The term “clean coal” means different things to different people. Those who claim that “clean coal” can help solve the global climate change crisis are referring to a process called “Carbon Capture and Storage” (CCS), also known as “geosequestration”. This refers to the capture of carbon dioxide emissions from a coal- or gas-fired power plant or other industrial source, transport via pipelines or haulage, and storage of the gas underground or in the ocean, in isolation from the atmosphere.
Clean Coal Technology
Clean coal technology is any technology that aims to reduce the environmental impact of coal energy generation, including chemically washing impurities from the coal, gasification, and carbon capture and storage. When coal is burned in power plants and factories, the smoke released into the atmosphere is harmful to the environment. Some of the techniques that would be used to accomplish this include chemically washing minerals and impurities from the coal, gasification (see also IGCC), treating the flue gases with steam to remove sulfur dioxide, carbon capture and storage technologies to capture the carbon dioxide from the flue gas and dewatering lower rank coals (brown coals) to improve the calorific value, and thus the efficiency of the conversion into electricity.
Clean Coal Products
“Clean Coal” technology is the only integrated process in existence that was developed specifically to create oil from coal, and still deliver a smokeless boiler fuel, liquid petroleum gas, and producer gas without cross contaminating the end products. The ‘Bennett Process™’, takes any type or grade of coal, including scrap coal, oil shale, tar sands, etc, and creates three basic products: char, synthetic oil, and the gasses.
Using a low temperature carbonization process, we are able to carefully control internal temperature ranges inside a roasting unit called a Coal Carbonization Module or CCM™ to vaporize the contaminate elements contained within coal. These vaporized elements are then transported to tanks using steam, whereupon they are condensed into their natural, uncontaminated forms. We are able to produce the nearly contaminate-free char, synthetic oil, and synthetic gasses that are sold to industrial markets, such as refined into Coke for steel production, used for electricity production, or refined into liquid fuels like gasoline, diesel, and Jet A. The carbon monoxide and carbon dioxide production is also converted into liquid fuel, and injected into the product stream where it is sold as a value-added product.
Those four products are interesting. The char is a clean burning smokeless boiler fuel, which can be used for electricity and heat production. The char may also be used in the production of steel and activated charcoal products including filters and carbon fiber. Char has a higher BTU range than coal, 12MBTU/lb – 14MBTU/lb, making it more valuable per ton. Utilities using char as a fuel source become carbon creditors, and could eliminate expensive flue gas scrubbing units.
The synthetic oil is contaminate-free, low temperature oil extracted from the coal that can be converted into jet fuel, gasoline, diesel, and other high value fuels. At a BTU value of 17,370BTU/lb it can also be used as a sweetener of conventional crude supplies. CoalSack’s synthetic oil has been tested by International Lubrication & Fuel Consultants Inc. and other independent labs, and is verified to contain a “much higher amount of gasoline range materials” than conventional crude oil, making it easier and less expensive to convert into fuel. The synthetic oil is easily refined into gasoline, diesel, and Jet-A.
The synthetic gasses are contaminate-free producer gases of petrochemical feedstock including H2, propane, butane, ethane and methane. Each CCM unit creates enough producer gas byproducts to fuel itself, eliminating the need for external fuel sources during operation. In addition, the gasses may also be sold to spot market.
Clean Coal Knowledge
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