آخرین محصولات

Coal Tar Pitch Processing: Experimental and Theoretical …

Therefore, coal tar pitch (CTP), a byproduct of the coal tar distillation process, is an abundant source for the pro-duction of syngas and carbon nanomaterial due to its …

Xylene activation of coal tar pitch binding characteristics for

DOI: 10.1016/J.FUPROC.2016.02.026 Corpus ID: 102029187; Xylene activation of coal tar pitch binding characteristics for production of metallurgical quality briquettes from coke breeze

Coal Tar Pitch Processing: Experimental and Theoretical …

Theoretical and experimental approach of fuel gas and carbon black production from coal tar pitch by thermal plasma process. ... tar pitch (CTP) processing for the production of clean fuel gas and ...

15

The carbonization of coal to produce metallurgical coke in slot-type recovery ovens is the main source of coal tar production. But tar is not a prime process target, and its composition and properties are subordinated to the primary aim of producing metallurgical coke. ... QI is the most condensed fraction of all, and in the pitch-forming ...

Characterization approach to develop distillation process for

As per customer requirement, these properties could be achieved by controlling coal tar quality, different parameters during distillation of tar and processing of soft and medium pitch. Coal tar ...

Coal Tar and Coal-Tar Pitch

It is a byproduct of the production of coke, a solid fuel that contains mostly carbon, and coal gas. Coal tar is used primarily for the production of refined chemicals and coal-tar products, such as creosote and coal-tar pitch. Certain preparations of coal tar have long been used to treat various skin conditions, such as eczema, psoriasis, and ...

The Aluminum Smelting Process and Innovative Alternative …

The industrial aluminum production process is addressed. The purpose is to give a short but comprehensive description of the electrolysis cell technology, the raw materials used, and the health and safety relevance of the process. ... In addition, the carbon anodes contain 13 to 16 wt% coal tar pitch to be used as a binder material, ...

Coal Tar Pitch Processing: Experimental and Theoretical …

largely explored to produce new carbonaceous products [26–35]. Therefore, coal tar pitch (CTP), a byproduct of the coal tar distillation process, is an abundant source for the pro-duction of syngas and carbon nanomaterial due to its polycyclic aromatic hydrocarbons (PAH) composition [37].

Utilisation of the binders prepared from coal tar pitch and …

A.Benk [4] studied the possibility of producing metallurgical quality formed coke from coke breeze and coal tar pitch and phenolic resin binder and also investigated their high temperature ...

Bio-pitch as a binder in carbon anodes for aluminum production…

The coal-tar-pitch is the most recognized binder for the anode production due to its good interaction with the coke particles at the mixing stage. ... thus providing an alternative binder for carbon anodes used in aluminium production process. The bio-pitch, produced under the recommended conditions, is intended to be used as a binder …

Process for the manufacture of coal-tar pitch

The process of manufacturing coal-tar pitch from a coal-tar obtained by distillation of coal in a fluidized bed; comprising the steps of forming a mixture at a temperature of 100 C. of equal weights of anthracene oil and said coal-tar, and distilling said mixture under a pressure of 18 mm. of mercury until the residue reaches a K. S. softening ...

Methods for the preparation of coal-tar pitch

The prospects of a low-temperature process of the thermal dissolution of coals under mild conditions for the preparation of pitch products in a yield much higher that the yield of pitch...

Preparation of formed coke product as a coke substitute …

The coke breeze used in this study was obtained from Shanxi Province, China. The corresponding sieves detected the particle size distribution of coke breeze, and the results are shown in Table 1.The ultimate and proximate analyses of coal tar pitch, coke breeze and formed coke product were analyzed by an Elementar-UNICUBE from …

(PDF) Preparation and Characterization of Coal-Pitch

High-temperature coal tar pitch is the common raw materials to produce high-quality coal-based needle coke. The basic properties (fa, β resin, quinoline insoluble) of coal tar pitch have greatly ...

Tar Pitch

Coal tar pitch (CPT), a coal pyrolysis byproduct, can be used as a precursor for direct production of graphene-like materials. Coal tar pitch is a highly aromatic material …

Coal tar pitch and molasses blended binder for production …

DOI: 10.1016/J.FUPROC.2016.11.005 Corpus ID: 99989516; Coal tar pitch and molasses blended binder for production of formed coal briquettes from high volatile coal @article{Zhong2017CoalTP, title={Coal tar pitch and molasses blended binder for production of formed coal briquettes from high volatile coal}, author={Qiang Zhong and …

Coal Tar and its Distillation Processes

The process of distillation gives a variety of valuable chemical products. The residue of distillation is coal tar pitch, which is further processed into coal tar pitch of desired chemical and physical properties. The primary objective of coal tar distillation process is to produce a number of tar acid products from the crude tar.

Upgrading carbonaceous materials: Coal, tar, pitch, and …

Coal, tar, pitch, and beyond Xining Zang,1,2 3 * Yuan Dong,4 5 Cuiying Jian,6 Nicola Ferralis, 7and Jeffrey C. Grossman SUMMARY Heavy carbonaceous materials (HCMs) such as coal are mostly used for nonrenewable power generation, while derivatives such as tar and pitch are often discarded by-products. Upgrading HCMs for a

Xylene activation of coal tar pitch binding characteristics for

Coal tar pitch with the advantages of low price, lower impurity content and the same elementary composition as coke is the most commonly used binder for the production of briquettes from coke breeze. However, coal tar pitch has little cohesiveness before being heated to melting state and the carbonization must be operated at high …

Coal Tar

High-temperature coal tar is a byproduct of coal coking process, whose production accounts for about 3% of stove to 4% of coal. Plverized coal pyrolyzes in the absence of air in coke oven, and obtains coke, coal tar, coal gas, crude ammonia, coking crude benzene, and a small amount of water. Under normal conditions, the tar will condense out.

Upgrading carbonaceous materials: Coal, tar, pitch, and …

Figure 1 illustrates examples of coal-derived materials including active carbon for water and air treatment 9 and carbon black for tires. 10 Rare earth metal materials refined from coal and carbon fibers made from coal tar pitch have high additive values that may ultimately make them attractive for commercialization. 11, 12 Another strategy to ...

Coal Tar

1.3.2.3.1 Coal tar pitch. Coal tar pitch is defined as the residue (nonvolatile at 450°C) from the distillation of coal tars produced by the high temperature pyrolysis (>1000°C) of coal. 40 The molecular structure of coal tar pitches usually consists of an aromatic core with only a few methyl groups attached. In that sense, coal tar pitch is ...

Mesophase pitch-based high performance carbon fiber production …

Mild direct coal liquefaction (autogenous pressure, no catalyst, no H 2 gas) of Springfield coal in fluid catalytic cracking decant oil is shown to effectively produce coal extract precursors to spinnable mesophase pitch. This work demonstrates that the coal extract can be thermally treated to obtain mesophase pitch in a facile one-step …

Thermal Polycondensation Process and Petroleum Pitch Production …

The article discusses the thermal polycondensation methods of petroleum pitch production. The main attention is paid to the characteristics of petroleum pitch, its properties, and its comparison with coal-tar pitch. It describes three promising petroleum pitch production technologies, namely, thermal polycondensation of cracking residue, …

Coal Tar Pitch Processing: Experimental and Theoretical

Therefore, coal tar pitch (CTP), a byproduct of the coal tar distillation process, is an abundant source for the production of syngas and carbon nanomaterial …

Investigation of resole, novalac and coal tar pitch blended …

The whole formed coke production process, involving phenolic resin's preparation, their blending, coal tar pitch preparation and blending it with the phenolic resins blend, coke breeze and/or anthracite grinding, mixing the blended binder with the coke breeze or anthracite, briquetting, curing the green briquettes and carbonizing the …

DEVELOPING COAL TAR/PETROLEUM PITCHES

These strategies have included: 1) importing coal tar, 2) importing coal tar pitch, 3) developing processes to improve pitch yield and upgrade non-conventional coal tars, …

Process for producing coal-tar pitch

In a process for producing carbon fibres from coal tar pitch, the coal tar pitch is filtered before being spun and the pitch filtrate is distilled in a thin-film evaporator in order to increase its softening point over 260 C. A pure and homogeneous hard pitch is thus obtained, without the re-formation of infusable, chinolin-insoluble components.

Xylene activation of coal tar pitch binding characteristics for

Qiang Zhong [19, 20] added coal tar pitch to industrial coal powder during coking; the drop strength and compressive strength of coke increased from 15.1 to 56.6 times/2 m and 0.45 to 13.06 MPa ...

Investigation of resole, novalac and coal tar pitch blended …

Section snippets Experimental. The whole formed coke production process, involving phenolic resin's preparation, their blending, coal tar pitch preparation and blending it with the phenolic resins blend, coke breeze and/or anthracite grinding, mixing the blended binder with the coke breeze or anthracite, briquetting, curing the green …

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