Fuel oil sulfur content treatment method and related device

Abstract

Embodiments of the invention disclose a fuel oil sulfur content treatment method and a related device, which are used for conducting decomposition processing on sulfides generated by combustion of fuel oil with different sulfur contents, so that the failure probability of a catalyst in a fuel oil device is reduced. The method provided by the embodiments of the invention comprises the following steps of determining first conversion efficiency of the catalyst in the fuel oil device on NOX gas; judging whether the first conversion efficiency is smaller than or equal to a first preset value; if yes, controlling the opening degree of a throttle valve of the fuel oil device to be reduced in order to enable the amount of air entering an engine cylinder of the fuel oil device to be smaller than the amount of air needed by sufficient combustion reaction in the cylinder and the combustion reaction in the cylinder to deteriorate, and inputting a large amount of generated waste gas and residual energy into the catalyst to increase the internal temperature of the catalyst ; detecting the internal temperature of the catalyst in real time; judging whether the internal temperature of the catalystis not less than a second preset value or not at the first moment; and if not, controlling the opening degree of the throttle valve to be reduced in order to reduce the amount of air entering the engine cylinder.

Description

technical field [0001] The embodiments of the present application relate to the technical field of engines, and in particular, to a method and a related device for processing the sulfur content of fuel. Background technique [0002] For a long time, petroleum products have been closely related to the automobile industry, and gasoline and diesel are almost all used as fuel for diesel engines. The fuel engine generates kinetic energy by burning fuel in the cylinder, and then drives the piston in the engine cylinder to reciprocate, thereby driving the connecting rod connected to the piston and the crank connected to the connecting rod, and reciprocating circular motion around the center of the crankshaft to output Power, among them, the sulfur content of fuel needs to meet the national standard. [0003] In today's society, many vehicle drivers will go to irregular refueling points to refuel their vehicles due to the control of vehicle costs. The fuel costs at these informal ...

AI Technical Summary

Problems solved by technology

The fuel costs at these informal refueling points are relatively low, and they are not produced according to the standard oil refining process, and the sulfur content far exceeds the national standard. Therefore, when the fuel engine is running with these fuels that exceed the standard, the fuel burns in the cylinder of the engine. A large amount of sulfur oxide is produced, and the sulfur oxide forms sulfate and accumulates on the catalyst under the selective catalytic reduction reaction. If the vehicle continues to drive in this state, it will cause irreversible failure of the catalyst

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