FAQ's
What is the ENTECH-WtGas-RESTM Process
SYN-Gas Production:
The Advanced Conversion Technology Chamber receives the waste derived fuel (WDF) and heats it to the required temperature in an oxygen deprived environment.(sub-stoichiometric) The thermal degradation process used is low temperature gasification – as it approaches semi-pyrolysis with condensable gases and some vapours being produced, the organic material within the solid feed is converted into a volatile and energy rich gas with properties similar to that of methane, and is referred to as "SYN-gas".
Of significance to environmental management is that the gasification process produces the valuable non-fossil fuel resource of SYN-gas in an environmentally sustainable thermal process. The volatile constituents of the SYN-gas have very high energy content and as such are utilized downstream in the process for energy generation. Significantly, the SYN-gas is a relatively clean gas as heating and gasification is conducted in quintessential and low velocity conditions that minimize entrainment of pollution concerns.
In summary, the SYN-gas is a volatile and energy rich combustible gas and is used downstream in the process for high efficiency energy generation.
SYN-gas Firing and the First Air Quality Control Stage:
The SYN-gas Burner receives SYN-gas produced by the Advanced Conversion Technology (gasification) and fires it instead of fossil fuels. Due to its high-energy content it can be utilized in the same way as fossil fuels, including firing of boilers, gas engines and if refined then to fire gas turbines, fuel cells, etc. In this case the SYN-gas Burner (a technologically advanced high efficiency and low NOX gas-burner device) is used to fire the SYN-gas at temperatures of 1,200 plus degrees C.
For the 1st air quality control stage the resulting high temperature and "clean"off-gas is subsequently retained at high temperature with adequate retention in a Thermal Reactor so as to maximize destruction rate efficiency of principal organic pollutants, mainly dioxins, VOC’s, etc.
The SYN-gas Burner firing results in an untreated off-gas that is environmentally superior to firing of many conventional fuels – Diesel, fuel oil, coal and wood, even natural gas.
Energy Utilization Stage:
The SYN-gas is fired at temperatures of 1,200 plus degrees C, thus a significant heat energy source is available for utilization. An Energy Utilization Heat Exchanger or steam boiler receives the off-gas produced by firing of the SYN-gas and utilizes the heat energy for steam generation which is subsequently utilized downstream for alternatives of process needs, steam turbine electrical power generation, etc.
The environmental analysis for the firing of SYN-gas and subsequent steam generation is environmentally superior to most any other form of its use.
Second Air Quality Control Stage:
The above-mentioned firing of SYN-gas produces an untreated off-gas that is environmentally superior to firing of conventional fossil fuels; however, so as to comply with stringent regulatory environmental regulations and provide minimal environmental impact a 2nd Air Quality Control Stage/System is provided to minimize solid and gaseous emissions.