Influence of properties of bituminous binders on the strength of formed coke

Structural characterization of carbonized briquette obtained from anthracite powder

“…on the quality of the carbonized briquette. Sharma et al [6] investigated the effect of various coal tar-and petroleum-based binders on the strength of carbonized briquettes. The atomic C/H ratio of the binders played an important role in controlling the strength of carbonized briquettes, and binders with a C/H ratio greater than 1 were preferable.…”

Interaction between coal and distillation residues of coal tar during co-pyrolysis

“…Among these research works, most of them are concerned on not the yield and quality of pyrolysis oil/gas but the waste disposal and environmental protection. As to co-pyrolysis of coal and coal tar or distillation residue of coal tar (coal tar pitch), studies on coal tar or coal tar pitch as a kind of binder from the byproducts of coking plant aimed to improve the quality of formed or metallurgical coke were widely reported [27,[33][34][35][36][37][38]. Special attention has also been given to the physical and chemical characteristics of the binder and coal.…”

Influence of coal tar–water emulsion on carbonisation of caking coals

“…Studies into the use of these additives are mainly performed in two directions: for the production of formed coke [5][6][7] or the improvement of the plastic properties of coals in the process of carbonisation [8,9].…”

“…Researchers underline the importance of porosity of the tar added that affects the porosity of briquettes [10]; no less important is its fluidity and ability to penetrate into pores [3,7]; the interaction of complex blends of coal and pitch is also of a great significance [4]. While the content of a binder in formed coke can reach 20% [3,5] its optimal level for the strength of final briquettes is 12-15% [5,6].…”

“…However, until now there is no satisfactory explanation of a complex variation of the strength parameters of briquettes and coke or the fluidity of the plastic mass with a gradual increase of pitch additives to coal [1,5,8,25]. It was proposed to consider the addition of about 12% for briquettes [6] and 5-10% for coal blends [8,13] (more precisely 7% CTP [9,25]) to be an optimal amount.…”