Atomization bioreactor based on synthesis gas fermented ethanol or butanol

Abstract

The invention discloses an atomization bioreactor based on synthesis gas fermented ethanol or butanol. The atomization bioreactor comprises a transparent thallus cultivation tank, a culture medium atomization reaction tank system, an atomization automatic control system, a synthesis gas pneumatic control system and a mash recycling pipeline system. The atomization bioreactor is characterized in that an immobilized fermentation thallus is put on a mesh cultivation layer, then the mesh cultivation layer is put in the thallus cultivation tank, and the fermentation reaction is carried out in the thallus cultivation tank; meanwhile, a culture medium is sprayed to the thallus cultivation tank by using the culture medium atomization reaction tank system so as to provide a nutrient solution for the thallus, and then the atomization automatic control system is used for increasing automatic control, so that the nutrient solution is automatically sprayed as required, and the effect of saving both time and labor is achieved; the synthesis gas pneumatic control system is used for feeding synthesis gas into the thallus cultivation tank so as to supply a carbon source component and an energy source component which are required for anaerobic fermentation bacteria, and in addition, a liquid condensed after atomization is recycled through the mash recycling pipeline system, and the wasting of resources is reduced.

Description

technical field [0001] The invention relates to the technical field of energy production, in particular to an atomization bioreactor for fermenting ethanol or butanol based on syngas. Background technique [0002] Energy is an important material basis for the survival and development of modern society. Since the development of human society, energy has become the focus of international politics, economy, military affairs, and diplomacy. At present, energy and environmental issues are becoming more and more prominent, the world's industrialization is accelerating and the global population is growing rapidly, all of which have accelerated the use and consumption of energy. According to some experts' statistics, the consumption rate of oil and coal as the main energy in the last century has increased by 17 times. The exploitation and consumption of oil and coal have increased the degree of resource and energy scarcity. The world's population is expected to exceed 9 billion in ...

AI Technical Summary

Problems solved by technology

[0004] However, at present, the scale of anaerobic fermentation of syngas to produce ethanol or butanol is far from the real industrialization. There are three main reasons for this. The first is the low efficiency of gas-liquid mass transfer, which is due to the Mainly contain CO, CO 2 、H 2 , N 2 etc., the gas is a liquid slightly soluble gas; second, high-density fermentation production of bacteria has not been realized; third, the syngas component has an inhibitory effect on enzymes, and the research results show that CO in the syngas component has an inhibitory effect on hydrogenase The role is not conducive to the growth of the bacteria and the production of ethanol or butanol

In addition, it has been reported that atomization reactors in the application and other fields often have different degrees of atomized nutrient solution escaped with the gas discharge, which not only reduces the concentration of the nutrient solution but also increases the fermentation process to a certain extent. Chances of contamination during the process

At the same time, whether domestic or foreign, the automation of the operation process of the synthesis gas fermentation reactor equipment is relatively low, which in turn leads to a large demand for energy input and labor.

Images