Method for producing low-sulfur briquette by utilizing abandoned biomass of saline-alkali soil

Abstract

The invention discloses a production method of clean biomass briquette. The production method comprises the following steps of: crushing raw coal and biomass materials into a certain particle size range; adding the crushed biomass raw materials to an alkali solution with a certain concentration, heating the crushed biomass materials and the alkali solution for a certain time, using the mixed solution obtained after treatment as binder; mixing calcium carbonate and pyroligneous acid according to the mass ratio of the calcium carbonate to the pyroligneous acid being 0.5-8:100, and reacting the calcium carbonate and the pyroligneous acid at the temperature of 20-100 DEG C so as to prepare a desulfurizing and denitrfying agent, wherein the reaction time is 0.5-10h; and uniformly mixing the binder, the desulfurizing agent and the crushed raw coal according to a certain proportion so as to obtain a mixture, performing pressing forming on the material mixture of the under a certain forming pressure, demouding the formed briquette, and drying the demoulded briquette so as to obtain biomass briquette products. The production technology adopted by the method disclosed by the invention is feasible and is simple to operate, waste is not generated, the combustion efficiency of the briquette is improved, and besides the pollutant discharge is reduced. Through effective combination of the biomass and the coal raw materials, the reclamation of biomass type solid waste and the high-efficiency cleaning and utilizing of coal are synchronously realized.

Description

technical field [0001] The invention relates to the fields of clean coal application and biomass resource utilization, in particular to a method for producing low-sulfur clean briquette by using waste biomass in saline-alkali land as a raw material. Background technique [0002] Energy is a key element related to the national economy and people's livelihood, and sufficient energy supply can support sustainable economic and social development. The resource characteristics of "rich coal, little gas, and lack of oil" determine that my country's economic development must be highly dependent on coal resources. At present, coal accounts for as much as 75% of my country's primary energy, and a large amount of energy will still be needed for a long period of time in the future. Use coal resources. The massive consumption of coal has caused many serious environmental problems, and severe air pollution, mainly smog, has cast a shadow over sustainable development. In response to the s...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of low coal utilization efficiency and easy environmental pollution, overcome the shortcomings of traditional briquette production technology, such as complicated process, difficult processing and high cost, and provide a kind of waste biomass and coal in saline-alkali land with high calcium content as raw materials. A method for producing clean biomass briquettes, simultaneously realizing the resource utilization of biomass solid waste and efficient and clean utilization of coal, comprising the following steps: