Hydrogenation purifying combined process for Fischer-Tropsch synthetic substance

Abstract

A kind of combined technology method to hydrogenate and improve quality of the product from Fishcher-Tropsch synthesis process, condensate and synthetic wax can be gained by natural isolation of the product from Fishcher-Tropsch synthesis process, and the condensate will contact with hydrogen and hydrofining catalyst, then the tail oil produced by the isolation of the hydrofining reactant liquor will contact with the synthetic wax, hydrogen, and hydrocracking and isocracking catalyst, the middle oil fraction product can be gained after the isolation of the hydrocracking reactant liquor at last. The yield of the diesel oil is more than 80% by the method, the cetane number will be more than 80, and sulfur, nitrogen and aromatic hydrocarbon can barely found in the product.

Description

technical field

[0001] This invention pertains to a process for treating hydrocarbon oils using multiple hydrotreating processes, more particularly to a process for treating Fischer-Tropsch compounds using a hydrotreating process and a cracking process in the presence of hydrogen. technical background

[0002] At present, the main source of fuel used by various means of transportation in the world is petroleum, and various derivatives of petroleum provide a strong driving force for economic and social development. However, petroleum, as a non-renewable energy source, is facing the crisis of depletion day by day, and the quality of crude oil is getting worse and worse, and the content of non-ideal components such as polycyclic aromatic hydrocarbons, sulfur, nitrogen, etc. Before becoming a fuel commodity, it needs to go through an increasingly complex processing process to remove components that affect the environment, resulting in a substantial inc...

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