Equipment and process for producing crude hydrogen for hydrogenizing and refining petroleum product

Abstract

The invention discloses equipment and a process for producing crude hydrogen for hydrogenizing and refining a petroleum product, wherein the equipment comprises a control device, a methanol water storing and conveying device and at least three sets of methanol water reforming and hydrogen-producing modules; the control device is electrically connected with the methanol water storing and conveying device and each set of methanol water reforming and hydrogen-producing module, so that the working states of the methanol water storing and conveying device and various sets of methanol water reforming and hydrogen-producing modules are controlled; hydrogen produced by various sets of methanol water reforming and hydrogen-producing modules is directly conveyed to a petroleum product hydrogenizing and refining system through a conveying pipeline; and the control device properly controls the methanol water reforming and hydrogen-producing modules to operate according to the crude hydrogen requirement amount of the petroleum product hydrogenizing and refining system. The equipment disclosed by the invention is high in modularization, small in single module volume, rapid to start, good in stability and high in intelligentization, safety and reliability; a hydrogen storage tank is unnecessary; hydrogen can be produced instantly; hydrogen can be rapidly separated; and the parameters, such as the hydrogen production temperature, the gas flow and the air pressure, are controlled sensitively.

Description

technical field [0001] The invention relates to the technical fields of petroleum refining, petrochemical industry and energy, in particular to a hydrogen raw material production equipment and process for hydrofining of petroleum products. Background technique [0002] The purpose of hydrofining of petroleum products is to remove heteroatoms such as sulfur, nitrogen, oxygen and metal impurities in oil products, and to hydrogenate some aromatics or olefins to improve the performance of oil products. Hydrofining of petroleum products can be used for the refining of gasoline, kerosene, diesel oil, lubricating oil, paraffin oil, various middle distillates, heavy oil and residual oil. In addition, hydrogen can also be used for partial hydrogenation saturation of aromatics in jet fuel, hydrodesulfurization of fuel oil, heavy metal removal of residual oil and deasphalting pretreatment, etc. The hydrofining process of various oil products is basically the same. After the raw oil is...

AI Technical Summary

Problems solved by technology

However, in the existing hydrofining process of petroleum products, the methanol-water reforming hydrogen production technology adopts a single reformer, which is poor in intelligence, cannot be modularized, large in size, slow in start-up, serious waste of methanol raw materials, and low in safety. The whole process requires a hydrogen storage tank, and it is difficult to guarantee the stability of hydrofining of petroleum products

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