4 results about "Ethanol fuel" patented technology

The invention provides a marine ethanol fuel supply system and an operation control method.The supply system at least comprises a first heat exchanger and a second heat exchanger, a first flow channel and a second flow channel which are not communicated with each other are arranged in the first heat exchanger, the inlet end of the first flow channel is connected with an ethanol storage tank, and the outlet end of the first flow channel is connected with an ethanol consumption unit; the inlet end of the second flow channel is connected with the second heat exchanger, the outlet end of the second flow channel is connected with the water glycol solution expansion water cabinet, a third flow channel and a fourth flow channel which are not communicated are arranged in the second heat exchanger, and the inlet end of the third flow channel is connected with the water glycol solution expansion water cabinet, and the outlet end of the third flow channel is connected with the first heat exchanger. The inlet end of the fourth runner is connected with the water source inlet, and the outlet end is connected with the water source outlet. The low-temperature ethanol fuel can utilize part of heat of water, the water glycol solution and inlet water conduct heat exchange in the second heat exchanger, the heat lost by the water glycol solution in the first heat exchanger is supplemented, and the temperature requirement of the ethanol fuel in the supply system is met.

The invention belongs to the field of fuel cells, and relates to a preparation method of a conductive oxide supported palladium ethanol fuel cell anode catalyst, the catalyst is a Pd / c-TiO2 (at) MoO3 catalyst, the preparation method comprises the following steps: mixing TiO2 and a molybdenum source, roasting to obtain TiO2 (at) MoO3, and carrying out chemical reduction to obtain conductive c-TiO2 (at) MoO3; after dispersing, adding a palladium precursor for adsorption, reducing by a reducing agent, washing and drying to obtain a Pd / c-TiO2 / MoO3 anode catalyst, and loading the Pd / c-TiO2 / MoO3 anode catalyst on an electrode substrate for activation to obtain the working electrode. The method is simple in process and high in controllability, and the obtained catalyst is excellent in conductivity and catalytic performance, can be used for direct ethanol fuel cell anode catalytic ethanol oxidation reaction and is good in application prospect. The invention provides a novel and feasible solution for the stability problem of the anode catalyst of the direct ethanol fuel cell, and is expected to promote the industrial application process of the direct ethanol fuel cell.

The invention relates to a misfire diagnosis method and structure based on ethanol fuel concentration. The method comprises the following steps: judging an enabling condition; determining a misfire detection mode; testing and calculating an extreme value of a misfire threshold, respectively using ethanol fuel with the lowest ethanol concentration and ethanol fuel with the highest ethanol concentration, collecting crankshaft rotation time data under the corresponding ethanol concentration, and calculating the misfire threshold; reading the ethanol concentration, calculating a misfire threshold value according to the ethanol concentration, reading the ethanol concentration, and calculating a misfire threshold value corresponding to the target ethanol concentration according to the misfire threshold values corresponding to the lowest ethanol concentration and the highest ethanol concentration respectively and a coefficient obtained according to the ethanol concentration; determining a misfire rate, identifying a misfire cylinder, performing statistics according to the misfire index to obtain the misfire rate, and correspondingly judging the misfire cylinder; determining a detected misfire type; and a misfire test result and a misfire cylinder are reported. Compared with the prior art, the method has the advantage that the fire working conditions under different ethanol concentrations can be accurately identified.

This invention belongs to the field of fuel cell technology, specifically relating to a method for preparing an anode catalyst layer for an ethanol fuel cell based on a Pd@Ni / Co3O4 composite material. The method includes the following steps: adding a metal salt solution composed of cobalt and nickel salts to a 2-methylimidazole solution and allowing it to stand for aging to obtain Ni / ZIF-67; calcining the Ni / ZIF-67 to obtain a porous Ni / Co3O4 material; dispersing the porous Ni / Co3O4 material in a Pd(Ac)2 solution, stirring and reacting, and drying to obtain the Pd@Ni / Co3O4 composite material; dispersing the Pd@Ni / Co3O4 composite material and single-walled carbon nanotubes in a solvent to obtain a catalyst slurry; and then coating the catalyst slurry onto the surface of carbon cloth to obtain the anode catalyst layer. This process is simple, low-cost, and suitable for the large-scale preparation of anode catalyst layers for ethanol fuel cells.