Disclosed is a pyrolysis system (1) comprising a pyrolysis reactor (2) arranged for producing pyrolysis gas and a first condensing unit (3) arranged to cool the pyrolysis gas to a first temperature to condense a first pyrolysis liquid (20). The system further comprises a second condensing unit (4) arranged to cool the pyrolysis gas to a second temperature to condense a second pyrolysis liquid (21), wherein the first temperature is higher than the second temperature. The system also comprises a return conduit (5) arranged to guide a portion of the pyrolysis gas back into the pyrolysis reactor (2) to drive the pyrolysis process, and heating means (6) arranged to increase the temperature of the portion of the pyrolysis gas before it reenters the pyrolysis reactor (2). The pyrolysis reactor (2) is a fixed bed counterflow pyrolysis reactor (2) comprising a pyrolysis gas outlet (7) arranged at an upper part (8) of the pyrolysis reactor (2) through which the produced pyrolysis gas leaves the pyrolysis reactor (2), a pyrolysis gas inlet (9) arranged at a lower part (10) of the pyrolysis reactor (2), through which the heated pyrolysis gas reenters the pyrolysis reactor (2), a feedstock inlet (11) arranged at the upper part (8) of the pyrolysis reactor (2) through which feedstock (19) enters the pyrolysis reactor (2) and a char outlet (12) arranged at the lower part (10) of the pyrolysis reactor (2), through which char produced in the pyrolysis reactor (2) leaves the pyrolysis reactor (2). Furthermore, a method for producing producing purified pyrolysis gas and pyrolysis liquids and use of a pyrolysis system (1) is disclosed.

The invention relates to a method and an apparatus for removing impurities from a gasification gas, wherein the gasification gas which includes at least tars and/or undesired hydrocarbons is supplied to a catalytic reformer which has at least one catalyst bed, oxygen containing gas is injected onto the surface of the catalyst bed, the gasification gas is arranged to flow through the catalyst bed and arranged to contact with the oxygen containing gas in the catalyst bed, and a purified gas is discharged from the catalytic reformer. Further, the invention relates to the use of the method.

The invention relates to a method and an apparatus for purifying gas, wherein the gas which includes at least tars and/or undesired hydrocarbons is supplied to a catalytic treatment reactor which has at least one catalyst zone including at least one catalyst element with a catalyst, oxygen gas is fed into the catalyst element of the catalyst zone in the catalytic treatment reactor and is supplied through the catalyst element, the gas is arranged to flow to the catalyst zone and arranged to contact with the oxygen gas and the catalyst, and a purified gas is discharged from the catalytic treatment reactor. Further, the invention relates to the use of the method.

A process for producing syngas from pre-treated recovery plastic polymers comprising:

a) gasifying said recovery pre-treated polymers according to the following reaction scheme R1:

[—CH.sub.2—]+H.sub.2O═CO+2H.sub.2;  R1:

b) hydrogenating said pre-treated polymers to higher hydrocarbons and methane by using hydrogen produced in R1, according to the following reaction scheme R3:

[—CH.sub.2—].sub.n+H.sub.2═C.sub.nH.sub.(2n+2)  R3:

wherein n is an integer of from 1 to 3, said reaction being optionally combined with oligomers and olefin formation reactions;
c) steam reforming of methane according to the following reaction scheme R4:

CH.sub.4+H.sub.2O═CO+3H.sub.2;  R4:

and optionally
d) reforming reaction of methane according to the following reaction scheme R5:

CH.sub.4+CO.sub.2=2CO+2H.sub.2;  R5:

said process being carried out in a plant (10), (20), (30), (40), (50) comprising a gasification section (11), (21), (31), (41), (51) and a reforming section (12), (22), (32), (42), (52) comprising a tube bundle (13), (23), (33), (43), (53) provided with a catalyst wherein,
i) said gasification (11), (21), (31) and reforming sections (12),(22), (32) are part of a sole reactive unit (10), (20), (30), or said gasification (41), (51) and reforming section (42), (52) are two physically distinct reactive units (40), (50),
ii) the gasification section (11), (21) or the reactive unit (41) provides respectively the energetical support to the reforming section (12), (22) or to the reforming reactive unit (42), thanks to the exothermic combustion reaction scheme R2:

[—CH.sub.2-]+1.5O.sub.2═CO.sub.2+H.sub.2O;  R2:

or in alternative: the reforming section (

The present disclosure relates to a process and a system for producing synthesis gas. The carbonaceous feedstock is gasified, in the presence of at least one of oxygen and steam, in a first reactor to obtain a gaseous mixture comprising H2, CO, CH4, CO2, H2O, tar and char. The gaseous mixture is treated in a second reactor, in the presence of a catalyst, to obtain synthesis gas. The system comprises a first reactor, a connecting conduit, a second reactor, at least one cyclone separator, at least one heat exchanger and at least one synthesis gas filter unit. The process and the system of the present disclosure are capable of producing synthesis gas with comparatively higher conversion of the unreacted char.

A portable, sustainable, and efficient system and apparatus for breaking down processed solid plastic waste and other polymer-based feedstock into fuel oil, sustainable energy, carbon char, and other useful products. With minor modifications, biomass can also be treated. Distributed microwave heating sources and mechanical mixing effectively mix heat in a highly insulated reactor that protects the microwave components, makes fast pyrolysis possible, and thereby enables scaling down to compact and highly portable systems. Products include diesel, gasoline, propane, butane, and char. Product materials are distributed using tight temperature control and mechanical routing.

A method is provided for removing tar from a gas by contacting a first gas containing tar with a second gas containing oxygen for time period sufficient to effect oxidation of at least a portion of the tar in the first gas, thus producing an oxidized product gas that contains less tar than the first gas. The method can also include heating a fluidized particulate material in a combustor, introducing the heated fluidized particulate material from the combustor and a biomass feedstock into a gasifier, such that heat from the heated fluidized particulate material causes the gasification of at least a portion of the biomass feedstock to form a tar-containing product gas, the first gas may contain at least a portion of the tar-containing gas, and the tar-containing gas may be extracted from the gasifier prior to contacting the first gas with the second gas.

A gasified gas production system of the present disclosure includes a gasification furnace which produces a gasified gas by gasifying a gasification raw material, a flow passage through which the gasified gas produced in the gasification furnace flows, a catalyst-holding unit which holds a catalyst which promotes reforming of tar included in the gasified gas inside the flow passage, and an oxidation agent supply unit which supplies an oxidation agent with a temperature of 200° C. to 900° C. to the catalyst.

An integrated plant to generate chemical grade syngas from a steam biomass reforming in a multiple stage bio reforming reactor for use with either a high temperature or low temperature Fischer-Tropsch synthesis process to produce fuel from biomass is discussed. The first stage has a reactor to cause a chemical devolatilization of a biomass feedstock from the biomass feedstock supply lines into its constituent gases of CO, H2, CO2, CH4, tars, chars, and other components into a raw syngas mixture. A second stage performs further reforming of the raw syngas from the first stage into the chemical grade syngas by further applying heat and pressure to chemically crack at least the tars, reform the CH4, or a combination of both, into their corresponding syngas molecules. The second stage feeds the chemical grade syngas derived from the biomass feedstock to the downstream Fischer-Tropsch train to produce the fuel from the biomass. One or more recycle loops supply tail gas or FT product back into the plant.

The present disclosure provides a method for preparing hydrogen-rich gas by solid organics. For example, solid organic raw materials are heated in a pyrolysis reaction device to perform pyrolysis reaction, and gaseous product generated from the pyrolysis reaction performs gasification with steam in a moving bed gasification reaction device to generate hydrogen-rich product. The present disclosure also provides a system for preparing hydrogen-rich gas by solid organics, and the system may include a solid heat carrier grading-dedusting device; a pyrolysis reaction device; a moving bed gasification reaction device; and a riser and combustion reactor. The present disclosure may operate at atmospheric pressure, and the technology is simple and suitable for the gasification and co-gasification of various high-volatile solid organics, such as raw materials containing a relatively large amount of moisture, mineral substance, and sulfur content.