IMPACT OF START-UP OF EBULLATED-BED RESIDUE HYDROCRACKING UNIT ON HEAVY OIL--TO-HYDROGEN UNIT OPERATION
After the putting into production of ebullated-bed residue hydrocracking(H-oil)unit,the raw materials of solvent deasphalting unit were changed from residue oil and vacuum distillate unit washing oil to H-oil unit unconverted oil,and the properties of deoiled asphalt,which is used as raw material of heavy oil hydrogen production unit,were changed.The properties of feedstock oil,main operating parameters,technical and economic indicators and operation cycle of gasifier were compared.The results showed that after H-oil unit was putted into operation,the distribution of oil and gas in the gasifier of the heavy oil hydrogen production unit using DOA as raw material was more uniform,the effective gas content of the gasification unit was increased by 2.12 units,the effective gas yield was increased by 0.20 percent,the carbon conversion ratio was increased by 0.18 percent,the hydrogen yield was increased by 1.21 persent,the energy consumption per ton hydrogen was reduced by 140 kg,the technical and economic indicators of the device were greatly improved,and the operation length of the gasifier burner was significantly extended.
ebullated-bed residue hydrocrackingheavy oil to hydrogensolvent deasphaltinggasifierhydrogencarbon conversion ratio
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