Quality parameters for measuring the production stability of refining units
Thread Content
Due to the large fluctuations in the properties of the crude oil supplied by local refineries, the quality of the products produced by various manufacturing units also fluctuates. However, some important parameters of the main products are controllable by the unit itself; please discuss the quality parameters used to measure the production stability of oil refining units. Let me try to explain first: Atmospheric and vacuum distillation units – 95% cut of the distillate; Delayed coking – 95% cut of the coked product; Diesel hydrogenation – sulfur content in diesel; Reforming units – octane number of reformed gasoline; Catalytic cracking – final boiling point of stabilized gasoline; Gasoline hydrogenation – sulfur content in hydrogenated gasoline; MTBE production from gases – purity of propylene; Catalytic diesel upgrading – sulfur content in diesel. Those who have different opinions, please share them{:3_53:}
The product quality control of intermediate materials can only be managed as a factor that influences the quality of downstream products. For example, the density of asphalt and catalytically processed diesel directly affects the density of hydrogenated diesel; when it is necessary to adjust the density of hydrogenated diesel, the density of the raw diesel can be adjusted to achieve the desired result.
The point is that the density of hydrogenated diesel is indeed determined by the properties of the upstream raw materials, but the sulfur content of hydrogenated diesel can be controlled by this facility. I just want to find the key quality points that are controllable within each set of devices.