Various embodiments disclosed relate to extraction of target materials using a CZTS sorbent. A method of extracting a target material from a medium includes contacting a copper zinc tin sulfur (CZTS) sorbent with the target material in the medium including the target material to form a used CZTS sorbent that includes the target material.

A first aspect of this work relates to water harvesting in power plants. A water adsorbent material is driven through adsorption-desorption cycles using waste heat from a power plant to harvest water from ambient air. In a preferred embodiment, metal-organic-framework (MOF) powders are used as the water adsorbent material for this application. A second aspect of this work relates more generally to rapid adsorption-desorption cycling of MOFs for various applications.

A first aspect of this work relates to water harvesting in power plants. A water adsorbent material is driven through adsorption-desorption cycles using waste heat from a power plant to harvest water from ambient air. In a preferred embodiment, metal-organic-framework (MOF) powders are used as the water adsorbent material for this application. A second aspect of this work relates more generally to rapid adsorption-desorption cycling of MOFs for various applications.

A dishwasher includes a housing having walls defining a tub with an outlet for humid air to flow out from the tub and an inlet for dry air to flow into the tub. The dishwasher also includes a drying system with a fluidized bed containing an adsorbent material, and an air circuit for supplying air to fluidize the adsorbent material via an air inlet, with at least a portion of the air inlet in contact with at least one wall of the tub such that heat is transferred from the tub to the air. During a regeneration cycle, the air circuit supplies heated ambient air to the fluidized bed to regenerate the adsorbent material. During an adsorption cycle, the air circuit receives hot humid air from the tub to be dried by the adsorbent material through the fluidized bed and returned as dry air to the tub.

A dishwasher includes a housing having walls defining a tub with an outlet for humid air to flow out from the tub and an inlet for dry air to flow into the tub. The dishwasher also includes a drying system with a fluidized bed containing an adsorbent material, and an air circuit for supplying air to fluidize the adsorbent material via an air inlet, with at least a portion of the air inlet in contact with at least one wall of the tub such that heat is transferred from the tub to the air. During a regeneration cycle, the air circuit supplies heated ambient air to the fluidized bed to regenerate the adsorbent material. During an adsorption cycle, the air circuit receives hot humid air from the tub to be dried by the adsorbent material through the fluidized bed and returned as dry air to the tub.

A flue gas is cleaned by feeding same to a filtering separator. The filtering separator is accommodated in a housing, and the housing has a pre-filter side ahead of the filtering separator and a clean side following the filtering separator in the flue gas flow direction. A filter element has an adsorbent formed of dust-free spheroidal charcoal on the clean side of the housing. The flue gas flows through the adsorbent in the filter element. Harmful substances from the group including mercury and/or dioxin and/or furan and/or further heavy metals are thereby removed from the flue gas.

A flue gas is cleaned by feeding same to a filtering separator. The filtering separator is accommodated in a housing, and the housing has a pre-filter side ahead of the filtering separator and a clean side following the filtering separator in the flue gas flow direction. A filter element has an adsorbent formed of dust-free spheroidal charcoal on the clean side of the housing. The flue gas flows through the adsorbent in the filter element. Harmful substances from the group including mercury and/or dioxin and/or furan and/or further heavy metals are thereby removed from the flue gas.

A system for reducing carbon dioxide emissions from a flue gas generated via combusting a fossil fuel is provided. The system includes a carbonator and a classifier. The carbonator is configured to receive the flue gas and carbon absorbing particles. The classifier is fluidly connected to the carbonator and configured to receive a mixture that includes heat-transferring particles and the carbon absorbing particles. The mixture is fluidized within the classifier via the flue gas at a velocity such that the flue gas entrains and transports the carbon absorbing particles to the carbonator while the heat-transferring particles are not entrained nor transported to the carbonator.

A system for reducing carbon dioxide emissions from a flue gas generated via combusting a fossil fuel is provided. The system includes a carbonator and a classifier. The carbonator is configured to receive the flue gas and carbon absorbing particles. The classifier is fluidly connected to the carbonator and configured to receive a mixture that includes heat-transferring particles and the carbon absorbing particles. The mixture is fluidized within the classifier via the flue gas at a velocity such that the flue gas entrains and transports the carbon absorbing particles to the carbonator while the heat-transferring particles are not entrained nor transported to the carbonator.

Provided is a carbon dioxide capturing apparatus comprising: a reaction tower including a carbon dioxide adsorption unit or a carbon dioxide absorption unit which adsorbs or absorbs carbon dioxide from exhaust gas; desorption tower connected to the reaction tower and including an adsorbent heating unit for heating an adsorbent circulating inside or an absorbent heating unit for heating an absorbent circulating inside; an adsorbent or absorbent which circulates in the reaction tower and the desorption tower and alternately adsorbs and desorbs carbon dioxide or alternately absorbs and desorbs carbon dioxide; and a heat exchange unit which desorbs carbon dioxide from the adsorbent on which carbon dioxide is adsorbed or the absorbent in which carbon dioxide is absorbed, through heat exchange between the adsorbent on which carbon dioxide is adsorbed and the heated adsorbent, or between the absorbent in which carbon dioxide is absorbed and the heated absorbent, wherein the adsorbent on which carbon dioxide is adsorbed and the heated adsorbent, or the absorbent in which carbon dioxide is absorbed and the heated absorbent are transferred in a co-current flow manner.