High quality best Coal Gasifier plant Coal Gasifier is
designed to be high production capacity, high gasification
efficiency and better adaptability to various coals, high gas
calorific value, and only need two worker to operate it, our coal
gasifier can cope with different type heating furnace, kiln, steam
boiler and ect.Our company design and manufacture environmentally
friendly coal gasifier that based on the air and steam as
gasification agent and is the advanced equipment that produce mixed
gas. The equipment is suitable for gasifying coking coal, coke and
other fuels, are widely used as furnace kiln of machinery,
metallurgy, chemical industry, glass, building materials, light
industry, food, textile industry.1.coal gasifier is the process of
producing coal gas,a type of syngas-a mixture of carbon monoxide
(CO), hydrogen (H2), carbon dioxide (CO2) and water vapour
(H2O)-from coal and water. Coal gas, which is a combustible gas,
was traditionally used as a source of energy for municipal lighting
and heat before the advent of industrial-scale production of
natural gas, while the hydrogen obtained from gasification can be
used for various purposes such as making ammonia, powering a
hydrogen economy, or upgrading fossil fuels. Alternatively, the
coal gas (also known as "town gas") can be converted into
transportation fuels such as gasoline and diesel through additional
treatment via the Fischer-Tropsch process.2.Process of the coal
gasifierDuring gasification, the coal is blown through with oxygen
and steam (water vapor) while also being heated (and in some cases
pressurized). If the coal is heated by external heat sources the
process is called "allothermal", while "autothermal" process
assumes heating of the coal via exothermal chemical reactions
occurring inside the gasifier itself. It is essential that the
oxidizer supplied is insufficient for complete oxidizing
(combustion) of the fuel. During the reactions mentioned, oxygen
and water molecules oxidize the coal and produce a gaseous mixture
of carbon dioxide (CO2), carbon monoxide (CO), water vapour (H2O),
and molecular hydrogen (H2). (Some by-products like tar, phenols,
etc. are also possible end products, depending on the specific
gasification technology utilized.) This process has been conducted
in-situ within natural coal seams (referred to as underground coal
gasification) and in coal refineries. The desired end product is
usually syngas (i.e., a combination of H2 + CO), but the produced
coal gas may also be further refined to produce additional
quantities of H2:3C (i.e., coal) + O2 + H2O → H2 + 3COIf the
refiner wants to produce alkanes (i.e., hydrocarbons present in
natural gas, gasoline, and diesel fuel), the coal gas is collected
at this state and routed to a Fischer-Tropsch reactor. If, however,
hydrogen is the desired end-product, the coal gas (primarily the CO
product) undergoes the water gas shift reaction where more hydrogen
is produced by additional reaction with water vapor:CO + H2O → CO2
+ H2Although other technologies for coal gasification currently
exist, all employ, in general, the same chemical processes. For
low-grade coals (i.e., "brown coals") which contain significant
amounts of water, there are technologies in which no steam is
required during the reaction, with coal (carbon) and oxygen being
the only reactants. As well, some coal gasification technologies do
not require high pressures. Some utilize pulverized coal as fuel
while others work with relatively large fractions of coal.
Gasification technologies also vary in the way the blowing is
supplied.3.The features of coal gasifier:1.Small investment of the
main equipment,run fast.2.Safe and convenient using,simple
operation,can save 20% fuel than direct coal.3.Compared with the
heating furnace of direct fuel,use hot gas can save energy economy
more than 60%4.Have a significant effect of smoke prevention and
dust control,meet environmental protection requirements, is the
important equipment of hot working system.5.Gas outlet temperature
is 400-550 °C, the heat energy utilization rate is extremely
high.NameunitspecificationI.D.of chambermm15001600180020002400260030003200Chamber across-section aream21.6422.543.144.525.317.078.04Fuel layermm10001000100010001000100010001000Fire layermm100~300ash layermm100~300Applicable coalNon-caking or weak-caking anthracite, bituminous coal, coke, coal property should be coincident with the requirement of GB9143fuel sizemm13~25 25~50fuel consumptionKg/h160-350350~460500~600500~720700~1040850~12001700~20001800~2200Gasifying agentAir, streamGas outputNm3/h560~12001200~16001500~21001750~25002500~36003000~43006000~70006500~7500Rotation speedr/h3.53.53.52.2321.71.71.7Air consumption coalM3/kg2.2-2.82.2-2.82.2-2.82.2-2.82.2-2.82.2-2.82.2-2.82.2-2.8Steam consumption coalM3/kg0.3-0.50.3-0.50.3-0.50.3-0.50.3-0.50.3-0.50.3-0.50.3-0.5Steam productsKg/h250-300250-300300300450500550550Net heating valueKJ/Nm35020~5670Gas temperature°C400~550Gas pressurePa980
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