Systems and methods of producing a solid fuel composition are disclosed. In particular, systems and methods for producing a solid fuel composition by heating and mixing a solid waste mixture below atmospheric pressure to a maximum temperature sufficient to melt the mixed plastics within the solid waste mixture is disclosed.

Refining assemblies and methods for refining rich natural gas containing a first methane gas and other hydrocarbons that are heavier than methane gas are disclosed. In some embodiments, the assemblies may include a methane-producing assembly configured to receive at least one liquid-containing feed stream that includes water and rich natural gas and to produce an output stream therefrom by (a) converting at least a substantial portion of the other hydrocarbons of the rich natural gas with the water to a second methane gas, a lesser portion of the water, and other gases, and (b) allowing at least a substantial portion of the first methane gas from the rich natural gas to pass through the methane-producing assembly unconverted. The assemblies may additionally include a purification assembly configured to receive the output stream and to produce a methane-rich stream therefrom having a greater methane concentration than the output stream.

Installation for membrane permeation treatment of feed gas containing methane and carbon dioxide that includes first, second, and third membrane separation units. The permeate from the first membrane separation unit is fed to the third membrane separation unit and the retentate from the first membrane separation unit is fed to the second membrane separation unit. The aspiration pressure of the second permeate is adjusted with a compressor according to the aspiration pressure of the second permeate before recycling thereof to the feed gas flow fed to the first membrane separation unit.

Embodiments described herein provide methods of removing contaminants from a gas, the methods including providing a feed gas to a vertical contactor; flowing the feed gas in a gas flow direction through the vertical contactor; mixing a fresh absorbent makeup with a recycled absorbent to form an absorbent mixture; providing a fresh absorbent feed to the feed gas; flowing the absorbent mixture through the vertical contactor in a liquid flow direction counter to the gas flow direction; recovering a clean gas stream from the vertical contactor; and recovering the recycled absorbent from the vertical contactor.

A fuel refinery system comprising a particulate filter adapted to remove particulates from fuel flowing through the fuel conduction system, a water filter adapted to remove water from fuel flowing through the fuel conduction system following its passage through the particulate filter, a magnetic field of sufficient strength to further refine the fuel flowing through the fuel conduction system following its passage through the water filter, a catalyst injector configured to inject the catalyst from a catalyst tank into the fuel flowing through the fuel conduction system following its passage through the magnetic field, a dispensing conduit configured to conduct the fuel from the fuel refinement apparatus following injection of the catalyst.

A process of recovering hydrogen from the conversation of a gas stream that is primarily a mixture of light alkanes into a high-octane liquid stream that includes transporting the gas stream to a reactor at a gas processing facility; and introducing the gas stream into a reactor whereupon components of the gas stream are exposed to electron beam radiation within the reactor to increase the molecular weight of hydrocarbons in the gas stream, thereby producing an upgraded radiolysis fluid stream and recovering a first portion of hydrogen;

This document describes methods for pretreating coal to create either a dried coal or a char product that is stable in the outdoor environment and is more efficient as a feedstock for gasification or other processes than the original coal. Embodiments of the methods include pulverizing and pelletizing the coal, and pretreating the coal pellets to obtain a stable pellet of either dried coal or a stable pellet of chared coal (coal char). The pellets created by the described methods have undergone deoxygenation and carbonization improving their handling and storage properties and, in some cases, energy density. Pore structures within the pellets are stabilized physically and chemically so that the uptake of moisture into dry coal, that leads to internal heat generation, is greatly reduced. Chars are also, therefore, stable against transitions from a dry state to a wet state and less prone to self-ignition.

A method of wet coal processing for electrical power generation comprises the providing a stream of a wet coal mix for an electrical power generation system having a boiler, such as metering coal product onto a conveyor; measuring the amount of moisture of the wet coal mix in the stream, such as with a moisture sensor on the conveyor; determining an amount of drying material to be added to the wet coal mix; adding the determined amount of drying material, such as one or more super absorbent polymers, added to the wet coal mix; Milling the treated wet coal mix; Transporting the milled treated wet coal mix to the boiler of the electrical power generation system for combustion. The method may utilize treated coal wash residual product and teaches a process for treating coal wash residual product.

A municipal solid waste recycling facility for producing a solid recovered fuel is provided. The municipal solid waste recycling facility includes a pre-shredding unit and a shredding unit. The pre-shredding unit includes a trommel configured to sort a first stream of solid waste by size into a second stream of solid waste and a third stream of solid waste. The shredding unit includes a primary shredder configured to shred the second stream of solid waste.

A biomass fuel production plant includes: a drying heat source that generates a heat medium; a drying device that uses the heat medium supplied from the drying heat source to heat and dry wood biomass; a carbonized product production device that is configured to perform pyrolysis of the dried wood biomass to produce a carbonized product; a bulk density measurement device that measures a bulk density of the carbonized product discharged from the carbonized product production device; and a control device that controls a heat quantity of the heat medium supplied to the wood biomass in the drying device. The control device includes an LHV calculation unit that is configured to calculate the LHV of the carbonized product from the bulk density, and controls the heat quantity of the heat medium supplied to the wood biomass in the drying device on the basis of the calculated LHV.