Biomethane; Candles; Fuel; Alcohol fuel; All-purpose lubricants; Aromatherapy fragrance candles; Automobile lubricants; Candle wicks; Carnauba wax; Charcoal for use as fuel; Engine oil; Ethanol fuels; Fuel oil; Gear oil; Graphite lubricants; Grease for machines; Grease for shoes; Gun barrel oil; Industrial lubricants; Industrial paraffins