A method and device for synchronous oil production, carbon fixation, desulfurization, and denitrification using microalgae

Abstract

The invention discloses a method for synchronously producing oil, sequestrating carbon, desulfurizing and denitrifying by utilizing microalgaes. The method for synchronously producing oil, sequestrating carbon, desulfurizing and denitrifying by utilizing the microalgaes comprises the following steps: 1, selecting species of microalgaes; 2, preparing a microalgae culture medium; 3, disinfecting a photobioreactor; 4, inoculating the microalgaes; 5, culturing the microalgaes; and 6, harvesting the microalgaes. A device for synchronously producing oil, sequestrating carbon, desulfurizing and denitrifying by utilizing the microalgaes comprises a photobioreactor, a lighting system, a temperature control system, a pH and flue gas control system, an alternating current power supply and a power supply master switch, wherein the systems cooperate with the photobioreactor. The device is specially designed for the method, and the method relies on the device. The method disclosed by the invention has the advantages that the flue gas is directly utilized for culturing oil-producing microalgaes, and microalgae oil (a raw material of microalgae biodiesel) is obtained while biological fixation of CO2 in the flue gas and removal of sulfur oxides (mainly sulfur dioxide SO2) and nitrous oxides (mainly nitric oxide NO) are realized. The device disclosed by the invention is reasonable in structure, automatically controls introduction and close of the flue gas and has high efficiency of removing CO2, SO2 and NO in the flue gas.

Description

technical field [0001] The invention relates to the technical field of bioenergy and environmental protection, in particular to a method for synchronous oil production, carbon fixation, desulfurization, and denitrification by using microalgae, and also relates to a method for synchronously producing oil, carbon fixation, desulfurization, and denitrification by using microalgae installation. The method and device utilizes carbon dioxide (CO 2 ), nitrogen oxides (mainly nitric oxide NO) and sulfur oxides (mainly sulfur dioxide SO 2 )’s flue gas to cultivate oleaginous microalgae, oleaginous microalgae use carbon dioxide in the flue gas as a carbon source, nitrogen oxides as a nitrogen source, and sulfur oxides as a sulfur source to grow and reproduce, and accumulate total lipids in the cells to achieve Simultaneous oil production, carbon sequestration, desulfurization and denitrification. Background technique [0002] The energy required for today's social and economic deve...

AI Technical Summary

Problems solved by technology

The flue gas is used for the cultivation of oil-producing microalgae after physical and chemical desulfurization and denitrification, which is the old way of desulfurization and denitrification of industrial waste gas, and cannot fully realize the economic and environmental benefits of cultivating oil-producing microalgae with industrial waste gas

If the flue gas is directly used to cultivate oil-producing microalgae, it can not only reduce the raw material cost of microalgae biodiesel, but also reduce the emission of greenhouse gases and polluting gases, and overcome the investment and Due to the disadvantages of high operating costs and the generation of secondary pollutants, it is of great significance to promote the industrialization of microalgae biodiesel by utilizing the environmental benefits of microalgae biodiesel. , report on denitrification

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