METHOD AND APPARATUS FOR PRODUCING DESULFURIZED NAPHTHA

To provide a method and an apparatus for producing desulfurized naphtha, that can suppress an increase in a pipe surface temperature of a heating furnace heating pipe in a naphtha hydrodesulfurization apparatus, allow continuation of a safe and stable operation, and can obtain the desulfurized naphtha having high quality.SOLUTION: The present invention provides a method and an apparatus for producing desulfurized naphtha. The method includes hydrodesulfurization of stock oil containing a naphtha fraction obtained from an atmospheric distillation apparatus with a naphtha hydrodesulfurization apparatus, the method including filtering at least the naphtha fraction through a filter, and setting a concentration of a fine particulate impurity in the stock oil after filtering with the filter to 0.3 mg/L or less.SELECTED DRAWING: None 【課題】ナフサ水素化脱硫装置における加熱炉加熱管のチューブ表面温度の上昇を抑制して、安全、安定運転の継続を可能とし、品質の高い脱硫ナフサが得られる、脱硫ナフサの製造方法及び製造装置を提供する。【解決手段】常圧蒸留装置から得られるナフサ留分を含む原料油をナフサ水素化脱硫装置で水素化脱硫する脱硫ナフサの製造方法であって、少なくとも該ナフサ留分をフィルターで濾過し、該フィルターで濾過した後の該原料油中の微粒きょう雑物の濃度を０．３ｍｇ／Ｌ以下とする脱硫ナフサの製造方法、及び脱硫ナフサの製造装置である。【選択図】なし