FIELD: heating.
SUBSTANCE: heat-exchange reactor is made in the form of a jacket of cylindrical shape, which is closed with an upper vault and a lower bottom, at the same time the system of the jacket, the lower bottom and the upper vault is covered with a fire-resistant insulating coating. The jacket comprises multiple parallel bayonet pipes, substantially, with a vertical axis, stretching from a lower part of the jacket to the upper vault, inside which a reaction fluid medium circulates. Each bayonet pipe is surrounded with a smoke pipe along its entire length. At the same time the inlet and outlet of each bayonet pipe is located outside the reactor outside the upper vault, and hot gases produced inside the reactor, enter inside the jacket via a hole, arranged in the lower bottom, then pass into the smoke pipes via inlet holes, arranged in the wall of the specified smoke pipes, and leave the smoke pipes via outlet holes made in the upper part of each smoke pipe, at the same time hot gases leave the heat exchange reactor via a side hole. Each bayonet pipe and a surrounding smoke pipe are suspended to the upper vault of the heat exchange reactor. According to the method of steam reforming of hydrocarbon fraction with use of the heat exchange reactor, in which a fluid coolant medium contains burning smokes, burning happens outside the heat exchange reactor with the help of fuel comprising hydrocarbon fraction with number of carbon atoms from 1 to 20. According to another version of the method of steam reforming of hydrocarbon fraction with use of the heat exchange reactor, pressure inside the jacket makes from 1 to 10 absolute bars, and pressure inside bayonet pipes makes from 25 to 100 absolute bars. According to another version of the method of steam reforming of hydrocarbon fraction with use of the heat exchange reactor speed of circulation of hot gases inside smoke pipes makes from 40 m/s to 75 m/s, and preferably from 50 m/s to 70 m/s. The method to assemble the heat exchange reactor comprises the following main stages: transportation of the reactor as a set, i.e. the jacket, the lower bottom, the upper vault, insulator fixation, transportation of assembled bayonet pipes, arrangement of the lower vault from bricks, installation of a heat insulator on a system from the internal wall of the jacket, the upper vault and the lower bottom, arrangement of a sealing site with leaving of passages for smoke pipes, installation of the lower ceramic part of smoke pipes, installation of the upper metal part of smoke pipes via the top with entrance of the lower end inside the installed ceramic part and fixation of the sealing site, insertion of bayonet pipes inside the smoke pipes and fixation of these pipes both at the level of the top vault, installation of connection headers, charge of catalyst inside bayonet pipes.
EFFECT: improved efficiency of heat transfer between hot gas and reaction fluid medium.
13 cl, 6 dwg, 1 tbl, 1 ex
