I need a process diagram for slurry bed hydroprocessing of residue oil

Slurry bed residue hydrogenation is an important process used to improve the quality of petroleum residues. Here is a simple description of the process: 1. **Material preparation**: Prepare waste oil or residual oil as the raw material; typically, these materials contain high levels of asphaltenes and metals. 2. **Heating and mixing**: First, the raw oil is heated as a pretreatment step to bring it to a temperature suitable for the reaction. The heated oil is then mixed with a catalyst (such as molybdenum, tungsten, or other base catalysts) and hydrogen to form a slurry, which is fed into the reactor. 3. **Slurry bed reaction**: Under high pressure and high temperature conditions, used oil reacts thoroughly with hydrogen in a slurry bed reactor. During this process, the macromolecular asphaltenes are cracked and hydrogenated to remove impurities such as sulfur and nitrogen, while metals are also captured by the catalyst. 4. **Separation and purification**: After the reaction is complete, the resulting mixture is cooled and its pressure is adjusted, after which it enters a separator where the oil and gas are separated. Oil products undergo further distillation and refining steps to remove residual impurities, resulting in oils that are purer and of higher quality. 5. **Catalyst recovery**: The used catalysts are removed from the system, either regenerated for reuse or disposed of as waste. This technology can significantly increase the economic value of residual oil and reduce environmental pollution. Due to the complexity of the equipment and processes involved, professional technical expertise and equipment support are usually required. In practical operation, it is also necessary to adjust the process parameters according to the specific properties of the raw materials and the requirements of the product. .