FIELD: chemistry.
SUBSTANCE: disclosed is a reactor for large-scale production of dimethyl oxalate from carbon monoxide (CO) and methylnitrite (MN), where one of the embodiments comprises: (a) housing with internal walls (M) of reactor cylinder, wherein said housing forms upper part (I), reactor cylinder (II) and lower part (III); (b) a gas distribution element comprising one or more inlet feed pipes (A) for feeding initial gas, one or more gas distribution amplifiers (G), having gas distributor pores (D), hollow gas cylinder (L) with gas cylinder walls having holes, as well as one or more tail gas discharge branch pipes (F); (c) an internal heat exchange element comprising a bundle (J) of heat exchange tubes; (d) two or more inlet pipe elements equipped with two or more boiler water supply connection pipes (E); and (e) two or more outlet pipe elements equipped with two or more outlet branch pipes (H) for discharging boiling water at high temperature; in which each of said two or more inlet pipe elements corresponds to one of two or more outlet pipe elements, and each inlet pipe element and its corresponding outlet pipe element are located symmetrically around the circumference on lower part (III) and upper part (I), respectively, or on lower part and upper part of cylinder (II), respectively; in which one or more inlet branch pipes (A) of source gas supply, one or several gas distribution amplifiers (G), as well as at least two of two or more outlet pipe elements are located in upper part (I); in which one or more tail gas discharge branch pipes (F), as well as at least two of two or more inlet pipe elements are located in lower part (III); in which gas distributor (D), bundle (J) of heat exchange tubes, catalyst layer (C), as well as gas cylinder (L) are in reactor cylinder (II); wherein catalyst layer (C) is located between gas distributor (D) and gas cylinder (L) and outside of bundle (J) of heat exchange tubes, and also comprises catalyst; in which bundle (J) of heat exchange tubes is located between gas distributor (D) and gas cylinder (L) and provides a pipe channel for continuously flowing boiler water from two or more inlet pipes (E) supply of boiler water to two or more outlet nozzles (H) discharge of boiling water at high temperature, and also performs heat removal; wherein internal walls of reactor cylinder, pores in gas distributor (D) and holes in gas cylinder (L) provide spatial channel for continuous flow of initial gas from one or more inlet nozzles (A) feeding the feed gas to one or more tail gas discharge branch pipes (F), as well as contacting the feed gas with the catalyst in the presence of the removed heat; in which holes in walls of gas cylinder (L) are configured to provide pressure drop in catalyst layer of less than 30 kPa; and in which the starting gas contains carbon monoxide (CO) and methylnitrite (MN), and the catalyst catalyses a process of synthesis of dimethyl oxalate from carbon monoxide (CO) and methylnitrite (MN), wherein the desired product is dimethyl oxalate, and said reactor has dimethyl oxalate productivity of more than 400 kt/year. Also disclosed is a device for large-scale production of dimethyl oxalate from carbon monoxide (CO) and methylnitrite (MN), a device for large-scale production of ethylene glycol from dimethyl oxalate and hydrogen (H2), method of producing dimethyl oxalate from carbon monoxide (CO) and methylnitrite (MN) on a large scale in a reactor, a method of producing ethylene glycol from dimethyl oxalate and hydrogen (H2) on a large scale in a reactor.
EFFECT: technical result is overcoming problems associated with large-scale production of dimethyloxylate synthesis by carbonylation and/or ethylene glycol via hydrogenation in gas phase, by proposing a reactor capable of effectively reducing pressure drop in reactor and associated with working unit.
22 cl, 4 ex, 2 dwg
