratory Coking 1. Furnace Design: A Review

IF 0.4 Q4 ENGINEERING, CHEMICAL
D. I. Alekseev, S. A. Krylova
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引用次数: 0

Abstract

The basic components of a furnace for laboratory coking are considered. The problems encountered in organizing laboratory coking are discussed. Among the features of coking, particular attention is paid to the poor thermal conductivity of the coal charge, which sets limits on the design. Photographs of coke samples obtained in two different furnaces are presented: one furnace has bottom heat supply, while the other has bilateral heat supply. The structure of the coke samples is considered. The coke produced with bottom heat supply has characteristics such as cauliflowers, tar lines, particles of finger and palm type, and also longitudinal and transverse cracks. Such elements are also seen in industrial coke. The coke produced with bilateral heat supply takes the shape of the coking chamber. It consists of many structural elements with sharp corners. The geometry of the coke cake may reflect the specifics of the heat and mass transfer. Accordingly, in designing the furnace for laboratory coking, it is important to produce coke whose geometry resembles that of industrial coke.

Abstract Image

Abstract Image

实验室炼焦中传热和传质的物理模型 1.熔炉设计:综述
考虑了实验室炼焦炉的基本组成部分。讨论了在组织实验室炼焦时遇到的问题。在焦化的特点中,特别注意到煤料的导热性较差,这对设计提出了限制。本文展示了在两个不同炉子中获得的焦炭样品照片:一个炉子采用底部供热,另一个炉子采用双边供热。对焦炭样品的结构进行了研究。底部供热的焦炭具有菜花状、焦油线、指状和掌状颗粒以及纵向和横向裂纹等特征。这些元素在工业焦炭中也能看到。采用双边供热方式生产的焦炭具有焦化室的形状。它由许多带有尖角的结构元件组成。焦饼的几何形状可反映传热和传质的具体情况。因此,在设计用于实验室炼焦的炉子时,必须生产出几何形状与工业焦炭相似的焦炭。
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来源期刊
Coke and Chemistry
Coke and Chemistry ENGINEERING, CHEMICAL-
CiteScore
0.70
自引率
50.00%
发文量
36
期刊介绍: The journal publishes scientific developments and applications in the field of coal beneficiation and preparation for coking, coking processes, design of coking ovens and equipment, by-product recovery, automation of technological processes, ecology and economics. It also presents indispensable information on the scientific events devoted to thermal rectification, use of smokeless coal as an energy source, and manufacture of different liquid and solid chemical products.
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