CES Thermal Conversion: INnovation based on commercially-proven scientific concepts
CES' patented technology is based on an innovative implementation of "gasification," a well-understood, and commercially-proven process. All organic material is carbon based. That is, it consists of a variety of substances atomically bonded to a "backbone" of carbon molecules. When subjected to sufficient heat these atomic-level bonds break down and the non-carbon substances are released from their carbon backbone in the form of a synthesis gas ("syngas") syngas. Importantly, Gasification is very different from "burning."
Burning: In the presence of abundant oxygen, these newly-freed substances (syngas) release substantial amounts of energy as they re-bond with oxygen atoms. In other words, they "burn."
Gasification: In the absence of abundant oxygen, heated organic materials still release syngas, but the syngas can be captured for combustion as a fuel source much like natural gas or, in some applications, treated chemically to create a storable liquid fuel.
Gasification technology has been used commercially for over a century. For example, until interstate pipelines evolved to allow long-distance transport of natural gas in the 1940s, gasification of coal was used to generate "town gas," a primary source of fuel for heating and lighting. Gasification processes continue to be used extensively in the petrochemical industry where they are used to manufacture petroleum-based derivatives.
Patented CES Gasification technology
CES Technology thermally converts waste through the integration of modular subsystems. First, feedstock (MSW or other waste) is placed in the CES Gasification Module. The Gasification Module is then sealed and heated using indirect heat circulated through a forced-air system utilizing specially-designed electric heating elements. This process is carefully monitored and control by the proprietary CES Automated Control Interface (ACI). When the feedstock temperature reaches about 800° F robust gasification begins. As oxygen in the chamber is restricted, when syngas is released it cannot combust and the operating temperature of the Gasification Module remains between 800 and 1600° F.
The syngas from the Gasification Module is drawn into a physically separate Emission Control Module, where it is combined with oxygen and combusted at temperatures up to 2200° F, generating substantial heat and eliminating volatile contaminants. Converting feedstock to syngas allows for thorough oxidation and destruction of contaminants. Oxidization of the syngas efficiently releases the latent energy contained in all organic compounds, converting it into heat. Depending on design criteria, heat from the Emission Control Module can be radiated away, used to produce hot water for heating, or converted to steam to operate a turbine and generate electricity. No water is used in the CES gasification process and no waste water is produced.
robust & intuitive field Operation process
In designing its system, CES studied the deficiencies of other waste conversion systems which tended to be complex and faced difficulties in maintaining operational reliability and limiting particulate emissions. CES focused on simplifying the conversion process as much as possible, eliminating moving parts subject to wear and breakage, minimizing the physical disturbance of the feedstock in processing (a primary cause of particulate emissions), and maximizing volume reduction and extraction of thermal energy from the fuel source. In addition, CES' proprietary Automated Control Interface (ACI) provides the operator with real-time access to all operating parameters, intuitive system control, and is embedded with automated control technology which minimizes the need for operator oversight. The result is a unique system that integrates proven thermochemical and thermodynamic processes using proprietary algorithms for system control. CES' innovative integration of heating, airflow, emission control and software technologies and focused system engineering have resulted in mobile systems that can be set up, operated and prepared for transport by a single operator.
The CES Thermal Conversion Cycle
Using CES Technology, feedstock is processed in batches. Each batch will process in 4 to 8 hours depending on several factors including the density, moisture and energy content of the feedstock. No pre-processing is required.