Henan Hongji Coal gas producer for tunnel kiln is the process of producing syngas–a mixture consisting primarily of methane (CH₄) carbon monoxide (CO), hydrogen (H₂), carbon dioxide (CO₂) and water vapor (H₂O)–from coal and water, air and/or oxygen. Historically, coal was gasified using early technology to produce coal gas (also known as "town gas"), which is a combustible gas traditionally used for municipal lighting and heating before the advent of industrial-scale production of natural gas.

A Main body

B Coal load system

C Blower system (the steam mixed with water, blow in to the coal gasifier with blower)

D Ash discharge (rotation wet type auto discharge, no pollution to the enviroment)

E Dust collect system (water seal dust collect)

F Control panel (motor control, humidity instruction, power source together controlled)

G Computer control system (optional)

H Steam system (hot steam recycle, water & steam separator, self relief device, control valves, pump etc.)

I Operation platform(steal structure, for the worker inspection the coal gasifier.)

•  Ash layer: the coal come down from the top, the gas agent go up from the bottom.
•  Oxide layer: also called burning layer, thermal chemical reaction, the O with heat in the air reaction to become CO2, release heat.
•  Reduction layer: the coal after heat and together with steam complex reaction become to CO, H2,CH4, O2,CO2,N2 etc, and release heat.(CO2+C→CO↑, H2O+C→H2↑+CO).
• Carbonization layer: under 400-500℃, the volatile and other materials come out, the coal become to coke, the coke come to the reduction layer for chemical action.
•  Dryer layer, to dry the coal gas.

 Henan Hongji Mine Machinery Co., Ltd. (hereinafter referred to Henan Hongji) is a professional mining machinery manufacture, specialized in produce and develop various kinds of city solid waste recycling equipment for over 20 years, since 2008 the International Trade Department opened, we had export 48 countries and regions, coal gasfier equipments have been exported to Malaysia, Hong Kong, Pakistan, Turkey, Azerbaijan, India and so on, with successful projects and excellent quality we have very good  reputation from our clients.