Green Fire Complete Waste Management System
A Highly Efficient Two-Stage Thermal Decomposition Process For the Conversion of Multiple Waste Streams to High Value Mineral Products, Fuel-Oil, and Fuel-Gas
Many of the major global challenges facing modern society are the methods in which waste-streams are properly managed, disposed of, and/or re-mediated. The expense of executing responsible and effective models to this end has also represented a significant challenge.
While governments and global agencies recognize the magnitude of waste proliferation and the urgency of this dilemma, they continually struggle to find an effective and economically viable remedy.
Green Fire believes that the solution must resolve not only the disposal of waste with no adverse environmental impact, but also achieve this in a way that is economically viable so that the solution may be embraced around the world in all economic environments. Green Fire’s and its partners have developed a unique solution to this problem as a result of exhaustive testing — using innovative technology backed by demonstrated science and practical engineering.
Green Fire technologies and those of its partners represent a paradigm shift from the current practice of disposing of waste by burning, ignoring it, landfill and in the most egregious cases, by dumping into waterways and oceans.
In our Green Fire world, the majority of waste will be converted to reusable products through thermal decomposition in a controlled atmosphere so that no gases or fumes may escape. These technologies are powered primarily from the energy they develop in the process of producing highly valuable and readily marketable off-take intermediates and byproducts.
Some of the Conventional Methodologies Used to Handle the Waste Problem are:
Pyrolysis is heavily used in the chemical industry. For example, to produce charcoal, activated carbon, methanol and other chemicals from wood. Also, to convert ethylene dichloride into vinyl chloride to make PVC, to produce coke from coal, to convert biomass into syngas and for the cracking of medium – weight hydrocarbons from oil to produce lighter products like gasoline. If one standard and uniform feedstock is used and the system is carefully controlled, there also exist applications for standard pyrolysis. The two standards of common pyrolysis technologies are classified by the heat source itself.
Indirect Heat Pyrolysis
In the Indirect-Heat Pyrolysis method the feedstock material will not make direct contact with the heat source. The material will be loaded into a vacuum chamber isolated from air. Then, a heat source is applied to heat the chamber. The heat source can be gas, oil, electricity, plasma etc. Indirect-Heat has a low thermal conductive efficiency because there is no contact with the surface of the feedstock material. To improve the efficiency, catalyst pyrolysis has been developed. It uses a catalyst to bring the heat in contact with the feedstock material. If more catalyst is used, greater heat contact is made with the surface of the feedstock material and the efficiency is thereby increased. Another method is to cut the material into small pieces, or powder. This material is so small that it will react instantly. This technology is called “Fast Pyrolysis”. No matter how much the contact surface is increased, the heat will always be applied from the outer surface to the interior of the feedstock chamber. The problem with this system occurs when heat makes contact with the surface of the feedstock material. It forms a hard insulating barrier, preventing the heat from being transmitted to the interior of the feedstock material resulting in an incomplete de-composition of the organic compounds, and subsequently, poor quality byproducts.
Direct Heat Pyrolysis
In this method the heat makes direct contact with the feedstock material. It has the advantage of being the most efficient method of thermal conductivity. Examples of direct heat pyrolysis systems are: steam pyrolysis systems or nitrogen or argon gas pyrolysis systems. Both steam and gas have a penetration characteristic, thereby heating the interior of the feedstock material, which completely decomposes the hydrocarbons. The disadvantage of the direct heat pyrolysis method is that it requires the consumption of a large amount of energy (i.e. to generate super-heated steam consumes a large amount of energy). Also the direct heat pyrolysis systems are
more complicated than indirect heat systems.
The difference between gasification and pyrolysis is the operating temperature and the by-product, which is generated. Gasification operates at temperatures over 600°C. At this temperature, hydrocarbons will decompose to fuel gas so gasification is suitable for converting large amounts of organic waste to fuel-gas, which is then connected to a gas turbine to generate electricity.
Normally, the scale of a plant incorporating this technology will be very large and costly. The plants incorporating this technology are much more efficient than existing incinerators and coal-fired power plants, and additionally, offer a genuine alternative to incineration although they still have problems with toxic emissions and fly ash. This technology is called “Waste-To-Electricity” and although Green Fire can provide this technology, our focus is on more efficient methods of
Green Fire Thermal Decomposition
The Green Fire partner process uses a special type of thermal dynamic reaction whereby the chemical bonds in the material are broken under controlled conditions. The reaction occurs spontaneously at temperatures above 300°C for wood, but varies for other materials. Oxygen, or any other reagents are not required, but reaction can take place in their presence.
Extreme reaction, which leaves only carbon as the residue, is called “carbonization” and is also related to the chemical process of charring.
Green Fire offers a proprietary system which combines steam as well as direct and indirect heat thermal decomposition technology into one continuous system. This system further incorporates a unique two-stage carbon conditioning and gasification process. High pressures and dangerous hydrogen gas build-up are eliminated in this controlled atmosphere thermal reaction.
This system is far more efficient than conventional pyrolysis systems for waste management and the production of quality carbon black and synthetic fuel oil. This system also utilizes syngas to run the plant, which makes Green Fire systems unique.
The standard factory model, offered by Green Fire, is suitable for processing waste amounts up to 50 tons per day per reactor