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Newcastle Upon Tyne & Gateshea
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Newcastle Upon Tyne & Gateshea
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Publication date
Application filed by Newcastle Upon Tyne & GatesheafiledCriticalNewcastle Upon Tyne & Gateshea
Application grantedgrantedCritical
Publication of FR551171ApublicationCriticalpatent/FR551171A/en
Improvements to the process for the distillation of oily shales, coal and other carbonaceous substances and to the apparatus used for this distillation
Improvement in hydrogenation processes for gasification products of heavy hydrocarbons, tars, crude oils or other starting materials in the presence of catalysts