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DEMONSTRATION BULLETIN: TEXACO GASIFICATION PROCESS TEXACO, INC.
Rosenthal, S. DEMONSTRATION BULLETIN: TEXACO GASIFICATION PROCESS TEXACO, INC. EPA/540/MR-94/514, 1994.
The Texaco Gasification Process (TGP) has operated commercially for nearly 45 years on feeds such as natural gas, liquid petroleum fractions, coal, and petroleum coke. More than 45 plants are either operational or under development in the United States and abroad. Texaco has developed waste gasification as an innovative extension of their conventional fuels gasification technology that converts carbonaceous materials containing organics into a mixture consisting primarily of hydrogen and carbon monoxide by reacting them with a limited amount of oxygen (partial oxidation) in a refractory-lined gasifier at temperatures in excess of 2,200 F (above the melting point of the ash in the feed stream) and at pressures greater than 250 psig. According to Texaco, these temperatures and pressures are sufficient to destroy any hydrocarbons and organics in the feed and prevent the formation of undesirable hydrocarbon by-products associated with other coal/fossil fuel conversion processed. The TGP produces a raw synthesis gas (syngas) as an intermediate product which can then be used to produce hydrogen, ammonia, methanol and other chemicals, as well as electrical power when combusted directly in a gas turbine. Since the TGP is operating at temperatures aibove the melting point of the ash in the feed stream, the residual ash forms a glassy slag. Waste feed, along with coal, oil, and/or coke, is ground and mixed with water in a high solids concentration slurry (generally 55 to 70%).