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distillation coal tar pitch from coke oven gases units

Coal Tar and its Distillation Processes – IspatGuru

26/12/2018  Coal tar, also known as crude tar, is the by-product generated during the high temperature carbonizing of coking coal for the production of the metallurgical coke in the by-product coke ovens. It is a black, viscous, sometimes semi-solid, fluid of peculiar smell, which is condensed together with aqueous ‘gas

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COAL TAR PITCH, HIGH TEMPERATURE - Europa

Coal tar pitch high temperature (CTP(ht)) is the solid fraction produced during the distillation of coal tars. Coal tars are condensation products obtained during the production of coke an/or natural gas through the destructive distillation of coal, called carbonisation or coking. The composition and properties of a coal tar (and coal tar pitch derived thereof) depend mainly on the temperature ...

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Coal Tar - Bhilai Cement

Coal Tar is a by-product generated while processing coking coal into low ash metallurgical coke in a recovery-type coke oven plant, which accounts for around 3.5-4% of coke produced. Coal Tar is then dehydrated and subjected to fractional distillation to form Coal Tar Pitch, Creosote oil, Heavy Oil, Naphthalene and Anthracene.

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Pitch coke - RESORBENT

The production of coke yields large amounts of coke oven gases that are treated and used as the input for the manufacturing of a wide range of products. This is also how tars – mixtures of many thousands of hydrocarbons containing free carbon – are made. What is left after the distillation of hard coal tar is used to produce tar pitch, the input material for pitch coke (also known as ...

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Coal tar - from by-product to value product with decanter ...

This is mainly used to produce pitch, which is widely used as a binder in manufacturing graphite electrodes. Crude coal tar from the coke oven gas purification plant con-tains up to 10% ammoniacal water and 15% suspended solids. These solids must be removed to make the tar suffi-ciently homogenous to be stored and transported without the particles settling. This is an important factor

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Coke Oven - an overview ScienceDirect Topics

02/04/2012  Coal tar from the coke oven passes out the top end of the ovens through vertical standpipes, where a water spray lowers the temperature. The cooling water and coal tar are transported to a decanter for separation. The coal tar is refined by fractional distillation to obtain commercial products. Typical yields of bulk products from high temperature pyrolysis are shown in Table 3.1.

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Coke Oven - an overview ScienceDirect Topics

02/04/2012  Coal tar from the coke oven passes out the top end of the ovens through vertical standpipes, where a water spray lowers the temperature. The cooling water and coal tar are transported to a decanter for separation. The coal tar is refined by fractional distillation to obtain commercial products. Typical yields of bulk products from high temperature pyrolysis are shown in Table 3.1.

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COAL TAR PITCH, HIGH TEMPERATURE - Europa

Coal tar pitch high temperature (CTP(ht)) is the solid fraction produced during the distillation of coal tars. Coal tars are condensation products obtained during the production of coke an/or natural gas through the destructive distillation of coal, called carbonisation or coking. The composition and properties of a coal tar (and coal tar pitch derived thereof) depend mainly on the temperature ...

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Coal Tar - an overview ScienceDirect Topics

Coal-tar pitch used in this paint is defined as a product obtained from the distillation of high-temperature, crude coke oven tar, which in itself is a product obtained during the destructive distillation of coal in slot ovens operated at a temperature above 700°C. The coal-tar pitch should be composed primarily of a complex combination of three or more membered condensed ring aromatic ...

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OCCUPATIONAL EXPOSURES DURING COAL-TAR DISTILLATION

Coal-tar distillation products comprise essen - tially the distillate (primarily a complex mixture of mono- and polycyclic aromatic hydrocarbons) and the residue from the distillation (pitch) (Betts, 1997). The part of coke-oven tar that is normally distillable at atmospheric pressure boils at up to ~400 °C and contains principally aromatic

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Coal tar - from by-product to value product with decanter ...

This is mainly used to produce pitch, which is widely used as a binder in manufacturing graphite electrodes. Crude coal tar from the coke oven gas purification plant con-tains up to 10% ammoniacal water and 15% suspended solids. These solids must be removed to make the tar suffi-ciently homogenous to be stored and transported without the particles settling. This is an important factor

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Coal Tar - Bhilai Cement

Coal Tar is a by-product generated while processing coking coal into low ash metallurgical coke in a recovery-type coke oven plant, which accounts for around 3.5-4% of coke produced. Coal Tar is then dehydrated and subjected to fractional distillation to form Coal Tar Pitch, Creosote oil, Heavy Oil, Naphthalene and Anthracene.

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Fractional Distillation In The Coal Tar Industry

The field of the tar distiller is a very wide one, and although generally confined to coal tar and coke oven tar, he frequently has to deal with other forms of tar. They may be very briefly mentioned :1. Coke Oven Tar. - It was not until the discovery of Knab, Hauport and Carves in the late 'fifties that it was realised what enormous waste was going on in the making of metallurgical coke for ...

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Coal-Tar Pitch Utilization - Digital CSIC

The industrial production of CTPs consist s of the fractionated distillation of the coal tar a temperatures near to 400 °C (Figure 1). By this procedure, the coal tar yields a series of liquid fractions suitable for different industrial applications and a residue which is solid a t room temperature, called coal -tar pitch.

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distillation of coal tar apparatus « BINQ Mining

Coke, coal gas, gas carbon, coal tar, ammonia liquor, and "coal oil" The process of pyrolysis can be conducted in a distillation apparatus (retort) to form the »More detailed. Destructive Distillation of Coal coal tar. amino acid liquor. coal gas. The destructive distillation of coal can be carried out in the laboratory. The apparatus is set up as shown in the below figure . »More ...

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Coal and Coal by Products, Coal Tar, Coal

Coal tar, a byproduct of coal is a brown or black liquid of high viscosity, which smells of naphthalene and aromatic hydrocarbons. Coal tars are complex and variable mixtures of phenols, polycyclic aromatic hydrocarbons (PAHs), and heterocyclic compounds which are produced when coal is carbonized to make coke or gasified to make coal gas.

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ES- 33-2007 COAL TAR PITCH, HIGH TEMPERATURE

Coal tars are condensation products obtained during the production of coke an/or natural gas through the destructive distillation of coal, called carbonisation or coking. The composition and properties of a coal tar (and coal tar pitch derived thereof) depend mainly on the temperature of carbonisation and, to a lesser extent, on the nature of the coal used as feedstock. High-temperature coal ...

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Coal tar - from by-product to value product with decanter ...

This is mainly used to produce pitch, which is widely used as a binder in manufacturing graphite electrodes. Crude coal tar from the coke oven gas purification plant con-tains up to 10% ammoniacal water and 15% suspended solids. These solids must be removed to make the tar suffi-ciently homogenous to be stored and transported without the particles settling. This is an important factor

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CPC Definition - C10B DESTRUCTIVE DISTILLATION OF ...

In "by-product" coke ovens, the gaseous and liquid by-products obtained during the carbonisation process are recovered, the principal by-products are coal tar and coke-oven gas. The coke oven gas is used to heat the ovens by combustion is external heating flues.In "non-recovery" or "heat recovery" coke ovens, the raw gas produced in the ovens is completely combusted and used to generate power.

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DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS

Coke oven An airless oven for driving of volatile constituents from coal during carbonisation to produce coke. In "by-product" coke ovens, the gaseous and liquid by-products obtained during the carbonisation process are recovered, the principal by-products are coal tar and coke-oven gas. The coke oven gas is used to heat the ovens by

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Coal Carbonization for Coke Production – IspatGuru

08/12/2018  The by-product gas and tar vapors leaving the coke oven undergo a separation process to remove the tar from the gas. The gas then is treated to recover NH3, as ammonium sulphate, while the tar is fractionated by distillation into three oil cuts, which are designated as light, middle (or tar acid), or heavy oil. The gas, mainly a mixture of H2 and CH4, has a good calorific value and is used as ...

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Coal Tar - Coal Tar - Coal Tar Pitch Naphthalene

Coal tar can be divided into low temperature coal tar, medium temperature coal tar and high temperature coal tar according to the carbonization temperature. The coal tar obtained in coke production belongs to high temperature coal tar. It is one of the coke oven gas purification products condensed and separated in the process of crude gas cooling.

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How is Crude Coal Tar Derived 1

Crude Coal Tar is a by product of the Coking process. Coking is the process of heating coal in coke ovens to drive volatile matter from it. Metallurgical Coke is used as a fuel and reducing agent in the production of iron, steel, ferro-alloys, elemental phosphorus, calcium carbide and numerous other processes. It is also used to produce carbon electrodes and to agglomerate sinter and iron ore ...

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MESOPHASE MICROSPHERES FROM DISTILLATION AND

Coal tar is a by-product of thermal degradation of coal. The objective of the degradation process is either carbonization to obtain coke or gasification to obtain the so-called coal gas as well. Distillation of coal tar leaves behind coal tar pitch (CTP), a thick black liquid with 1 Doctorado en Ciencia y Tecnología de Materiales, Facultad de

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Coal tar - Wikipedia

Coal tar is a thick dark liquid which is a by-product of the production of coke and coal gas from coal. It has both medical and industrial uses. Medicinally it is a topical medication applied to skin to treat psoriasis and seborrheic dermatitis (dandruff). It may be used in combination with ultraviolet light therapy. Industrially it is a railway tie preservative and used in the surfacing of roads.

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About Coal Tar and Polycyclic Aromatic Hydrocarbons

Crude Coal Tar sometimes referred to as crude coke oven tar or simply coal tar is a byproduct collected during the carbonization of coal to make coke. Coke is uses as a fuel and as a reducing agent in smelting iron ore in a blast furnace to manufacture steel and in foundry operations. Crude coal tar consists of a mixture of naturally occurring compounds containing hydrogen and carbon that are ...

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