ABSTRACT
Four coals of different rank were gasified, using a steam/oxygen mixture as gasifying agent, at atmospheric and elevated pressure in a fixed bed reactor fitted with a solids feeding system in continuous mode. Independently of coal rank, an increase in gasification pressure led to a decrease in H(2) + CO production and carbon conversion. Gasification of the different rank coals revealed that the higher the carbon content and reactivity, the greater the hydrogen production. Co-gasification experiments of binary (coal-biomass) and ternary blends (coal-petcoke-biomass) were conducted at high pressure to study possible synergetic effects. Interactions between the blend components were found to modify the gas production. An improvement in hydrogen production and cold gas efficiency was achieved when the coal was gasified with biomass.
Subject(s)
Biomass , Bioreactors , Biotechnology/methods , Coke , Hydrogen/metabolism , Petroleum , Pressure , Biofuels , Hot TemperatureABSTRACT
El pioderma gangrenoso es una enfermedad cutanea inflamatoria de etiologia desconocida que se caracteriza por presentar lesiones papulopustulosas dolorosas y ulceraciones extensas. Con frecuencia se asocia a enfermedades sistemicas; es de evolucion cronica, recurrente y rebelde al tratamiento. Presentamos un caso de pioderma gangrenoso asociado a artritis reumatoidea en una paciente añosa la cual es hospitalizada por la invalidez que provoco la dermatosis inflamatoria
Subject(s)
Pyoderma GangrenosumABSTRACT
El pioderma gangrenoso es una enfermedad cutanea inflamatoria de etiologia desconocida que se caracteriza por presentar lesiones papulopustulosas dolorosas y ulceraciones extensas. Con frecuencia se asocia a enfermedades sistemicas; es de evolucion cronica, recurrente y rebelde al tratamiento. Presentamos un caso de pioderma gangrenoso asociado a artritis reumatoidea en una paciente añosa la cual es hospitalizada por la invalidez que provoco la dermatosis inflamatoria(AU)
