Patent classifications
B01D2259/4009
METHOD AND SYSTEM FOR CONTROLLING AN ON-VEHICLE EVAPORATIVE EMISSION SYSTEM
A vehicle system having an internal combustion engine and evaporative emission system including a canister is described, wherein canister includes a chamber having a flexible Metal Organic Framework (MOF) material disposed therein. A controllable device is coupled to the flexible MOF material, and a controller is operatively connected to the controllable device and the purge valve. The controller includes an instruction set that is executable to activate the controllable device and control the purge valve to an open state in response to a command to purge the canister, determine an activation parameter for the controllable device, determine a purge flow, integrate the purge flow to determine a total purge mass, and deactivate the controllable device when the total purge mass is greater than a threshold.
SELECTIVE ADSORPTION OF HALOCARBON IMPURITIES CONTAINING CL, BR AND I IN FLUOROCARBONS OR HYDROFLUOROCARBONS USING ADSORBENT SUPPORTED METAL OXIDE
Methods for purification of a fluorocarbon or hydrofluorocarbon containing at least one undesired halocarbon impurities comprise flowing the fluorocarbon or hydrofluorocarbon through at least one adsorbent beds to selectively adsorb the at least one undesired halocarbon impurities through physical adsorption and/or chemical adsorption, wherein the at least one adsorbent beds contain a metal oxide supported on an adsorbent in an inert atmosphere.
TWO-STAGE METHOD FOR RECOVERING HALOGENATED HYDROCARBONS
The invention relates to a two-stage method for recovering halogenated hydrocarbons. In a desorption step, steam is passed through an adsorbent comprising adsorbed halogenated hydrocarbons, which produces a secondary flow volume containing halogenated hydrocarbons. The secondary flow volume is converted into a condensate containing halogenated hydrocarbons and water by cooling, from which condensate the halogenated hydrocarbons are separated. In a sterilisation step that precedes the desorption step, the adsorbent comprising adsorbed halogenated hydrocarbons is brought into contact with steam for at least 10 minutes at a temperature of more than 120° C. and at a pressure between 0.15 MPa and 0.4 MPa.
Inertizing Method And Inertizing Installation, In Particular For The Avoidance Of Fire
An inertizing method for the avoidance of fire. An inert or poorly-flammable product gas flow (161) is produced starting from a gas mixture flow (141), which contains one reactive gas and one inert gas. The gas mixture flow (141) is supplied to a gas separation unit (110, 120, 410) under pressure and the reactive gas is at least partially separated from the gas mixture flow (141). Gas components which are not separated are removed as a product gas flow (161) and the reactive gas components separated from the gas mixture flow (141) are removed as a secondary product gas flow (151). The removed product gas flow (161) is introduced into a vortex tube (200) and is separated into a hot product gas partial flow (163) and a cold product gas partial flow (162), and the hot and/or the cold product gas partial flow (162, 163) is introduced into an environment (300).
Hybrid low dew point compressed air dryer
The present disclosure is directed to a dryer system for drying compressed gas discharged from a compressor. The dryer system includes a refrigeration drying system operable for removing moisture from the compressed gas and a desiccant drying system with a desiccant wheel located in series downstream of the refrigeration drying system operable for removing additional moisture from the compressed gas.
Carbon dioxide separation recovery system and method
A carbon dioxide separation recovery method includes: bringing a particulate carbon dioxide adsorbent and a treatment target gas containing carbon dioxide into contact with each other to make the carbon dioxide adsorbent adsorb the carbon dioxide contained in the treatment target gas; and bringing the carbon dioxide adsorbent which has adsorbed the carbon dioxide and desorption steam into contact with each other to desorb the carbon dioxide from the carbon dioxide adsorbent, and thereby, regenerate the carbon dioxide adsorbent and recover the desorbed carbon dioxide. The step of recovering the carbon dioxide includes utilizing a recovery gas as a heat source of a heat exchanger, the recovery gas containing the desorption steam which has contacted the carbon dioxide adsorbent and the carbon dioxide which has been desorbed from the carbon dioxide adsorbent.
Carbon dioxide separation recovery system and method
A carbon dioxide separation recovery method includes: bringing a particulate carbon dioxide adsorbent and a treatment target gas containing carbon dioxide into contact with each other to make the carbon dioxide adsorbent adsorb the carbon dioxide contained in the treatment target gas; and bringing the carbon dioxide adsorbent which has adsorbed the carbon dioxide and superheated steam into contact with each other to desorb the carbon dioxide from the carbon dioxide adsorbent and thereby regenerate the carbon dioxide adsorbent, and recovering the desorbed carbon dioxide. A saturation temperature of the superheated steam which is brought into contact with the carbon dioxide adsorbent is not more than a temperature of the carbon dioxide adsorbent which contacts the superheated steam. The regenerated carbon dioxide adsorbent is utilized for adsorption of the carbon dioxide again without being subjected to a drying step.
Operation of a HVAC system to desorb a filter
An HVAC system for a motor vehicle includes a filter that absorbs odors and gases in a cabin of the motor vehicle and desorbs the odors and gases when heated, and a heater that is turned on to heat the filter during cool ambient conditions. The heater is turned off during warm ambient conditions and warm ambient air is utilized to heat the filter. The desorbed odors and gases are purged from the cabin of the motor vehicle.
Chemisorption of carbonyls from liquid phase hydrocarbons using solid sodium bisulfite
Disclosed are methods and systems for removing reactive carbonyl monomers which can polymerize to produce red oil. In an embodiment the method may include cracking a hydrocarbon stream in a fluidized catalytic cracker to produce a cracked hydrocarbon stream comprising carbonyl compounds; separating hydrocarbon components from the cracked hydrocarbon stream in a debutanizer column to form a debutanizer overhead LPG stream comprising the carbonyl compounds; introducing the debutanizer LPG overhead stream into a carbonyl removal unit comprising a metal bisulfite bed; reacting the carbonyl compounds in the debutanizer overhead LPG stream to form a carbonyl adduct with the metal bisulfite; and withdrawing a first LPG product stream from the carbonyl removal unit.
METHOD FOR OPERATING ADSORPTION DEVICE
In a method of operating an adsorption apparatus including a plurality of adsorption beds each packed with a physical adsorbent, when an adsorption step is performed in a part of the adsorption beds and another adsorption bed is to be regenerated, after the adsorption target component adsorbed on the physical adsorbent is desorbed, a gas for cooling is caused to flow through the another adsorption bed so that the another adsorption bed is cooled until an outlet temperature of the another adsorption bed reaches a temperature set in advance. Further, the cooled adsorption bed stands by for switching to the adsorption step while a gas for standby for maintaining a cooled state is caused to flow through the cooled adsorption bed.