scholarly journals THE PREPARATION OF WATER-OLIVE EMULSIONS FROM WASTE AND BY-PRODUCTS OF COKECHEMICAL PRODUCTION OF PJSC "YUZHKOKS" FOR ADJUNCTION TO COAL BLEND

2020 ◽  
Vol 1 ◽  
pp. 9-18
Author(s):  
A.L. Borisenko ◽  
M.I. Bliznyukova ◽  
V.A. Panasenko
Keyword(s):  
Coal Tar ◽  
Coke Oven ◽  
Physicochemical Characteristics ◽  
Coke Production ◽  
Necessary Condition ◽  
Coke Oven Gas ◽  
Alkaline Water ◽  
Coal Blend ◽  
Neutralizing Agent ◽  
By Products

The existing experience and results of previous studies for the production of emulsions from resinous waste and by-products of coke production has been analyzed. A necessary condition for the creation of stable emulsion is the presence in its composition of three main components: diluent oil, emulsifiers and a neutralizing agent. In order to determine the suitability of waste and by-products of production of PJSC "YUZHKOKS" as components of water-oil emulsions, the physicochemical characteristics of acid tar of ammonia capture, neutralized acid tar of rectification of crude benzene, resins and oils of biochemical plant, non-boiling residues of monoethanolamine desulfurization of coke oven gas, alkaline water, storage waste and coal tar has been studied. The ability of these materials to mix with each other has been also studied. As a result of research, it has been found that the presents of coal tar in the composition of the diluent oil leads to the formation of more stable over time emulsions with low viscosity. The amount of coal tar in diluent oils should be 50-70 %. Non-boiling residues of monoethanolamine purification of coke oven gas from hydrogen sulfide proved to be a better neutralizing agent than alkaline water, in particular, for the reason that in some cases their use allowed to obtain homogeneous mixtures without delamination and separation of the aqueous layer by mixing emulsion components. It has been shown that when emulsions preparing it is important to follow the order of mixing the components. Based on the obtained data, formulations have been developed and the conditions for obtaining stable emulsions has been determined. Recommendations for obtaining emulsions for the purpose of their qualified use by feeding to the coal blend and improving the operation of the existing plant for waste and by-products utilization at the enterprise has been formulated.

scholarly journals MEASUREMENT OF THE CONTENT OF MONOETHANOLAMINE DURING THE CONTROL OF THE TECHNOLOGICAL PROCESS OF DESULFURIZATION AND IN THE ENVIRONMENTAL OBJECTS

2021 ◽  
Vol 1 ◽  
pp. 28-36
Author(s):  
A.Yu. Martynova ◽  
A.I. Larina ◽  
V.A. Saraeva
Keyword(s):  
Sodium Hydroxide Solution ◽  
Coke Oven ◽  
Coke Production ◽  
Sulfur Compounds ◽  
Raw Material ◽  
Test Substance ◽  
Material Base ◽  
Chemical Production ◽  
Coke Oven Gas ◽  
Environmental Objects

The problem of cleaning coke oven gas from sulfur compounds, despite their recent decrease in the raw material base of coking, remains relevant in connection with the requirements to reduce sulfur dioxide emissions into the atmosphere. When using monoethanolamine for the purification of coke oven gas from sulfur compounds, production workers are faced with the problems of determining the exact concentration both in solutions and in coke oven gas and in environmental objects. The article provides an overview of the currently existing methods for the quantitative determination of the content of monoethanolamine in liquid and gaseous media. The results of studies of the possibility of their use in the conditions of by-product coke production are presented, directions of improvement of the known methods are determined in order to eliminate the influence of accompanying components inherent in by-product coke production (in particular, ammonia, amines, phenols, etc.), which distort the analysis results. The authors describe the methods of increasing the selectivity of analytical methods for determining the content of monoethanolamine in: – coke oven gas - based on the absorption of the test substance from coke oven gas by a solution of orthoboric acid, followed by its determination in a solution with pnitrophenyldiazonium; – the air of the working area under the conditions of by-product coke production - it was proposed to eliminate the negative effect of hydrogen sulfide and phenol using an absorber containing a sodium hydroxide solution located in front of the absorber with a hydrochloric acid solution for monoethanolamine (a revised measurement procedure with additions set out in accordance with the requirements of the current legislation in the field of metrology and established metrological characteristics, agreed by the Chief Sanitary Doctor of Ukraine). The directions of research necessary for the development of a method for determining the content of monoethanolamine in process waters of coke-chemical production are outlined. Keywords: desulfurization, monoethanolamine, content determination, selectivity, ammonia, p-nitrophenyldiazonium, coke oven gas, complex compound, color intensity, photometry, measurements. Corresponding author A.Yu. Martynova, e-mail: [email protected]

Aeroderivative Power Generation With Coke Oven Gas

2012 ◽  
Author(s):  
James Dicampli ◽  
Luis Madrigal ◽  
Patrick Pastecki ◽  
Joe Schornick
Keyword(s):  
Power Generation ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Coal Tar ◽  
Coke Oven ◽  
Dust Particles ◽  
Operational Experience ◽  
Internal Cooling ◽  
Coke Oven Gas ◽  
Methanol Production

A major environmental concern associated with integrated steel mills is the pollution produced in the manufacture of coke, an essential intermediate product in the reduction of iron ore in a blast furnace. Coke is produced by driving off the volatile constituents of the coal—including water, coke oven gas, and coal-tar—by baking the coal in an airless furnace at temperatures as high as 2,000 degrees Celsius. This fuses together the fixed carbon and residual ash. The coke oven gas (COG) byproduct, a combustible hydrogen and hydrocarbon gas mix, may be flared, recycled to heat the coal, or cleaned to be used as a fuel source to generate energy or used to produce methanol. There are several inherent problems with COG as a fuel for power generation, notably contaminants that would not be found in pipeline natural gas or distillate fuels. Tar, a by-product of burning coal, is plentiful in COG and can be detrimental to gas turbine hot gas path components. Particulates, in the form of dust particles, are another nuisance contaminant that can shorten the life of the gas turbine’s hot section via erosion and plugging of internal cooling holes. China, the world’s largest steel producing country, has approximately 1,000 coke plants producing 200MT/year of COG. GE Energy has entered into the low British thermal unit (BTU) gases segment in China with an order from Henan Liyuan Coking Co., Ltd. The gas turbines will burn 100% coke oven gas, which will help the Liyuan Coking Plant reduce emissions and convert low BTU gas to power efficiently. This paper will detail the technical challenges and solutions for utilization of COG in an aeroderivative gas turbine, including operational experience. Additionally, it will evaluate the economic returns of gas turbine compared to steam turbine power generation or methanol production.

scholarly journals Coal Tar Viscosity when Dissolving Coke Oven Gas Deposits

2017 ◽  
Vol 11 (1) ◽  
pp. 125-130
Author(s):  
Oleksandr Pasternak ◽  
◽  
Leonid Bannikov ◽  
Anna Smirnova ◽  
◽  
...  
Keyword(s):  
Coal Tar ◽  
Coke Oven ◽  
Coke Oven Gas

scholarly journals Contents of Ecotoxic Elements in Polish Coking Bituminous Coals and in Products of Coking

2019 ◽  
Vol 108 ◽  
pp. 02002
Author(s):  
Piotr Burmistrz ◽  
Tadeusz Dziok ◽  
Dorota Makowska ◽  
Faustyna Wierońska ◽  
Andrzej Strugała
Keyword(s):  
Negative Impact ◽  
Coal Tar ◽  
Coke Oven ◽  
Coke Coal ◽  
Hard Coal ◽  
Coke Oven Gas ◽  
Measurement Results ◽  
Similar Content ◽  
Bituminous Coals ◽  
Coking Products

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.

scholarly journals Methodical provisions on the distribution of total technological energy resources between separate types of outputs of multi-product manufacture

2020 ◽  
Vol 2020 (4) ◽  
pp. 58-62
Author(s):  
G.O. Kuts ◽  
◽  
O.I. Teslenko ◽  
Keyword(s):  
Blast Furnace ◽  
Cast Iron ◽  
Energy Consumption ◽  
Coke Oven ◽  
Coke Production ◽  
Energy Resources ◽  
Coke Oven Gas ◽  
Furnace Production ◽  
Blast Furnace Production ◽  
Product Manufacture

The question of methodical approach to the distribution of total technological energy consumption between separate kinds of outputs of multi-product manufacture is considered. Such ferrous metallurgy industries include blast furnace process, oxygen, energy, and coke production. The theoretical basis of proposed methodological provisions is Hess's law on thermochemical reactions and its consequences. For manufactures where the products correspond to the types of energy resources and have calorific value, the distribution of energy consumption is carried out according to the weighty volumes of types of products and their heat of combustion (for example, coke production). For industries that have multi-product manufacture of non-combustible products, the distribution of energy consumption between products is based on the weighty volumes of products and their heat capacity (for example, blast furnace iron production). In accordance with the proposed methodological provisions, we present calculation formulas for determining the distribution of total technological energy consumption for separate types of coke and blast furnace production. The results calculations of energy consumption are presented separately for coke, coke-oven gas, and chemical products of coke manufacture as well as for cast iron and furnace slag for blast furnace production. Calculations show a significant reduction of the energy consumption of coke, with regard for the distribution of energy consumption for individual outputs of coke production (by 27.2%) and pig iron in blast furnace production (a decrease in 31.8%.). The proposed methodological provisions for the distribution of total technological energy consumption between separate types of outputs of multi-product industries can be used in such manufactures of oil refining and chemical industry, in the processing industry, in particular, in the production of dairy products, etc. Keywords: energy consumption, multi-product manufacture, coke, coke-oven gas, cast iron, slag, heat of combustion

scholarly journals MEASUREMENT OF THE CONTENT OF MONOETHANOLAMINE DURING THE CONTROL OF THE TECHNOLOGICAL PROCESS OF DESULFURIZATION AND IN THE ENVIRONMENTAL OBJECTS

2021 ◽  
Vol 1 ◽  
pp. 28-36
Author(s):  
A.Yu. Martynova ◽  
V.A. Saraeva ◽  
A.I. Larina
Keyword(s):  
Sodium Hydroxide Solution ◽  
Coke Oven ◽  
Coke Production ◽  
Sulfur Compounds ◽  
Raw Material ◽  
Test Substance ◽  
Material Base ◽  
Chemical Production ◽  
Coke Oven Gas ◽  
Environmental Objects

The problem of cleaning coke oven gas from sulfur compounds, despite their recent decrease in the raw material base of coking, remains relevant in connection with the requirements to reduce sulfur dioxide emissions into the atmosphere. When using monoethanolamine for the purification of coke oven gas from sulfur compounds, production workers are faced with the problems of determining the exact concentration both in solutions and in coke oven gas and in environmental objects. The article provides an overview of the currently existing methods for the quantitative determination of the content of monoethanolamine in liquid and gaseous media. The results of studies of the possibility of their use in the conditions of by-product coke production are presented, directions of improvement of the known methods are determined in order to eliminate the influence of accompanying components inherent in by-product coke production (in particular, ammonia, amines, phenols, etc.), which distort the analysis results. The authors describe the methods of increasing the selectivity of analytical methods for determining the content of monoethanolamine in: – coke oven gas - based on the absorption of the test substance from coke oven gas by a solution of orthoboric acid, followed by its determination in a solution with pnitrophenyldiazonium; – the air of the working area under the conditions of by-product coke production - it was proposed to eliminate the negative effect of hydrogen sulfide and phenol using an absorber containing a sodium hydroxide solution located in front of the absorber with a hydrochloric acid solution for monoethanolamine (a revised measurement procedure with additions set out in accordance with the requirements of the current legislation in the field of metrology and established metrological characteristics, agreed by the Chief Sanitary Doctor of Ukraine). The directions of research necessary for the development of a method for determining the content of monoethanolamine in process waters of coke-chemical production are outlined. Keywords: desulfurization, monoethanolamine, content determination, selectivity, ammonia, p-nitrophenyldiazonium, coke oven gas, complex compound, color intensity, photometry, measurements. Corresponding author A.Yu. Martynova, e-mail: [email protected]

THE MAIN TRENDS IN THE DEVELOPMENT OF WORLD COKE-CHEMICAL INDUSTRY AT THE PRESENT STAGE

2017 ◽  
pp. 22-29
Author(s):  
V.I. Rudyka ◽  
V.P. Malyna ◽  
S.P. Fedak ◽  
O.A. Tsymbal
Keyword(s):  
Raw Materials ◽  
Coke Oven ◽  
World Market ◽  
Coke Production ◽  
Metallurgical Coke ◽  
Coke Oven Gas ◽  
Coke Industry ◽  
Use Of Technology ◽  
The World ◽  
Dry Quenching

Materials describing the current state of the global coke industry and the main trends of its development are represented. Data on production of major coke producers in the world are also represented. It is shown that the slowdown of technical development of coke industry requires to compensate it by creating of flexible towards to coal base technology, which would contribute to produce coke of desired quality, reduction of cost production and reduce environmental pollution. Shown special significance of use of technology of coke dry quenching in coke production and the role of SE «GIPROKOKS» in the development and improvement of this energy saving technology, its promotion on the world market. Are considered the main technological aspects of two-products technology of coke production, that provide in addition to obtaining the coke as the main product to produce coke-oven gas containing more than 60 % hydrogen and 30 % carbon monoxide. Receiving the coke oven gas of a specified composition allows to significantly expand the scope of its application. Are considered technology directed to the expanding of coal raw materials base of coking and improving the quality of metallurgical coke. Bibl. 6, Fig. 2, Tab. 2.

scholarly journals Changes in properties of tar obtained during underground coal gasification process

2021 ◽  
Author(s):  
Marian Wiatowski ◽  
Roksana Muzyka ◽  
Krzysztof Kapusta ◽  
Maciej Chrubasik
Keyword(s):  
Coal Gasification ◽  
Coal Tar ◽  
Liquid Product ◽  
Coke Oven ◽  
Underground Coal Gasification ◽  
Gasification Process ◽  
Dominant Component ◽  
Process Gas ◽  
High Volatility ◽  
Product Separator

AbstractIn this study, the composition of tars collected during a six-day underground coal gasification (UCG) test at the experimental mine ‘Barbara’ in Poland in 2013 was examined. During the test, tar samples were taken every day from the liquid product separator and analysed by the methods used for testing properties of typical coke oven (coal) tar. The obtained results were compared with each other and with the data for coal tar. As gasification progressed, a decreasing trend in the water content and an increasing trend in the ash content were observed. The tars tested were characterized by large changes in the residue after coking and content of parts insoluble in toluene and by smaller fluctuations in the content of parts insoluble in quinoline. All tested samples were characterized by very high distillation losses, while for samples starting from the third day of gasification, a clear decrease in losses was visible. A chromatographic analysis showed that there were no major differences in composition between the tested tars and that none of the tar had a dominant component such as naphthalene in coal tar. The content of polycyclic aromatic hydrocarbons (PAHs) in UCG tars is several times lower than that in coal tar. No light monoaromatic hydrocarbons (benzene, toluene, ethylbenzene and xylenes—BTEX) were found in the analysed tars, which results from the fact that these compounds, due to their high volatility, did not separate from the process gas in the liquid product separator.

An exergy study on compression ignition engine operating with biogas gas and coke oven gas

2020 ◽  
Vol 33 (2) ◽  
pp. 183
Author(s):  
Hongqing Feng ◽  
Zhirong Nan ◽  
Xinyi Wang ◽  
Weiwen Zhang
Keyword(s):  
Coke Oven ◽  
Compression Ignition ◽  
Coke Oven Gas ◽  
Compression Ignition Engine
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