Straw biogas pretreatment method by yellow corn silage

Abstract

The invention discloses a straw biogas pretreatment method by yellow corn silage. The method includes the steps: crushing harvested straws, filling the crushed straws into a vessel for yellow corn silage of the straws layer by layer, simultaneously adding moisture layer by layer according to a certain proportion in the filling process, and compacting layer by layer; covering and tightening the vessel filled the straws by the aid of plastic cloth, enabling the vessel to be sealed, and performing yellow corn silage under the condition. The pretreatment method is economical, simple, convenient and efficient, a novel pretreatment method is provided for efficient utilization of biogas of the crop straws, mass treatment can be achieved, the pretreatment method solves the problems that the straws cannot be incinerated and are largely stacked in the fields after the autumn harvest in northeast areas of China a certain extent, straw treatment cost becomes lower and lower along with maturity of straw biogas technologies of the yellow corn silage, biogas cost is reduced along with the straw treatment cost, biogas power generation and biogas have certain competition ability as compared with traditional energy, and the pretreatment method solves the problems of shortage in fossil energy and high new energy cost.

Description

technical field [0001] The invention relates to a yellow storage process, in particular to a method for pretreatment of yellow storage using straw biogas. Background technique [0002] Straw resources in Northeast my country are extremely rich and have great potential as raw materials for biogas projects. Due to the special lignocellulose structure of straw, it is difficult to be directly transformed and utilized. Moreover, after the harvest of corn in autumn, a large number of stalks are piled up in the field. The corn stalks dry and yellow, and the moisture content of the raw materials is too low to meet the requirements of silage technology. The silage straw biogas technology cannot be realized in Northeast China. Yellow silage has lower technical requirements and can achieve a pretreatment effect similar to that of silage. It has broad prospects for promotion in the application of straw biogas engineering in cold northern regions of my country. Dry straw has a sour arom...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that straw lignocellulose is difficult to be directly transformed and utilized, the present invention provides a method for pretreatment of straw biogas using yellow storage, by optimizing the key parameters of the yellow storage process, the conversion rate of refractory components in straw is improved, and the yield of straw is improved. To find a feasible new path for the utilization of straw resources and the popularization and application of biogas projects in Northeast China

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