Full component separation for cell wall of agricultural refuse

Abstract

A separation method of the cell wall constituent in the agricultural waste material is to treat the waste material by the low-density hydrogen peroxide in the special alkaline. So it can dissolve the much hemicellulose and the lignin then to purify the cellulose; while to separate and purify the hemicelluloses and the lignin by the organic solvent. Because of this, we can get the cellulose, hemicelluloses and the lignin. The process doesní»t need to add the sodium hypochlorite so it can improve the productivity and avoid the second environmental contamination.

Description

technical field

[0001] The invention belongs to the field of component separation of agricultural waste, and in particular relates to a method for separating all components of cell walls in agricultural waste. Background technique

[0002] Agricultural waste is an important biomass resource and a product of photosynthesis, which has many advantages such as large output, renewable, short regeneration cycle, biodegradable, and environmentally friendly. According to statistics, my country's annual agricultural straw output exceeds 600 million tons. The traditional utilization methods of agricultural waste are as fertilizer (such as returning straw to the field), feed (such as crushing corn stalks as feed), energy (most of them are directly burned to produce heat), etc. In our country, the use of agricultural waste in these fields only accounts for about 50% of the total. Due to the lack of transformation and utilization, more than 300 million tons of agricultural waste are sti...