47results about How to "Desulfurization achieved" patented technology

The invention discloses a cross flow type two-stage moving bed active coke waste gas integrated purification tower which comprises a purification tower main body, wherein the purification tower main body is provided with an active coke feeding region, a denitration region, a transitional layer, a desulfuration region and a discharging layer sequentially from top to bottom; the denitration region comprises a denitration region active coke bed layer, a denitration region inlet chamber and a denitration region outlet chamber; the desulfuration region comprises a desulfuration region active coke bed layer, a desulfuration region outlet chamber and a desulfuration region inlet chamber; the transitional layer comprises an inlet chimney flue with a waste gas inlet, and a discharge hopper, the inlet chimney flue is arranged above the desulfuration region inlet chamber in a conducting manner, the denitration region active coke bed layer is connected with the desulfuration region active coke bed layer through the discharge hopper, and the desulfuration region outlet chamber is connected with the denitration region inlet chamber in a conducting manner. According to the invention, the pollution purification efficiency is high, the active coke utilization ratio is high, and the circulation volume is small; airflow distribution is uniform and the resistance is small; the flowing of the active coke is unobstructed and uniform, the denitration efficiency is high, and the operation is stable.

The invention discloses a pelletizing binder with a desulfuration function and a preparation method and application of the pelletizing binder and belongs to the field of preparation of ferrous metallurgy blast furnace materials. The pelletizing binder with the desulfuration function contains the following components including, by weight, 2.5-10 wt.% of urea, 2.5-10 wt.% of Ca(OH)2 and 80-95 wt.% of bentonite. The pelletizing binder is powder which contains at least 95 wt.% of particles smaller than 0.074 mm in particle size. The defect of high cost of iron ore pellet production and desulfuration in the prior art is overcome. The pelletizing binder has the desulfuration function, can be applied to desulfuration in a pellet production process, can effectively reduce the content of SO2 in pellet smoke, relieves burden of a desulfuration system and does not affect normal pellet production. The preparation method has the advantages of being low in preparation cost and high in efficiency and is suitable for being applied and popularized.

The invention provides a residual oil desulfurization method, a petroleum coke preparation method and production equipment, and relates to the technical field of petroleum coking. The residual oil desulfurization method comprises the following steps: S1) providing residual oil as a reaction raw material, and combining the residual oil with the pre- Mixing the treatment agent to pretreat the residual oil; wherein, the pretreatment agent includes metal alkali and / or metal carbonate; S2) placing the pretreatment mixture obtained in step S1) in an electrostatic field for electrostatic adsorption desulfurization treatment, and then completing Desulfurization of residual oil to obtain residual oil with low sulfur content. The residual oil desulfurization method can alleviate the technical problems of high process difficulty, high cost and poor desulfurization effect in desulfurization of petroleum coke in the prior art, and desulfurization from raw materials can reduce the difficulty of desulfurization and improve the desulfurization effect.