초록 ▼

In a process for the recovery of usuable gas from garbage by pyrolysis, the garbage is sorted into a heavy wet vegetable portion and a light dry portion. The light portion is pressed into pellets or granules having characteristics dimensions in a range of 1-50 mm that are dried to a maximum moisture

In a process for the recovery of usuable gas from garbage by pyrolysis, the garbage is sorted into a heavy wet vegetable portion and a light dry portion. The light portion is pressed into pellets or granules having characteristics dimensions in a range of 1-50 mm that are dried to a maximum moisture of approximately 25 wt. %, and then are passed to a pyrolysis reactor in which partially burned gas is generated and separated from noncombustible residues. The partially burned gas is taken to a high temperature gas converter where it is converted to fuel gas over a glowing carbonaceous bed. The heavy vegetable fraction of the garbage is taken to a biomass converter in which it is used to generate methane gas.

대표청구항 ▼

A method for the recovery of usable gas from garbage containing water soluble organic compounds, water insoluble organic compounds, and inorganic compounds, which comprises the steps of: a. separating garbage into a wet vegetable fraction containing water soluble organic compounds and a light dry fr

A method for the recovery of usable gas from garbage containing water soluble organic compounds, water insoluble organic compounds, and inorganic compounds, which comprises the steps of: a. separating garbage into a wet vegetable fraction containing water soluble organic compounds and a light dry fraction containing inorganic compounds and water insoluble organic compounds; b. passing said wet vegetable fraction to a biogas generation zone maintained under conditions sufficient to form a product gas stream comprising methane; c. passing said light dry fraction into a pelletizing zone maintained under conditions sufficient to form said light dry fraction into pellets having a moisture content not greater than about 25 wt.%; d. passing said pellets into a pyrolysis reaction zone maintained under conditions of temperature and oxygen deficiency sufficient to produce a pyrolysis gas containing uncombusted organic compounds and a pyrolysis residual ash containing an organic residue; e. passing said pyrolysis residual ash to said biogas generation zone; f. passing said pyrolysis gas into a high temperature reaction zone comprising a hot carbonaceous bed under conditions sufficient to generate a fuel gas product stream and a high temperature reaction ash containing an organic residue; g. passing said high temperature reaction ash to said pyrolysis reaction zone; and, h. recovering said methane product gas stream and said fuel gas product stream.