Stonega Coke & Coal Co. v. Addington. Nov. 16, 1911. Rehearing Denied Jan. 18, 1912. [73 S. E. 257.]

1912 ◽  
Vol 17 (11) ◽  
pp. 874
Keyword(s):  
2008 ◽  
Vol 38 (6) ◽  
pp. 845-851 ◽  
Author(s):  
A. Demoz ◽  
C. Khulbe ◽  
C. Fairbridge ◽  
S. Petrovic
Keyword(s):  

Metallurgist ◽  
2011 ◽  
Vol 54 (9-10) ◽  
pp. 600-607 ◽  
Author(s):  
I. A. Sultanguzin ◽  
M. V. Isaev ◽  
S. Yu. Kurzanov
Keyword(s):  

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 193
Author(s):  
Hamideh Kaffash ◽  
Gerrit Ralf Surup ◽  
Merete Tangstad

Charcoal is an interesting reducing agent because it is produced from biomass which is renewable and does not contribute to global warming, provided that there is a balance between the felling of timber and growth of trees. Biocarbon is a promising alternative to fossil reductants for reducing greenhouse gas emissions and increasing sustainability of the metallurgical industry. In comparison to conventional reductants (i.e., petroleum coke, coal and metallurgical coke), charcoal has a low density, low mechanical properties and high CO2 reactivity, which are undesirable in ferroalloy production. Densification is an efficient way to upgrade biocarbon and improve its undesirable properties. In this study, the deposition of carbon from methane on three types of charcoal has been investigated at 1100 °C. CO2 reactivity, porosity and density of untreated and densified charcoal were measured, and results were compared to metallurgical coke. Surface morphology of the charcoal samples was investigated by using scanning electron microscopy (SEM). SEM confirmed the presence of a deposited carbon layer on the charcoal. It was found that the CO2 reactivity and porosity of charcoals decreased during the densification process, approaching that of fossil fuel reductants. However, the CO2 reactivity kept higher than that of metallurgical coke.


2019 ◽  
Vol 14 (2) ◽  
pp. e2291
Author(s):  
Shuang‐Ni Wang ◽  
Jian‐Zhong Liu ◽  
Yi Wang ◽  
Ning Li ◽  
Ke‐Fa Cen

2019 ◽  
Vol 108 ◽  
pp. 02002
Author(s):  
Piotr Burmistrz ◽  
Tadeusz Dziok ◽  
Dorota Makowska ◽  
Faustyna Wierońska ◽  
Andrzej Strugała

Ecotoxic elements include the ones which have a negative impact on human health and the environment, among others, mercury, arsenic and lead. Hard coal is a fuel which contains significant amounts of ecotoxic elements and the processes of coal combustion, coking and gasification are one of the main sources of their anthropogenic emission. In the coking process, individual ecotoxic elements in various proportions remain in coke and are released to the raw coke oven gas. During the cleaning and cooling of coke gas, ecotoxic elements are distributed between purified coke gas and other coking byproducts. In the paper, the measurement results of the contents of selected ecotoxic elements in the Polish coking bituminous coals are presented, i.e. mercury, arsenic and lead. The examination results of their content in the products of the coking process i.e. coke, coal tar, BTX, sulfur, and purified coke oven gas are also shown. Coke is characterized by a much lower content of mercury and lead than coal, and by a similar content of arsenic. Among the coking products, sulfur and tar are characterized by the highest content of mercury. Coal tar also contains a high amount of lead.


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