NOVELTY - Apparatus (A1) comprises: a first port that is fluidically coupled to a source of a first gas, where the first gas comprises syngas (110) and tars; a first reactor; a second port that is fluidically coupled with the first reactor so that the second port receives a second gas that is based on the first gas; and a third port that is fluidically coupled with the first reactor so that the third port receives the first liquid fuel.    USE - The apparatus is useful for generating electrical energy from combustion of biomass.    ADVANTAGE - The apparatus: utilizes updraft gasifiers that are capable of extracting more usable energy from a biomass than other types of gasifiers, and generate output gas that has less particulate than other types of gasifiers; and recovers a greater total amount of energy from a biomass in a cost effective manner.    DETAILED DESCRIPTION - Apparatus (A1) comprises: a first port that is fluidically coupled to a source of a first gas, where the first gas comprises syngas (110) and tars; a first reactor, where the first reactor is dimensioned and arranged to bring the first gas into contact with a first liquid so that the first liquid absorbs and dissolves tars from the first gas to form a first liquid fuel (112) comprising the dissolved tars; a second port that is fluidically coupled with the first reactor so that the second port receives a second gas that is based on the first gas, where the second gas has a lower concentration of tars than the first gas; and a third port that is fluidically coupled with the first reactor so that the third port receives the first liquid fuel. INDEPENDENT CLAIMS are also included for:    (1) an apparatus (A2) comprising: a gasifier (102), where the gasifier is an updraft gasifier that is physically adapted to generate the first gas from a biomass; a first reactor, where the first reactor receives the first gas from the gasifier, the first reactor mixes the first gas and a first liquid comprising a first petrochemical so that the first liquid absorbs tars from the first gas and enables the tars to form a second liquid comprising a second petrochemical, and the first reactor provides a second gas that is based on the first gas; and an engine (128), where the engine is an internal combustion engine that is dimensioned and arranged to operate with syngas, the first petrochemical and the second petrochemical, and the engine receives the second gas, the first liquid and the second liquid;    (2) generating electrical energy from combustion of biomass comprising: providing the first gas that includes syngas and a first concentration of tars; mixing the first gas with the first liquid, where the first liquid absorbs tars from the first gas to provide the second gas having a second concentration of tars that is less than the first concentration of tars; and converting the absorbed tars into a first liquid fuel; and    (3) an apparatus (A3) comprising: a reactor that dimensioned and arranged to receive the first gas, where the reactor is physically adapted to induce a vortex-shaped plasma comprising the first gas, and the plasma is suitable for decomposing a first portion of the first gas into a second gas comprising lower molecular weight hydrocarbons; and a catalyst bed that is fluidically coupled with the second reactor to receive the second gas and a second portion of the first gas, where the catalyst bed includes a catalyst suitable for inducing decomposition of tar molecules into a third gas comprising lower molecular weight hydrocarbons, and the catalyst is shaped to define a channel suitable to convey the second gas through the catalyst bed so that it bypasses the catalyst.    DESCRIPTION OF DRAWING(S) - The figure depicts a schematic drawing of an electrical-energy generation system.    Gasifier (102)    Syngas (110)    Liquid fuel (112)    Filter (120)    Engine (128)