NOVELTY - A biogas electric generator using microalgae carbon capture comprises biogas production unit (10), which provides first biogas comprises hydrogen sulfide, methane/carbon dioxide, biogas purification unit (20) which receives first biogas and removes hydrogen sulfide of first biogas, and discharges second biogas, microalgae culture unit (30), which houses type of microalgae and receives second biogas, where microalgae uses carbon dioxide of second biogas as carbon source to carry out photosynthesis before microalgae culture unit discharges third biogas, and electric generation unit (40).    USE - As biogas electric generator (claimed), used as a fuel to generate electric energy.    ADVANTAGE - The biogas electric generator reduces carbon dioxide discharge in a process, and to further avoid acceleration of greenhouse effect during a power generation process.    DETAILED DESCRIPTION - A biogas electric generator using microalgae carbon capture comprises (A) biogas production unit (10), which provides first biogas, where first biogas comprises hydrogen sulfide, methane and carbon dioxide; a biogas purification unit (20), which receives first biogas and removes hydrogen sulfide of first biogas, and discharges a second biogas, a microalgae culture unit (30), which houses a type of microalgae and receives second biogas, where the microalgae uses carbon dioxide of second biogas as carbon source to carry out photosynthesis before the microalgae culture unit discharges a third biogas, and an electric generation unit (40), which receives third biogas for use as fuel to generate electric energy, where electric energy powers the biogas electric generator. An INDEPENDENT CLAIM is included for biogas electricity generation method using microalgae carbon capture, involving using a biogas production unit, which feeds a first biogas containing hydrogen sulfide, methane, and carbon dioxide to a biogas purification unit, where the biogas purification unit removes the hydrogen sulfide of the first biogas, and discharges a second biogas, guiding the second biogas to a microalgae culture unit, where the microalgae of the microalgae culture unit feeds on a carbon dioxide of the second biogas for carbon source for photosynthesis, and discharges a third biogas; and transferring the third biogas to an electricity generation unit, which uses the third biogas as a raw material to generate electrical power, which supplies the biogas electricity generator with power in order to operate the biogas electricity generator.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of biogas electric generator.    Biogas production unit (10)    Biogas purification unit (20)    Microalgae culture unit (30)    Electricity generation unit (40)    Heat recycling unit (50)    Biomass fuel generation unit (60)