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process emissions from coal tar pitch

process emissions from coal tar pitch

Coal-Tar Pitch - an overview ScienceDirect Topics

The process in which the carbonaceous binder, usually coal tar pitch or petroleum pitch, as part of a shaped carbon mix is converted to carbon yielding a rigid carbon body by the slow application of heat. The process can take as little as 14 days in coarse-grained, electrothermic grades (low binder level) and as long as 36 days in ultra-fine ...

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BITUMENS AND BITUMEN EMISSIONS

2018-6-28  coal-tar products (IARC, 2010). Similarly, bitumen should not be confused with petroleum pitch, which is the highly aromatic residue produced by thermal cracking (i.e. extreme heat treatment) of selected petro-leum fractions. The properties and chemical composition of petroleum pitch are therefore quite different from those of refined bitumen.

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4. CHEMICAL AND PHYSICAL INFORMATION

2011-10-21  4.2.2 Coal Tar Creosote, Coal Tar, and Coal Tar Pitch These three substances are very similar mixtures obtained from the distillation of coal tars. The physical and chemical properties of each are similar, although limited data are available for coal tar, and coal tar pitch.

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Process for treating coal tar or coal tar pitch - Osaka ...

A process for treating coal tar or coal tar pitch containing primary QI components 0.3 μm or less in particle size comprising the steps of subjecting a material consisting essentially of coal tar or coal tar pitch to a primary centrifugation at a temperature of 200 to 400° C. to form primary QI component solids and a primary supernatant coal ...

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Modeling of Oxidation Process of Coal Tar Pitch in ...

2019-7-7  In this paper, a three-dimensional numerical model has been developed to study the process of oxidative weight increment of coal tar pitch in a rotating kiln. Based on the two-fluid method, the gas phase is modeled by realizable k - ε turbulent model and the solid phase is modeled by kinetic theory of granular flow. The dense gas-solid flow, heat transfer, and oxidation reaction for the bed ...

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Coal Tar and its Distillation Processes – IspatGuru

2018-12-26  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

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Coal Tar Pitch - Himadri

9 行  COAL TAR PITCH. Himadri is the largest Coal tar pitch manufacturer in India

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CARBON TECHNOLOGY: II: Binder Pitch

A petroleum pitch, specially developed for aluminum anodes was produced, at commercial scale, as a real alternative to coal tar pitch. Using a highly aromatic refinery stream and well designed process conditions, it is possible to produce the right chemical composition needed for a high quality binder material for anodes.

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Química del Nalón / Business activity / Carbochemical ...

Pitch. Pitch is the main product obtained from coal tar distillation. It is composed of high molecular weight polycyclic aromatic hydrocarbons. Industrial Química del Nalón, S.A., manufactures the most ecological pitch of the market.Its low volatile content, low ash content and

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Process for treating coal tar or coal tar pitch - Osaka ...

A process for treating coal tar or coal tar pitch containing primary QI components 0.3 μm or less in particle size comprising the steps of subjecting a material consisting essentially of coal tar or coal tar pitch to a primary centrifugation at a temperature of 200 to 400° C. to form primary QI component solids and a primary supernatant coal ...

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Known and Probable Human Carcinogens

2020-2-19  Coal tar pitches Coal tars Coke oven emissions Cyclophosphamide Cyclosporin A Diethylstilbestrol (DES) Dyes metabolized to benzidine Epstein-Barr virus (EBV) Erionite Estrogens, steroidal Ethylene oxide Formaldehyde Hepatitis B virus Hepatitis C

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Coal Tar Pitch - Himadri

COAL TAR PITCH. Himadri is the largest Coal tar pitch manufacturer in India with over 70% market share in the space. The detailed quality processes ensure that it is the preferred material for use as a binder in the manufacture of Aluminum anode and

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11.4 Calcium Carbide Manufacturing

2015-9-10  The only potential source of hydrocarbon emissions from the manufacture of calcium carbide is the coal tar pitch binder in the furnace electrode paste. Since the maximum volatiles content in the electrode paste is about 18 percent, the electrode paste represents only a small potential source of hydrocarbon emissions.

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CO2 separation by carbon molecular sieve monoliths ...

2011-5-1  The objective of the present work is to develop a simple procedure, which avoids the need of a binder, to obtain activated carbon monoliths from a waste precursor (coal tar pitch) suitable for CO 2 capture and/or separation. The main task of this process consists of

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4. CHEMICAL AND PHYSICAL INFORMATION

2011-10-21  4.2.2 Coal Tar Creosote, Coal Tar, and Coal Tar Pitch These three substances are very similar mixtures obtained from the distillation of coal tars. The physical and chemical properties of each are similar, although limited data are available for coal tar, and coal tar pitch.

Read More
Coal Tar and its Distillation Processes – IspatGuru

2018-12-26  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

Read More
US3718493A - Process for the production of carbon ...

carbon filaments are made from specially treated high temperature coal tar pitch. the pitch is filtered, heat treated and its low molecular weight components are removed by distilation. the treated pitch is spun into filaments, the filaments partially oxidized and then carbonized under carefully regulated conditions to yield filamentary carbon having a tensil strength of more than 100,000 p.s ...

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CARBON TECHNOLOGY: II: Binder Pitch

A petroleum pitch, specially developed for aluminum anodes was produced, at commercial scale, as a real alternative to coal tar pitch. Using a highly aromatic refinery stream and well designed process conditions, it is possible to produce the right chemical composition needed for a high quality binder material for anodes.

Read More
Impregnation pitch with improved filterability and process ...

Abstract: An impregnation pitch having a Kraemer-Sarnow softening point ranging from about 60° C. to 80° C., a content of quinoline-insoluble substances less than or equal to 7% by weight, and a filterability index greater than or equal to 4.5. A process for the manufacture thereof, wherein a tar or a pitch having a Kraemer-Sarnow softening ...

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11.4 Calcium Carbide Manufacturing

2015-9-10  The only potential source of hydrocarbon emissions from the manufacture of calcium carbide is the coal tar pitch binder in the furnace electrode paste. Since the maximum volatiles content in the electrode paste is about 18 percent, the electrode paste represents only a small potential source of hydrocarbon emissions.

Read More
Coal Tar Pitch – IspatGuru

2018-12-26  Coal tar pitch, derived from by-product coke ovens, is the preferred material for use as a binder in the manufacture of carbon and graphite electrodes. Coal tar pitch is a coal conversion product. Its IUPAC name is ‘Coal Tar Pitch, High temperature”. Its CAS number is 65996-32-2 and EINECS number is 266-028-2.

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4. CHEMICAL AND PHYSICAL INFORMATION

2011-10-21  4.2.2 Coal Tar Creosote, Coal Tar, and Coal Tar Pitch These three substances are very similar mixtures obtained from the distillation of coal tars. The physical and chemical properties of each are similar, although limited data are available for coal tar, and coal tar pitch.

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PRODUCTION OF FOAMS, FIBERS AND PITCHES USING A

2004-6-20  This technology is needed because of the long-term decline in production of domestic feedstocks such as petroleum pitch and coal tar pitch. Currently, carbon products represents a market of roughly 5 million tons domestically, and 19 million tons worldwide. more » Carbon products are mainly derived from feedstocks such as petroleum pitch and ...

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Known and Probable Human Carcinogens

2020-2-19  Coal tar pitches Coal tars Coke oven emissions Cyclophosphamide Cyclosporin A Diethylstilbestrol (DES) Dyes metabolized to benzidine Epstein-Barr virus (EBV) Erionite Estrogens, steroidal Ethylene oxide Formaldehyde Hepatitis B virus Hepatitis C

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EMEP/EEA air pollutant emission inventory guidebook 2019

2020-11-10  Two techniques are used in the electrolysis process of primary aluminium production. Modern aluminium plants use pre-baked anodes, while in older plants the Søderberg process is used. Søderberg anodes are made in situ from a paste of calcined petroleum coke and coal tar pitch, which is baked by the heat arising from the molten bath.

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Coke Oven Emission Cases ELG Law

Coke Oven Emission Cases. Coke oven emissions are a mixture of coal tar, coal tar pitch, volatiles, creosote, polycyclic aromatic hydrocarbons, and metals. Over 20 polycyclic aromatic hydrocarbons are found in coke oven emissions, including benzopyrene, benzanthracene, chrysene, and phenanthrene. If you work in heavy industries such as the iron ...

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Control of Pollution in the Non-ferrous Metals Industry

2017-1-16  Process Technology 2.2. Emissions Control 2.2.1. Emissions in the Air 2.2.2. Liquid Emissions 2.2.3. Solid Waste ... consisting of coal tar pitch and petroleum coke is fed to the top of a steel casing and is baked into an anode by heat from the cells and heat, generated by the ... Emissions of particulate take place at the step of bauxite ...

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Carbon Materials Chemicals - Koppers Australia

World class Coal Tar Pitch other carbon products Koppers Carbon Materials Chemicals Australia beneficially reuses coal tar from Australian steelworks to produce coal tar pitch – essential for Australian aluminium smelters. We also make carbon

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12.2 Coke Production - US EPA

2015-9-10  The recovery of coal chemicals is an economical necessity, as they equal approximately 35 percent of the value of the coal. To produce quality metallurgical coke, a high-temperature carbonization process is used. High-temperature carbonization, which takes place above 900°C (1650°F), involves chemical conversion of coal into a mostly gaseous ...

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