Technology and device for recovering volatile tail gas in sulfur collection pit of sulfur device of oil refinery

• Main Authors: NIU SHIJUN, ZHU RUIHE, SUN LIYU, LI CUIPING, LIU XING, PAN YONGLIAN
• Format: Patent
• Language: Chinese; English
• Published: 19.02.2014
• Subjects: BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; CONSUMING WASTE PRODUCTS BY COMBUSTION; CREMATION FURNACES; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING; WEAPONS

The invention relates to a technology and device for recovering tail gas in a sulfur collection pit, in particular to a technology and device for recovering the volatile tail gas in the sulfur collection pit of a sulfur device of an oil refinery. The technology comprises the steps as follows: firstly, a water jacket is used for condensing volatile gas and elemental sulfur in the sulfur collection pit, and condensed sulfur substance returns to the sulfur collection pit; the volatile gas in a supergravity settling reactor is absorbed by a desulfurization solution under the action of a catalyst, and is oxidized into elemental sulfur; and then the desulfurization solution containing elemental sulfur and part of hydrogen sulfide is oxidized and regenerated in a jet regenerator, elemental sulfur is subjected to flotation, returns to a sulfur melting kettle and generates a sulfur product, meanwhile, purified gas is fed into the supergravity settling reactor, discharged out from the upper part of the settling reactor