Coke Inhibition During Naphtha Pyrolysis

investigation of coke deposition and coke inhibition by organosul-fur compounds in the pyrolysis of naphtha in the get stirred reactor system

Estimation of Kinetic Parameters of Coking Reaction Rate in Pyrolysis of Naphtha

The run length of cracking furnaces is limited by the formation of coke on the internal skin of the reactor tubes. The reaction mechanism of thermal cracking of hydrocarbons is generally accepted as free-radical chain reactions. On the basis of the plant output data and the insight in the mechanisms for coke formation in pyrolysis reactors, a kinetic model describing the coke formation has been...

Thermal and hydraulic effects of coke deposit in hydrocarbon pyrolysis process

Catalytic conversion of lignin pyrolysis model compound- guaiacol and its kinetic model including coke formation

Lignin is the most difficult to be converted and most easy coking component in biomass catalytic pyrolysis to high-value liquid fuels and chemicals. Catalytic conversion of guaiacol as a lignin model compound was conducted in a fixed-bed reactor over ZSM-5 to investigate its conversion and coking behaviors. The effects of temperature, weight hourly space velocity (WHSV) and partial pressure on ...

Fate of Micropollutants During Pyrolysis of Biosolids

FATE OF MICROPOLLUTANTS DURING PYROLYSIS OF BIOSOLIDS Approximately 250 tons of organic micropollutants, including pharmaceuticals, antimicrobials, and hormones, are discharged to the environment during land application of wastewater biosolids. Reusing wastewater biosolids is vital to the sustainability of wastewater treatment, but current treatment processes do not remove micropollutants from ...

Study on the NO removal efficiency of the lignite pyrolysis coke catalyst by selective catalytic oxidation method

Selective catalytic oxidation (SCO) method is commonly used in wet denitration technology; NO after the catalytic oxidation can be removed with SO2 together by wet method. Among the SCO denitration catalysts, pyrolysis coke is favored by the advantages of low cost and high catalytic activity. In this paper, SCO method combined with pyrolysis coke catalyst was used to remove NO from flue gas. Th...