Abstract: Treatment and disposal of wastewater from gas drilling by admixing with concrete produces a commercial product with a large market and involves no energy or generation of waste materials. The invention has unique cost saving opportunities to gas drilling operations but also to the concrete industry. Methods of treatment and wastewater disposal are claimed along with particular concrete products made using such wastewater additives.

Abstract: This invention is directed to a process for converting coal into useful liquids, solids, and gases, by combined processes of coal carbonization and liquefaction in which the carbonization reaction yields hydrogen suitable for the liquefaction. The heavy liquid products from the liquefaction and the carbonization may be combined with the solid char to form a metallurgical coke. Other liquids may be treated and converted into useful industrial hydrocarbon chemicals. The gases from the combined reactions yield a fuel gas as well as a hydrogen stream suitable for use in the overall processing.

Abstract: A method of and apparatus for increasing yields of certain recoverable gases, particularly ethylene feedstocks, produced during the manufacture of coke from a raw material in a coking apparatus is disclosed.The method includes the steps of heating the raw material to its coking temperature to cause evolvement of the recoverable gases in an effluent zone in the coking apparatus above the raw material; and simultaneously introducing a cooling fluid into the effluent zone to maintain the temperature of the recoverable gases in the effluent zone below their decomposition temperature, thereby increasing the yield of certain recoverable gases from the coking apparatus while maintaining maximum coke-producing rates in the coking apparatus.