A process for producing syngas that uses the syngas product from a partial oxidation reactor to provide all necessary heating duties, which eliminates the need for a fired heater. Soot is removed from the syngas using a dry filter to avoid a wet scrubber quenching the syngas stream and wasting the high-quality heat. Without the flue gas stream leaving a fired heater, all of the carbon dioxide produced by the reforming process is concentrated in the high-pressure syngas stream, allowing essentially complete carbon dioxide capture.

A process wherein CO.sub.2, methane, and steam react at high temperatures, for instance approximately 1600° C., to form a synthetic gas or syngas. This syngas can then be used in a methanol production plant. The carbon dioxide used to produce the syngas may also comprise recovered emissions from the production of methanol or urea, such that CO.sub.2 is recycled. The rich syngas is produced by the bi-reforming of methane, featuring a combination of dry reforming of methane and steam reforming of methane, via the reaction CO.sub.2+3CH.sub.4+2H.sub.2O.fwdarw.4CO+8H.sub.2, such that the H.sub.2:CO ratio is 2. A plasma reactor may be provided for the reaction. Excess heat from the syngas may be used for heating the water that is used as steam for the reaction.

A biomethanol production system and method is provided. The system comprises (a) a feed stream comprising methane, water, and carbon dioxide; (b) a reformer reactor capable of reacting the feed stream to form a syngas mixture comprising hydrogen, carbon monoxide, and carbon dioxide; (c) a methanol reactor capable of reacting the syngas mixture to form biomethanol product; (d) a wash column comprising the syngas mixture and the biomethanol product, wherein the biomethanol product is capable of absorbing carbon dioxide from the syngas mixture; and (e) a flash column comprising a vent capable of venting the absorbed carbon dioxide. A method for removing carbon dioxide from a biomethanol production system is also provided.

This invention relates to a power recovery process in waste steam/CO.sub.2 reformers in which a waste stream can be made to release energy without having to burn the waste or the syngas. This invention in some embodiments does not make use of fuel cells as a component but makes use of exothermic chemical reactors using syngas to produce heat, such as Fischer-Tropsch synthesis. It also relates to control or elimination of the emissions of greenhouse gases in the power recovery process of this invention with the goal of producing energy in the future carbonless world economy.

A process for producing ethylene and syngas comprising reacting, via OCM, first reactant mixture (CH.sub.4&O.sub.2) in first reaction zone comprising OCM catalyst to produce first product mixture comprising ethylene, ethane, hydrogen, CO.sub.2, CO, and unreacted methane; introducing second reactant mixture comprising first product mixture to second reaction zone excluding catalyst to produce second product mixture comprising ethylene, ethane, hydrogen, CO, CO.sub.2, and unreacted methane, wherein a common reactor comprises both the first and second reaction zones, wherein ethane of second reactant mixture undergoes cracking to ethylene, wherein CO.sub.2 of second reactant mixture undergoes hydrogenation to CO, and wherein an amount of ethylene in the second product mixture is greater than in the first product mixture; recovering methane stream, ethane stream, CO.sub.2 stream, ethylene stream, and syngas stream (CO&H.sub.2) from the second product mixture; and recycling the ethane stream and the carbon dioxide stream to second reaction zone.

The method for recycling carbon dioxide according to the present invention includes: injecting a reaction gas containing carbon dioxide and a carbon raw material into a rotary heating furnace; reacting the reaction gas and the carbon raw material with each other in the rotary heating furnace to generate a hydrocarbon precursor containing carbon monoxide; and converting the hydrocarbon precursor into a hydrocarbon compound, thereby exhibiting excellent conversion rate of carbon dioxide.

A reactor configuration is proposed for selectively converting gaseous, liquid or solid fuels to a syngas specification which is flexible in terms of H.sub.2/CO ratio. This reactor and system configuration can be used with a specific oxygen carrier to hydro-carbon fuel molar ratio, a specific range of operating temperatures and pressures, and a co-current downward moving bed system. The concept of a CO.sub.2 stream injected in-conjunction with the specified operating parameters for a moving bed reducer is claimed, wherein the injection location in the reactor system is flexible for both steam and CO.sub.2 such that, carbon efficiency of the system is maximized.

According to the present invention, organic material is converted to biogas through anaerobic digestion and the biogas is purified to yield a combustible fluid feedstock comprising methane. A fuel production facility utilizes or arranges to utilize combustible fluid feedstock to generate renewable hydrogen that is used to hydrogenate crude oil derived hydrocarbons in a process to make transportation or heating fuel. The renewable hydrogen is combined with crude oil derived hydrocarbons that have been desulfurized under conditions to hydrogenate the liquid hydrocarbon with the renewable hydrogen or alternatively, the renewable hydrogen can be added to a reactor operated so as to simultaneously desulfurize and hydrogenate the hydrocarbons. The present invention enables a party to receive a renewable fuel credit for the transportation or heating fuel.

An integrated system for carbon dioxide capture includes a steam methane reformer and a CO.sub.2 pump that comprises an anode and a cathode. The cathode is configured to output a first exhaust stream including oxygen and carbon dioxide and the anode is configured to receive a reformed gas from the steam methane reformer and to output a second exhaust stream that includes greater than 95% hydrogen.

This disclosure provides a system and method for conversion of raw syngas and tars into refined syngas, while optionally minimizing the parasitic losses of the process and maximizing the usable energy density of the product syngas. The system includes a reactor including a refining chamber for refining syngas comprising one or more inlets configured to promote at least two flow zones: a central zone where syngas and air/process additives flow in a swirling pattern for mixing and combustion in the high temperature central zone; at least one peripheral zone within the reactor which forms a boundary layer of a buffering flow along the reactor walls, (b) plasma torches that inject plasma into the central zone, and (c) air injection patterns that create a recirculation zone to promotes mixing between the high temperature products at the core reaction zone of the vessel and the buffering layer, wherein in the central zone, syngas and air/process additives mixture are ignited in close proximity to the plasma arc, coming into contact with each other, concurrently, at the entrance to the reaction chamber and method of using the system.