High-energy carbon-alcohol slurry clean fuel and preparation method thereof

Abstract

The invention provides high-energy carbon alcohol clean fuel slurry and a preparation method thereof. The clean fuel is prepared from the following components in percentage by weight: 45-63 percent of pulverized coal which is over 300mesh and 37-55 percent of methanol, as well as, by total weight of the pulverized coal and methanol, 1-2 percent of a stabilizing agent, 1-3 percent of a dispersing agent, 0.1-0.3 percent of micron-metal powder, 0.1-0.2 percent of a catalyst, 0.5-1 percent of a desulfurizing agent, and a pH regulator which is used for regulating the pH value to 6.5-7.5. The clean fuel has the advantages of high combustion rate, high heat value, low cost and small emission of sulfur dioxide and nitrogen oxide, and can be widely applied to various boilers, diesel engines, gas turbines, tunnel type ceramic firing kilns, refractory brick down-draft kilns, hot-blast stoves of ceramic spray drying towers, rotary cement kilns, iron ore sintering machines and the like.

Description

technical field [0001] The invention relates to a clean coal technology, in particular to a high-energy carbon-alcohol slurry clean fuel with high combustion efficiency, low viscosity and good fluidity and a preparation method thereof. Background technique [0002] Traditional burning of raw coal is not only inefficient, but also causes air pollution. The Chinese Academy of Sciences recently announced the latest research results of the "Atmospheric Haze Tracing and Control" special group, pointing out that motor vehicle emissions and coal burning are the main causes of haze in recent years, among which sulfur dioxide and nitrogen oxides are the most direct causes of PM2.5 source. At present, my country's sulfur dioxide and carbon dioxide emissions rank first in the world, acid rain covers more than 12.6% of the country's land area, and carbon dioxide emissions account for 23.33% of the global total. In order to reduce the environmental pollution caused by coal combustion, ...

AI Technical Summary

Problems solved by technology

However, coal water slurry has a certain selectivity for pulping coal, and its ignition point is higher, the calorific value and combustion temperature are lower than those of coal combustion, the requirements for pipelines and nozzles are relatively high, and the cost of transformation is relatively high

[0004] In recent years, in order to improve the emission of harmful components in fuels, alcohol-based fuels have been proposed, that is, fuels with methanol as the main raw material. Although this alcohol-based fuel is used in Sulfur dioxide and nitrogen oxides have been improved, but alcohol-based fuels have problems of low calorific value and high cost

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