7.It is strictly forbidden to directly add substances of unknown nature or violent reactions to oil and gas storage tanks or pipelines connected to the storage tanks.

This article specifies the safety management requirements for the use of various additives and auxiliaries in the process of oil and gas processing and blending. Before adding and using, understand the physical and chemical properties of additives and auxiliaries, conduct risk assessment, formulate corresponding control measures and emergency plans, use special dosing systems during the operation, and strictly follow the operating procedures.

Typical accident case: 

On July 16, 2010, the oil pipeline of Dalian Petro China International Storage and Transportation Co., Ltd. exploded and caught fire. The main cause of the accident was that the crude oil tanker had stopped unloading operations. The oxidant crude oil desulfurizer reacts violently in the oil pipeline, causing an explosion and causing a fire.