Open AccessOn the problem of obtaining extra hydrogen-containing synthesis gases during gasification of high-ash coal using iron-containing slags
Author(s) -
Arystan Dikhanbaev,
Bayandy Dikhanbaev,
Sultan Ybray,
Zhaksylyk Akbota,
Olzhas Talipov,
Tanirbergenov Nariman
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2211/1/012002
Subject(s) - cinder , coal , slag (welding) , metallurgy , waste management , coal gasification , fly ash , zinc , combustion , coal combustion products , environmental science , materials science , chemistry , engineering , organic chemistry
In the dumps of power plants of the Republic of Kazakhstan, only from the combustion of Ekibastuz coal, ~ 300 million tons of ash have been accumulated, with an annual release of up to 30 million tons. Up to 200 g/t of gallium, germanium, 1 g/t of gold, 4% of zinc, 1% of lead, 0.3% of cadmium and other elements are lost with ash. The work is aimed at unit creation to obtain hydrogen-enriched water gas from ekibastuz coal with the production of Zn, Ga, Ge sublimates, copper-containing cast iron, slag wool and/or cast stone, when joint processing of iron-zinc-contained slag and ash-cinder wastes of thermal power plants.