Baosteel Metallurgy

 Anaerobic digestion of sludge refers to the digestion technology in which biodegradable organic matter in sludge is decomposed into CH4, CO2, H2O and H2S by facultative bacteria and anaerobic bacteria under anaerobic conditions. The organic matter is decomposed anaerobic, and along with the stabilization of the sludge, a large amount of biogas with high calorific value is generated as an energy source, which makes the sludge resource. It can remove 30% to 50% of the organic matter in the waste and stabilize it. It is one of the common methods for sludge reduction and stabilization. It is the most economical sludge treatment method for large sewage plants. Biochemical process of anaerobic digestion The anaerobic digestion of sludge is a complex multi-stage process. There are two-stage theories, three-stage theories and four-stage theories for the biochemical process of anaerobic digestion. The three-stage theory refers to the need to go through three stages, namely hydrolysis, acid...

(1) Ingredients Liquefied natural gas (LNG for short) is the natural gas extracted from the well that is purified and heated up through compression. Under the action of mixed refrigerants, it cools to remove heat, and removes nitrogen, carbon dioxide, solid impurities, sulfides and water, and then saves energy. The stream expands to obtain -162 °C and the volume is reduced to 1/600 in liquid form, and the main component is methane. Liquefied petroleum gas (LPG for short) is a colorless, volatile gas obtained by pressurizing, cooling and liquefying refinery gas or natural gas (including oilfield associated gas). The liquefied petroleum gas obtained from the refinery gas is mainly composed of propane, propylene, butane and butene, and also contains a small amount of pentane, pentene and trace sulfur compound impurities. (2) Environmental protection During the liquefaction process of LNG, impurities such as sulfur, carbon dioxide, and water have been removed, so the polluted gas emitted a...

 After an oil-bearing structure is found to have industrial oil and gas flow through preliminary exploration, detailed exploration should be carried out immediately and it will be gradually put into development. The so-called oilfield development is based on the detailed exploration results and necessary productive development tests, on the basis of comprehensive research, for oilfields with industrial value, in accordance with the country's requirements for crude oil production, starting from the actual situation and production laws of oilfields, formulate Reasonable development plan and construction and production of the oilfield, so that the oilfield can produce long-term production according to the predetermined production capacity and economic effect, until the end of the development process. Introduction The formal development of an oil field generally goes through three stages: 1. Preparatory stage before development, including detailed exploration and development tests; 2. ...