1209results about "Gas purification by liquid washing" patented technology

A method and apparatus for synthesizing ethanol using synthetic routes via synthesis gas are disclosed. A method and apparatus for gasifying biomass, such as biomass, in a steam gasifier that employs a fluidized bed and heating using hot flue gases from the combustion of synthesis gas is described. Methods and apparatus for converting synthesis gas into ethanol are also disclosed, using stepwise catalytic reactions to convert the carbon monoxide and hydrogen into ethanol using catalysts including iridium acetate.

A novel process and apparatus for power generation from biomass and other carbonaceous feedstocks are provided. The process integrates a pulse combustor steam reformer with a gas turbine to generate electricity such that (i) efficiency is higher than those of conventional and current advanced power systems, (ii) emissions are lower than those proposed in the new environmental regulations, and (iii) performance is comparable to that of combined cycle, even though a bottoming cycle is not included here. The pulse combustor steam reformer generates a hydrogen-rich, medium-Btu fuel gas that is fired in a gas turbine to generate electricity. The apparatus may be configured to produce only power or combined heat and power.

An acid gas scrubbing apparatus and method brings a gas, to be scrubbed, containing carbon dioxide into contact with a gas scrubbing liquid containing alkaline agent and cooled, and acid gases in the gas are removed. A gas scrubber removes acid gases in a gas, to be scrubbed, containing carbon dioxide by bringing the gas to be scrubbed into contact with a gas scrubbing liquid containing alkaline agent. A scrubbing liquid regenerator regenerates and cools the gas scrubbing liquid by bringing the gas scrubbing liquid into contact with a regenerating gas having components different from the gas scrubbing liquid and the gas to be scrubbed. A circulating device is provided between the gas scrubber and the scrubbing liquid regenerator for circulating the scrubbing liquid.

A method of treating biomass feed by pyrolyzing it in the presence of superheated steam at a selected temperature for a sufficient time to produce at least one product stream.

An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.

A humidifier includes a base defining a reservoir for retaining liquid, a humidification device for inducing dispersion of liquid withdrawn from the reservoir into the environment and a liquid storage tank having an outlet for feeding liquid into the reservoir. The humidification device includes a heated disc for evaporating a stream of liquid delivered from the reservoir to the heated disc by a delivery mechanism. The delivery mechanism may deliver the stream of liquid as a mist, a thin film or a controlled stream of liquid onto the disc.

A Waste to Liquid Hydrocarbon Refinery System that transforms any municipal solid wastes and hazardous industrial wastes, Biomass or any carbon containing feedstock into synthetic hydrocarbon, particularly, but not exclusively, diesel and gasoline and/or electricity and co-generated heat, comprising three major subsystems: i) the Pyro-Electric Thermal Converter (PETC) (10) and Plasma Arc (PA) waste and biomass gasification subsystem (1); ii) the hydrocarbon synthesis subsystem (2); and iii) the electricity generation and heat co-generation subsystem (3).

Disclosed is a gasification technique for converting biomass, which is difficult to treat, into clean gas fuel able to be burned in a cogeneration system. The gasification technique includes first stage fluidized-bed catalytic gasification, and second stage gasification of tar and catalytic reforming to convert nitrogen in tar, and HCN in a flammable gas into NH₃, unlike conventional gasification techniques. In addition, since the temperature of a total gasification process is lower than a melting point of ash, powdery ash is generated and thus easily treated. Also, little heat is released due to the low process temperature, and therefore, a compact reactor may be designed to produce gas having a high caloric value. Further, the generated tar is recovered and reused in other processes, and the gas fuel contains a small amount of ammonia.

The invention relates to a gas liquid contactor and effluent cleaning system and method and more particularly to an array of nozzles configured to produce uniformly spaced flat liquid jets shaped to minimize disruption from a gas. An embodiment of the invention is directed towards a gas liquid contactor module including a liquid inlet and outlet and a gas inlet and outlet. An array of nozzles is in communication with the liquid inlet and the gas inlet. The array of nozzles is configured to produce uniformly spaced flat liquid jets shaped to minimize disruption from a gas flow and maximize gas flow and liquid flow interactions while rapidly replenishing the liquid.

A method of operating an engine is disclosed, which includes determining a peak power condition for the engine, measuring a temperature associated with the engine at said peak power condition, comparing the temperature measured with a previously determined temperature associated with a known peak power condition of the engine, determining an offset value based on the comparison made in step, controlling at least one of an air-fuel mixture delivered to the engine or ignition spark timing based on said offset value. Various engine fuel delivery systems, carburetors, fuel injection and control systems also are disclosed.

A membrane supported biofilm reactor uses modules having fine, dense, non-porous hollow fibers made from Polymethyl pentene (PMP) formed into a fabric with the PMP as the weft. One or more sheets of the fabric are potted into a module to enable oxygen containing gas to be supplied to the lumens of the hollow fibers. Various reactors using such modules are described.

An improved quench ring in combination with a reactor vessel having a refractory lined reaction chamber with a bottom outlet and a floor to support the refractory lined reaction chamber, wherein the quench ring is protected by a protective barrier comprising dense refractory brick, dense refractory ramming mix, refractory ceramic fiber, and a metal apron support. The protective barrier is removably attached to a portion of the quench ring hotface and protects the quench ring from the high temperature of the effluent exiting the reaction chamber.

The water carbonation method and apparatus of the present invention consists of a square mixer within a carbonated chamber. The mixer is partially filled with water. Carbon dioxide is then added above the level of water. A rotating member attached to the mixing motor then mixes the water and carbon dioxide to from a carbonated solution. Varying the time for which the carbonation operation is carried on may vary the degree of carbonation. After the specified carbonation cycle, excess carbon dioxide is then relieved through an exhaust solenoid and the remaining carbonated solution is released through the dispensing solenoid into a cup.

A gasifier includes a combustion chamber in which a combustible fuel is burned to produce a syngas and a particulated solid residue. A quench chamber having a liquid coolant is disposed downstream of the combustion chamber. A dip tube is disposed coupling the combustion chamber to the quench chamber. The syngas is directed from the combustion chamber to the quench chamber via the dip tube to contact the liquid coolant and produce a cooled syngas. A draft tube is disposed surrounding the dip tube such that an annular passage is formed between the draft tube and the dip tube. An asymmetric or symmetric baffle is disposed proximate to an exit path of the quench chamber. The cooled syngas is directed through the annular passage and impacted against the asymmetric or symmetric baffle so as to remove entrained liquid content from the cooled syngas before the cooled syngas is directed through the exit path.