Russian Coke Research Articles

TECHNOLOGY OF RELATED COKING OF HEAVY OIL RESIDUE WITH THE INVOLVEMENT OF THE BOTTLE REST IN THE PROCESS

The need to increase the depth of processing of oil and hydrocarbon-containing raw materials entails the need for qualified processing of residual products in order to use them more efficiently. This paper shows the role of a delayed coking unit in the processing of heavy oil residues and the deepening of oil refining, as well as the state of the global and Russian coke production market. An analysis of various heavy coking gas oils was carried out according to their initial physicochemical characteristics and type of origin. Material balances of coking in a laboratory installation of various heavy coking gas oils and their influence on the material balance of the installation as a whole were compiled. A number of promising areas of research for further improvement of the process are identified. The data obtained can be used when designing new capacities during the construction of delayed coking units at oil refineries to improve the physical and chemical characteristics of intermediate products and increase the yield of light oil products.

Coking coals for metallurgy ‒ trends and prospects up to 2050

In 2022, the development of the global energy sector, including the coking coal market, has undergone significant transformations. Russia ranks only fourth in this market, exporting just over 32.7 million tons of coking coal. Russia has huge reserves of coking coals, many of their deposits can be developed and some of which have already started production. The article analyzes the coking coal market: production, consumption, import and export of coking coal in the main countries of the world and Russia in the period 2000‒2022. The crisis situation in 2022 in metallurgy and coking coal consumption is mainly caused not only by the sanctions policy and the decline in coking coal prices, but also by the decarbonization of the metallurgical industry, which has already actively started, and which in the future will lead to a complete refusal to use coal in metallurgy. The forecasts of coking coal consumption in the main countries of the world and Russia in the period up to 2050 depending on the rates of decarbonization of the world economy and metallurgical industry, taking into account the sanctions restrictions and embargoes on Russian coal have been developed. It is shown that coking coal producers in Russia are likely to face a drop in demand in the domestic market, and it is unlikely that they will be able to switch to the external market, as the demand there will also decrease. In order to prevent an unstable socio-economic situation as a result of a decrease in production volumes and, consequently, the income of enterprises, it is advisable for Russian coking coal producers to begin first about finding coking coal consumers, and in the future ‒ about diversification of production

Fifth Russian Coking Conference: A Report

Fifth Russian Coking Conference: A Report

Modification of Refractory Components in Russian Coke-Oven Linings

To date, Giprokoks designs have been used for all Russian coke batteries. The condition of these coke batteries has been deteriorating from year to year. The mean life of Russian coke batteries is 32 years, with values of 35 years for OAO EVRAZ ZSMK, 40 years for OAO MMK, 33 years for OAO Altai Koks, and 30 years for PAO Severstal’. The condition of the coke ovens determines the stability of steel output. The Russian coke industry faces the challenge of renewing (modernizing) its worn-out coke batteries. Changes are proposed here in some refractory components used in coke-battery linings. These proposals may be of interest to coke-battery designers and to contractors preparing for the reconstruction (or construction) of coke batteries.

Optimal oven heating of coke cake: A review

The optimization of heating by recirculation of the combustion products is considered. Arguments supporting the adoption of this approach in the heating channels of Russian coke batteries are presented. Methods of ensuring uniform heating of the coke cake over its height in non-Russian coke batteries are also described. Recirculation of the combustion products does not ensure the required heating of the coke cake over its height in Russian coke batteries. Accordingly, lengthening of the combustion flame in the heating channels is required.

Plastometric method in the identification of coal from new and old deposits

The plastometric method provides useful information regarding the suitability of Russian coking coal for the production of metallurgical coke. The discrepancies between test results in different laboratories are explained. The case is made for trainings in plastometry at laboratories of coke plants and their suppliers.

Assessing the petroleum coke used in aluminum production

The quality of Russian and imported petroleum coke used in aluminum production is considered. The properties of Russian coke vary with the degree of roasting and the microimpurity content.

Russian coking coal in 2008 and 2009

Coal resources and coke production in the second half of 2009 and the first quarter of 2010 are considered. The unsuitability of the available coal for the production of high-strength coke is analyzed.

Operation and preservation of coke ovens in the current economic crisis. 2. Technical and information services at coke plants

Papers presented at the Sixteenth Annual Seminar of Coke-Industry Specialists by enterprises maintaining Russian coke furnaces during times of economic crisis are summarized. Topics considered include the provision of refractories for the reconstruction and repair of furnace linings; new repair methods; shutdown of the coke batteries in hot and cold conservation and their subsequent return to operation; and the work of research and design organizations on prospects for coke production.

Russian coking coal in 2008 and 2009

Russian coking coal in 2008 and 2009

Minimizing the consequences of the current decline in Russian coke output

The optimal drop in Russia’s coke output is considered, so as to minimize the unavoidable current and future losses, including losses of capacity. The positive and negative aspects of various approaches to reducing coke output are evaluated. On that basis, the existing coke batteries are divided into age groups. For each age group, permissible methods of reducing coke production are determined by graphical analysis (as a function of the duration and depth of the drop in output).

Calculating the relative value of coal in Russian coking-coal markets

In order to improve the pricing of Russian coking coal, a method is proposed for calculating the relative technological value of purchased coking-coal batches. The basic idea is to compare the parameters of optimal coking batch and coking batch that includes the purchased coking-coal concentrate and other coals available to a particular buyer. It is shown that the relative technological value of a particular batch of coking-coal concentrate will depend on the parameters of the other coals included in the coking batch at a particular coke plant.

Russian coking coal

Russian coking coal