(1) Adopt the internationally advanced fully hydrogenated clean oil refining process to reduce the emission of waste gas pollutants from the source. Total hydrogenation means that sulfur-containing compounds in oil products are converted into hydrogen sulfide through hydrogenation reaction, and then through subsequent treatment, they are finally converted into sulfur products that are pollution-free to the atmosphere. This has set a high benchmark in the whole process design of the project.

(2) Clean fuel gas and clean natural gas after desulfurization are used in the power boilers and refining process furnaces of the whole plant to control the emission of sulfur dioxide and soot in the flue gas to the maximum extent; We introduced a low nitrogen oxide burner to control the generation of nitrogen oxides in flue gas from the source.

(3) The regenerated flue gas of the catalytic cracking unit is separated and dedusted by a three-stage cyclone separator, and the energy is recovered by a waste heat boiler and then sent to a flue gas desulfurization facility; Dupont wet scrubbing system is adopted for flue gas desulfurization to control SOx, nitrogen oxides and particulate matter in flue gas. The treated catalytic regeneration flue gas not only meets the secondary standard in the Comprehensive Emission Standard of Air Pollutants (GB 16297- 1996), but also is far below the limit value. This secondary standard is applicable to residential areas, commercial traffic and residential mixed areas, cultural areas, scenic spots and historical sites and vast rural areas. Determined in urban planning.

(4) The whole plant is equipped with two sets of hot standby sulfur recovery devices to treat sulfur-containing waste gas generated in the refining process and recover sulfur resources. In particular, the world-famous Duke combustion converter is introduced, and with the two-stage Claus conversion and tail gas treatment process, the recovery efficiency can be improved to over 99.8%, reaching the international advanced level. The recovery efficiency of sulfur recovery process in China is generally 98% ~ 99%.

(5) Oil and gas recovery facilities shall be built for loading and unloading facilities, and hydrocarbon components shall be recovered by the process of membrane separation and adsorption, so as to reduce the atmospheric emission of hydrocarbon gas. This is like saying that the gasoline gas emitted by ordinary people when they refuel their cars has been sealed and recycled. We also treated the tail gas of cis-1,4-Butadiene Rubber Factory by catalytic combustion, in order to reduce the atmospheric emission of hydrocarbons.

(6) In order to prevent the odor generated by sewage treatment facilities and structures from polluting the surrounding air, all sewage treatment facilities with volatile malodorous gases are covered and closed, and malodorous gases are collected centrally. Oil refining and ethylene are equipped with 8000 m3/h malodorous gas collection and treatment device, and the biological process of "biological trickling filtration, biological pond filtration and biological oxidation filtration" is adopted, and the removal rate of malodorous gas can reach 95%.