摘要:
Wastewater, for example flue gas desulphurization blowdown water, containing soluble selenium is treated in a bioreactor. Microorganisms in the reactor reduce the selenium to elemental selenium, which is insoluble. The elemental selenium is discharged from the reactor in waste sludge also comprising biomass and other suspended solids. Non-microbial suspended solids are removed by way of acid dissolution followed by de-watering. The remaining sludge is burned at a temperature below the selenium oxidation temperature to remove biomass while leaving selenium particles behind.
摘要:
A method for manufacturing a solid oxide electrochemical device comprising disposing electrolyte between a first electrode and a second electrode, applying a bonding agent between the first electrode and a first interconnect, applying a sealing agent between the first electrode and the first interconnect, disposing a second interconnect adjacent to the second electrode, heating the first interconnect, the first electrode, the electrolyte, the second electrode, the second interconnect, the bonding agent, and the sealing agent to at least one intermediate temperature for at least one intermediate length of time, and then to a curing temperature, for a curing time, effective to bond and seal the first electrode to the first interconnect, wherein the at least one intermediate temperature is less than the curing temperature.
摘要:
A solid oxide fuel cell system. The solid oxide fuel cell system may include a number of fuel cells placed under load in a fuel cell stack, a number of manifold slices placed under load in a manifold column, and a number of compliant feed tubes connecting the fuel cells and the manifold slices.
摘要:
A solid oxide fuel cell comprises an anode, a cathode opposite to the anode, and an electrolyte between the anode and cathode. The electrolyte includes a barrier layer that prevents chemical interactions between the electrolyte and the anode, in addition to preventing elemental losses from the electrolyte. The electrolyte further includes a strengthening layer having alternating layer elements that provide fracture resistance to the electrolyte.
摘要:
A solid oxide electrochemical device having a laminar composite electrode with improved electrochemical and mechanical performance, the laminar composite electrode comprising a porous support electrode layer, a thin and patterned structure layer, and a thin and dense electrolyte layer and methods for making.
摘要:
An electrode with improved resistance to Cr poisoning comprising AxB3-xO4, wherein A is selected from the group consisting of Mn, Co, Fe, Cr, Cu, V, and Ni and B is selected from the group consisting of Mn, Co, Fe, Cr, Cu, V, and Ni and a solid oxide electrochemical device comprising the same. A method for making a solid oxide electrochemical device comprising the above-described electrode.
摘要:
The fuel cell interconnect units may include a fuel compartment, an air compartment adjacent to the fuel compartment, a plurality of fuel flow fields that are in communication with the fuel compartment and have a fuel outlet, and a plurality of air flow fields that are in communication with the air compartment and have an air outlet.
摘要:
A catalyzed interconnect for an SOFC electrically connects an anode and an anodic current collector and comprises a metallic substrate, which provides space between the anode and anodic current collector for fuel gas flow over at least a portion of the anode, and a catalytic coating on the metallic substrate comprising a catalyst for catalyzing hydrocarbon fuel in the fuel gas to hydrogen rich reformate. An SOFC including the catalyzed anodic inter-connect, a method for operating an SOFC, and a method for making a catalyzed anodic interconnect are also disclosed.
摘要:
A solid oxide electrochemical device having a laminar composite electrode with improved electrochemical and mechanical performance, the laminar composite electrode comprising a porous support electrode layer, a thin and patterned structure layer, and a thin and dense electrolyte layer and methods for making.
摘要:
A fuel cell composite sealing structure for a fuel cell stack/module that includes a cell that comprises having a cathode and an anode sandwiching a solid electrolyte, a cathode-side interconnect adjacent the cathode (or electrolyte) and an anode-side interconnect adjacent the anode (or electrolyte), the composite sealing structure comprising a pair of composite sealant structures extending about the respective peripheries of the cathode-side and anode-side interconnects, each composite sealant structure comprising a sealing portion interposed between marginal edges of the cathode-side interconnect and the cathode (or electrolyte), and the anode-side interconnect and the anode (or electrolyte), respectively, and an adjacent sealant reservoir portion located outside the respective peripheries for supplying additional sealant to the sealing portion.