APPARATUS FOR MALEIC ANHYDRIDE APPARATUS TO PRODUCE HIGH-PRESSURE OR ULTRA-HIGH-PRESSURE STEAM AS BYPRODUCT, AND APPARATUS PRODUCTION METHOD

• Main Authors: ZHU, Ruyi, CHEN, Xia, XU, Zhigang, CHEN, Hu, WU, Feike, DONG, Hongjiang, ZHANG, Wenming, ZHOU, Yifei
• Format: Patent
• Language: Chinese; English; French
• Published: 18.07.2024
• Subjects: AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHINBOILERS; BLASTING; CHEMISTRY; CONTROLLING WATER LEVEL; FEED-WATER SUPPLY; HEATING; HETEROCYCLIC COMPOUNDS; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; METHODS OF STEAM GENERATION; ORGANIC CHEMISTRY; PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER; STEAM BOILERS; STEAM GENERATION; WEAPONS

Disclosed are an apparatus for a maleic anhydride apparatus to produce high-pressure or ultra-high-pressure steam as a byproduct, and an apparatus production method. The apparatus comprises an ultra-high-pressure steam drum, a communicated molten salt pump, an oxidation reactor, an adjusting valve, molten salt coolers, a communicated switching cooler and gas cooler, and, arranged between the switching cooler and the gas cooler, a boiler water buffer apparatus and a boiler water booster pump. In the present invention, the intermediate pressure boosting of the boiler water and the unique design of the gas cooler make it so that the gas cooler and the switching cooler are extremely easy to manufacture, allowing for avoiding dust accumulation in process gas and achieving ease of cleaning adhered tar, while still being able to effectively recover heat from the process gas, the heat being used for producing high-pressure or ultra-high-pressure steam. At the same time, providing an oxidation reactor with a plurality