Air-based coal gasification in a two-chamber gas reactor with circulating fluidized bed

Steam Gasification in a Fluidized Bed with Various Methods of In-Core Coal Treatment

“…In case 1, the reaction speed is also reduced due to the relatively low temperature of 700 • C. The low reaction rate leads to the dominance of reaction (12), an increase in CO 2 , and a decrease in CO. In these cases, the syngas composition obtained by the dominant reaction ( 12) is first calculated, and then the unreacted carbon reacts with CO 2 according to reaction (13). In case 3, the syngas composition obtained in the experiment and the calculation practically coincide.…”

“…A characteristic feature of steam gasification gases in FB is, as a rule, an increased content of CO 2 , reaching 28.3% for coal and 25-32% for biomass [11][12][13][14] and high hydrogen content (up to 53-66%). Such gases cannot be used for chemical production, but are suitable for hydrogen production, because they almost do not require a water gas shift reaction (WGSR), although they need deep purification due to the content of pyrolysis ballast products.…”

Obtaining synthesis-gas by the stone coal steam conversion using technology of aerosol nanocatalysis

“…In [13], a problem of chemical performance efficiency of the process is addressed. The authors argue that while conducting the air gasification of solid fuels, temperature at the output of the layer turns out to be insufficient to achieve the maximum values of chemical performance efficiency of the process of gasification process.…”

“…The change of voltage makes it possible to adjust the speed of reactor rotation and the temperature in the reactor. The furnace has a pocket for temperature measurement using a thermocouple (13). To minimize heat loss to the environment, on top of the furnace is a layer of heat insulating material (11) [17].…”

Study of the process of coal transfer by means of auger effector within the aggregate of boiling bed

“…Использование техники кипящего слоя в углеперерабатывающих установках позволяет су-щественно сократить объем затрат на их реализацию и получить компактный экономичный и экологичный агрегат для одновременного производства полукокса, горючего газа и тепла (Dai, Ma, Liu, & Liu, 2015;Zhang & Zheng, 2016;Dubinin, Tuponogov, & Kagramanov, 2017;Solimene et al, 2017).…”