Abstract: The present disclosure relates to the technical field of chemical engineering, and specifically discloses a method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number. A reaction-extraction combined process is used in this method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number, wherein the Fischer-Tropsch oil (C5-C20) is firstly subjected to alkaline washing with an alkaline aqueous solution to convert acidic substances into water-soluble salts. The Fischer-Tropsch oil is subjected to a primary extraction with a carbonate-based extractant to remove alcohols and esters therein, and subsequently subjected to a secondary extraction with propylene carbonate to remove ketones and aldehydes impurities therein, thereby removing oxygenated compounds in the Fischer-Tropsch oil. After extraction, the content of the oxygenated compounds in the Fischer-Tropsch oil may be down to 1-60 ppm, and the yield of oil product may be kept 90% or more.

Abstract: A temporary train speed restriction management method and system. Temporary speed restriction instructions are managed by adopting a uniform session management framework. The temporary speed restriction instructions in a session are uniformly processed in a session closing stage. The availability of a communication link is detected. The method and system performs life cycle management on the temporary speed restriction instructions by adding a timeliness mechanism for the message.

Abstract: A fluid driving device includes: a pipe flow system configured to provide a fluid flow channel; a power system configured to provide power for the fluid to flow into and out of the pipe flow system; and a control system, configured to control the operation of the fluid driving device.