49 results about "Gas flare" patented technology

A catalyzed burner is operative to combust an anode exhaust stream from a polymer electrolyte membrane (PEM) fuel cell power plant. The catalysts coated onto the burner can be platinum, rhodium, palladium, or mixtures thereof. The burner includes open cells which are formed by a lattice, which cells communicate with each other throughout the entire catalyzed burner. The burner is able to combust hydrogen in the anode exhaust stream. The catalyzed burner has a high surface area wherein about 70-90% of the volume of the burner is preferably open pores, and the burner has a low pressure drop of about two to three inches water from the anode exhaust stream inlet to the anode exhaust stream outlet. The burner assembly operates at essentially ambient pressure and at a temperature of up to about 1,700° F. (927° C.). The burner can combust anode exhaust during normal operation of the fuel cell assembly. The burner is not adversely affected by gasoline, gasoline combustion products, or anode bypass gas, the latter of which is a reformed fuel gas which is tapped off of the fuel cell stack fuel inlet line.

The invention relates to an exhaust gas aftertreatment system for an internal combustion engine, in particular for a gasoline engine that is spark-ignited by means of spark plugs. A first three-way catalytic converter is situated in an exhaust gas system that is connected to an outlet of the internal combustion engine in a position close to the engine. Downstream from the first three-way catalytic converter, a four-way catalytic converter or a combination of a particle filter and a second three-way catalytic converter downstream from the particle filter is situated in the underbody position of the motor vehicle. An exhaust gas burner with which hot exhaust gas is introducible into the exhaust gas system downstream from the first three-way catalytic converter and upstream from the four-way catalytic converter or the particle filter is provided at an exhaust duct of the exhaust gas system. The exhaust gas burner is supplied with fresh air by a secondary air pump. The invention further relates to a method for exhaust aftertreatment of an internal combustion engine having such an exhaust gas aftertreatment system.

The invention discloses an electric-bag combined converter gas dry cleaning and recovering system. The system is characterized in that a gas hood is connected with an evaporation cooling stack; an evaporative cooling tower is arranged behind the evaporation cooling stack; a single-cell drum-type electrostatic dust collector is arranged behind the evaporative cooling tower; a fan is arranged behind the electrostatic dust collector; a switching station of a bag type waste gas dust collecting device and a bag type gas dust collecting device is arranged behind the fan; the bag type waste gas dust collecting device and the bag type gas dust collecting device are arranged behind the switching station; a gas cooler is arranged behind the bag type gas dust collecting device; and a waste gas burner is arranged behind the bag type waste gas dust collecting device. The system has reasonable structure and good working performances.

The invention relates to an acetylene tail gas recovery device, which belongs to the field of energy conservation and pollution preservation and comprises a tee joint. Three ends of the tee joint are respectively connected with an acetylene tail gas discharge device, an acetylene torch and a first water washing tower. The first water washing tower is connected with a second water washing tower which is connected with a liquid separating fire retarding tower, the liquid separating fire retarding tower is connected with a cracked gas removal compressor inlet, and a cracked gas removal compressor outlet is connected with an extracting and concentrating device. Acetylene tail gas firstly enters the first water washing tower to be carried out preliminary washing, and then enters the second water washing tower to be carried out secondary washing. After two-stage washing of the tail gas, methanal in the tail gas is almost soluble in washing liquid completely, purified tail gas passes through the liquid separating fire retarding tower to be directly sent to an inlet of the cracked gas removal compressor inlet and mixed with pyrolysis gas, and then sent to the extracting and concentrating device after being pressurized by a cracked gas removal compressor, so that recovery and reusing purposes are achieved.

A heated sample pump enclosure maintains a regulated high temperature for the head of a pump as well as a plurality of sample lines that pass through it. The pump receives a flare sample from a process line and then discharges it to any number of external devices while maintaining a constant temperature, as it is being switched and routed within the heated enclosure. There are electrical, thermo and process safety shutdown systems that regulate and monitor the process within the enclosure by means of electrical instrumentation and temperature controls. The enclosure as well as the required equipment is preferably packaged as a unit.

The invention relates to a method for the exhaust aftertreatment of an internal combustion engine, which on the outlet side is connected to an exhaust gas system. Provided in the exhaust gas system is at least one exhaust aftertreatment component with which, upon reaching the light-off temperature of this exhaust aftertreatment component, the gaseous limited exhaust gas components may be converted into unlimited exhaust gas components. An introduction point is provided at an exhaust duct of the exhaust gas system, at which a hot gas, in particular an exhaust gas of an exhaust gas burner, is introduced into the exhaust duct. The hot gas mixes with the exhaust gas of the internal combustion engine in such a way that a hot mixed gas results in which the unburned exhaust gas components are oxidized to unlimited exhaust gas components, without a catalytically active surface. It is provided that the introduction of the hot gas is set as soon as the exhaust gas components of the exhaust aftertreatment system have reached their respective light-off temperature.

A fuel cell module includes a first area where an exhaust gas combustor and a start-up combustor are provided, an annular second area around the first area and where a reformer and an evaporator are provided, an annular third area around the second area and where a heat exchanger is provided, and an annular heat recovery area around the third area as a passage of oxygen-containing gas for recovery of heat radiated from the third area toward the outer circumference.

The invention relates to VOCs containing industrial waste gas treatment process and system. An absorbent outlet is formed at the bottom of an absorbent circulating tank, a mixture inlet and an exhaust cleaning tower are arranged at the top of the absorbent circulating tank, the absorbent outlet is connected with a nozzle on the exhaust cleaning device by an absorbent delivery pipeline, and an absorbent circulating pump and an absorbent cooler are sequentially arranged on the absorbent delivery pipeline; the absorbent delivery behind the absorbent cooler is additionally connected with an absorbent inlet at the upper part of the exhaust cleaning tower; a waste gas inlet of the exhaust cleaning tower is connected with an industrial waste gas pipeline, and a mixture outlet of the exhaust cleaning tower is connected with the mixture inlet of the absorbent circulating tank; a waste gas outlet at the top of the exhaust cleaning tower is connected to a waste gas combustor at the bottom of a waste gas incinerator by a waste gas draught fan; and a chimney is arranged at the top of the waste gas incinerator. According to the invention, a method of combining absorption and incineration is adopted to effectively remove VOCs in industrial waste gas, the process is simple and the investment is low.

A fuel cell module includes a first area where an exhaust gas combustor and a start-up combustor are provided, an annular second area around the first area where a heat exchanger is provided, an annular third area around the second area where a reformer is provided, an annular fourth area around the third area where an evaporator is provided. A plurality of heat exchange pipes are provided in the heat exchanger around a first partition plate. At least one of the heat exchange pipes has at least one constricted portion.

An exhaust control system of a vehicle includes a fuel injector configured to inject fuel into a combustion chamber of a burner of an exhaust system upstream of a selective catalytic reduction (SCR) catalyst; an air pump configured to pump air into the combustion chamber of the burner; a spark plug configured to ignite an air/fuel mixture within the combustion chamber of the burner; a fuel control module configured to, while an engine is off before an engine startup, selectively actuate the fuel injector and begin fuel injection; a pump control module configured to, while the engine is off before the engine startup, selectively turn on the air pump; and a spark control module configured to, while the engine is off and before the engine startup, selectively apply power to the spark plug and begin providing spark.

A method for heating a catalytic converter in an exhaust system of an internal combustion engine, in which an exhaust gas burner for heating the catalytic converter is arranged, upstream of the catalytic converter. A lambda probe for controlling the combustion air ratio of the exhaust gas burner is arranged immediately downstream of the exhaust gas burner and upstream of the catalytic converter. The method includes operating the internal combustion engine with a stoichiometric combustion air ratio (λ_E=1), activating the exhaust gas burner, which is operated alternately with a substoichiometric combustion air ratio (λ_B<1) and a superstoichiometric combustion air ratio (λ_B>1), wherein from the substoichiometric combustion air ratio (λ_B<1) to the superstoichiometric combustion air ratio (λ_B>1) as soon as a rich breakthrough is detected by the second lambda probe (34), and wherein a switchover from the superstoichiometric combustion air ratio (λ_B>1) to the substoichiometric combustion air ratio (λ_B<1) takes place as soon as a lean breakthrough is detected by the second lambda probe.

A set of images is received. A thermal anomaly is detected in the received set of images. The detected thermal anomaly is classified. Examples of classifications of thermal anomalies include: stationary targets, gas flares, agricultural anomalies, and wildfires. An action is taken based at least in part on the classified detected anomaly.

The invention discloses a waste heat recycling system of a complete set of waste oil treatment equipment, and relates to a heating device for waste oil regeneration. The system is characterized in that a bottom line oil heat exchanger, a side line oil heat exchanger, a flue gas rear-section heat exchanger and a flue gas front-section heat exchanger form four-stage heating of waste oil; a heating medium of the bottom line oil heat exchanger is bottom line oil of a fractionating tower, a heating medium of the side line oil heat exchanger is side line oil of the fractionating tower, a heating medium of the flue gas rear-section heat exchanger is flue gas of the rear section of a waste gas burner, and a heating medium of the flue gas front-section heat exchanger is flue gas of the front section of the waste gas burner; the bottom line oil heat exchanger and the side line oil heat exchanger are horizontal cylindrical tank bodies with the same structure, and the flue gas rear-section heat exchanger and the flue gas front-section heat exchanger are vertical hanging type tank bodies with the same structure; and four stages of waste oil heaters are connected in series through pipelines and pipe fittings. The system is scientific and reasonable in structure, safe and reliable, saves energy, reduces the cost of waste oil regeneration, greatly improves high-temperature emission of flue gas, facilitates emission and has popularization value.