Development of hydrogen-enriched water gas production technology by processing Ekibastuz coal with technogenic waste

• Autorzy: Dikhanbaev B. , Dikhanbaev A. B. , Sultan I. , Rusowicz A.

Identyfikatory

DOI

10.24425/123022

• Języki publikacji: EN

Abstrakty

EN

In the dumps of metallurgical enterprises of Kazakhstan about 700 million tons of waste products are generated annually, and are polluting the atmosphere and the soil. The concentration of valuable components in waste products are no lower than in natural resources. The reserves of coal in the Ekibastuz basin are estimated to be more than a billion tons, and almost half of this is made up of ash. Every year, up to 30 million tons of ash-cinder waste is generated, which presents a serious threat to nature. Gallium and germanium concentrations in dumps are approximately 200 grams per ton, which is comparable to the content in coal before processing. The current research aims at creating a unit to obtain hydrogen-enriched water gas from Ekibastuz coal, with the production of zinc, gallium and germanium sublimates, copper-containing cast iron, slag wool and cast stone, through the joint processing of zinc-rich slag and ash-cinder wastes from thermal power plants. To achieve this, we used previous methods of extreme energy saving and a new method, the smelt layer with inversion phase. Experimental results from the “reactor inversion phase – rotary kiln” (RIPh) unit, which processed zinc-germanium contained slag, showed the potential to extract germanium from zinc sublimates, to reduce iron to the form of cupreous cast iron, and to obtain combustible gases and smelt suitable for slag-wool production. Calculations performed on the joint processing of Ekibastuz coal and zinc-rich slag using the proposed unit“ reactor of inversion phase–rotary kiln–gas generator” showed it can obtain hydrogen-enriched watergas, along with the extraction of valuable components of primary raw material.

Słowa kluczowe

EN

hydrogen-enriched water gas; reactor of inversion phase–rotary kiln–gas generator; cupreous cast iron; zinc-germanium containing sublimates

PL

gaz wodny wzbogacony wodorem; reaktor fazy inwersyjnej-pieca obrotowego-generatora gazu; żeliwo miedziowe; sublimaty zawierające cynk-german

• Wydawca: Komitet Budowy Maszyn PAN
• Czasopismo: Archive of Mechanical Engineering
• Rocznik: 2018
• Tom: Vol. LXV, nr 2
• Strony: 221--231
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Dikhanbaev B.

• Energy Department, S. Seifullin Kazakh Agrotechnical University, Astana, Republic of Kasakhstan

autor

Dikhanbaev A. B.

• Energy Department, S. Seifullin Kazakh Agrotechnical University, Astana, Republic of Kasakhstan

autor

Sultan I.

• Energy Department, S. Seifullin Kazakh Agrotechnical University, Astana, Republic of Kasakhstan

autor

Rusowicz A.

• Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, Warsaw Poland

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