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Automatic nitrogen pressure regulating control device of refining and cracking buffer tanks
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Safe and energy-saving industrial steam low-temperature waste heat recovery and comprehensive utilization device
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Steam heat-preservation heat tracing and steam fire protection comprehensive utilization system in chemical engineering device
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Efficient oil-water separation backflow tank at pressure reducing tower top
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Shaft-seal water-cooling heat dissipation protecting system of centrifugal pump
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Coal pitch delayed coking and industrial naphthalene rectification combined naphthalene extracting device
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Process for extracting naphthalene through combination of delayed coking of coal pitch and rectification of industrial naphthalene
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Process of coproduction of light fuel oil through delayed coking of refined bitumen and coal tar hydrogenation
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Coke classifying screen
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Heavy oil/conduction oil heat exchanger
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Light oil recovery device of distillation system
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