Since the commissioning of the Cangzhou Refining & Chemicals gas reduction and energy-saving project, a total of 5,834 tons of liquefied gas have been recovered
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To date, since its commissioning, the gas reduction and energy-saving project at Cangzhou Refining & Chemical has recovered a total of 5,834 tons of liquefied gas, resulting in a reduction of 15,457 tons of carbon dioxide emissions. The company analyzed the physical properties and flow rates of the gases generated by various production units, identified appropriate ways to dispose of these gases, and implemented gas reduction projects following a three-stage optimization approach of \"source control, process recovery, and system balance\". Focusing on the key issues associated with such devices, the company selected appropriate technologies to identify the main areas that needed modification. A new process was added to transport gas containing liquefied gas components to an absorption and stabilization unit, thereby enabling the recovery of components with three carbon atoms or more. High-power screw gas compressors were installed to increase the volume of gas fed into the absorption tower. Lithium bromide refrigeration units were also added to enhance the tower’s ability to absorb heavier components from the gas. Through the implementation of the above optimization measures, Cangzhou Refining & Chemicals achieved its goal of reducing gas emissions.
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