15 results about "Tubular solid oxide fuel cell" patented technology

The invention relates to a circular tube type solid oxide fuel cell for methane dry reforming, and belongs to the technical field of solid oxide fuel cells. The cell is of a circular tube structure and is sequentially provided with a gas inlet inner cavity, an anode supporting body, a functional layer, an electrolyte layer, a cathode reaction layer, a gas outlet outer cavity and a shell from inside to outside in the direction perpendicular to the axial direction, and in an oxygen-free environment, methane and carbon dioxide mixed gas is introduced into the gas inlet inner cavity through a gas inlet; heating to enable the methane and carbon dioxide mixed gas to react on the functional layer to generate carbon monoxide and hydrogen ions, transmitting the hydrogen ions to the cathode reaction layer through the electrolyte layer, and reacting to generate hydrogen; in the reaction process, hydrogen and carbon monoxide production through methane dry reforming is realized, and electric energy is generated at the same time. A solid oxide fuel cell technology is combined with a methane dry reforming technology, so that electric energy can be generated on one hand, and hydrogen and carbon monoxide can be generated on the other hand.

The application discloses a porous tubular methanol solid oxide fuel cell with a closed end, which is a tubular solid oxide fuel cell (SOFC) cell stack, and a plurality of tubular SOFC single cells are contained in the tubular SOFC cell stack; the bottom end of the inner tube of the tubular SOFC single cell is open, the top end is closed, the inner tube wall is provided with a plurality of closed sections and a plurality of open sections, and the plurality of closed sections and the plurality of open sections are arranged alternately in sequence along the moving direction of fuel in the inner tube. The inner tube structure of the tubular SOFC single cell can effectively improve the uniformity of the distribution of methanol on the anode surface of the solid oxide fuel cell, thereby effectively overcoming the serious problem of carbon deposition caused by the uneven distribution of methanol on the anode surface of the solid oxide fuel cell.

This invention belongs to the field of catalyst technology, specifically relating to a multi-metal-doped cerium oxide catalyst and its preparation and application. The catalyst comprises a γ-Al₂O₃ support and an active component supported thereon, wherein the chemical formula of the active component is Ni. a Fe b Ru c Co d Ce1 a b c d O 2‑δ Wherein, 0.05≤a≤0.1, 0.04≤b≤0.06, 0.04≤c≤0.06, 0≤d≤0.06, and a+b+c+d≤0.2. The catalyst is prepared by solution impregnation, by preparing a metal salt solution and impregnating it on a γ-Al2O3 support to obtain a sol with a complexing agent, which is then aged, dried, and calcined in stages. The catalyst is used in the steam reforming reaction of aviation kerosene (n-dodecane simulation), and can achieve 100% catalytic conversion at 700 °C, without deactivation after 100 h of continuous operation, exhibiting low-temperature activity and anti-carbon deposition performance; wherein Ni 0.05 Fe 0.05 Ru 0.05 Co 0.05 Ce 0.8 O 2‑δ When reformed gas drives a tubular solid oxide fuel cell, the power density reaches 830.90 mW / cm³. 2 It operates stably for 100 hours without significant degradation. The process of this invention is simple and cost-controllable, and it is applicable to the fields of hydrogen production from aviation kerosene reforming and SOFC coupled power generation.

The invention provides a transverse air inlet tubular solid oxide fuel cell stack. The stack comprises a housing; a plurality of tubular solid oxide fuel cells; the air inlet assembly is arranged outside the first side of the shell and is provided with a plurality of rows of air inlet holes which are formed in the axial direction parallel to the battery tubes of the plurality of tubular solid oxide fuel cells, and the plurality of rows of air inlet holes are communicated with the interior of the shell and are used for transversely feeding air into the battery tubes of the functional areas of the plurality of tubular solid oxide fuel cells; the air outlet assembly is arranged outside the second side of the shell, the air outlet assembly is provided with a plurality of rows of air outlet holes formed in the direction parallel to the axial direction of the battery tube, and the multiple rows of air outlet holes communicate with the interior of the shell and are used for discharging air which flows through the battery tube in the shell and is subjected to heat exchange and cooling with the battery tube. A transverse air inlet mode is adopted, heat convection between air and the battery tube is enhanced, air obtained by each single battery is uniformly distributed, the axial temperature gradient of the battery tube is small, and the pressure drop is low.

The application relates to a tubular solid oxide fuel cell power generation device based on a parallel connection mode, which comprises a fuel reforming bin, a fuel distribution bin and multiple groups of solid oxide fuel cells; the fuel reforming bin is provided with a fuel gas inlet hole and a fuel gas outlet hole; the fuel gas inlet hole is communicated with a fuel supply device through a fuel gas inlet pipe; the fuel gas outlet hole is also communicated with the fuel distribution bin through the fuel gas inlet pipe; the multiple groups of solid oxide fuel cells are arranged in parallel; the anode of the solid oxide fuel cell is connected through an anode connecting body, and the cathode is connected through a cathode connecting body; the anode connecting body and the cathode connecting body are both mounted on the fuel distribution bin; the fuel distribution bin is provided with a fuel gas inlet and a fuel gas outlet; the fuel gas inlet and the fuel gas outlet are respectively communicated with the anode and the cathode. The tubular solid oxide fuel cell power generation device has the advantages of simple structure, high stability and strong portability.

The present teachings relate to methods and systems for manufacturing tubular ceramic green bodies convertible to tubular solid oxide fuel cells.

Described herein are new solid oxide fuel cell interconnects and methods for making same that may comprise a novel bilayer construct on an anode substrate to provide a dense microstructure, low area specific resistance, and negligible oxygen permeability to form a bilayer ceramic interconnect that is a strong candidate for next-generation, durable, and low-cost tubular solid oxide fuel cells.

A testing device for tubular solid oxide fuel cells (SOFC) includes a housing within which the tubular SOFC is mounted. The housing includes suitable inlets and outlets to allow a fuel gas, such as hydrogen, and an oxidant, such as air or oxygen, to interact with the anode and cathode of the tubular SOFC. In addition, the housing is formed of suitable material for placement in a heating device, such as a tubular furnace or a miniature tubular heater. A temperature sensor and computing device may monitor the temperature of the tubular SOFC in order to control the operation of the tubular heating device. In addition, the device provides electrical current collectors for coupling to the anode and cathode of the SOFC, which may be removable and reusable.

The invention relates to a preparation method of a tubular solid oxide fuel (SOFC) half cell, the tubular solid oxide fuel (SOFC) half cell is prepared through the processes of dipping, co-pressing and co-firing, and the preparation method is mainly characterized in that electrolyte membrane layers with different thicknesses are obtained on the inner wall of a quartz tube through different dipping times and slurry viscosities; pressing the anode powder on the inner wall of the quartz tube through isostatic cool pressing; and finally, realizing the forming preparation of the SOFC half cell through co-sintering. The production process of the tubular SOFC half-cell is simple, compared with a traditional method for preparing the tubular SOFC half-cell, the sintering frequency is reduced, the preparation period is shortened, the thicknesses of the electrolyte membrane layer and the anode supporting layer are controllable, and the situation that the working temperature of the cell is too high due to the fact that the electrolyte layer is too thick can be effectively prevented; the half-cell is regular in shape, can meet the performance requirement of an SOFC assembly, and has potential application value in the field of solid-state energy conversion devices.

Described herein are new solid oxide fuel cell interconnects and methods for making same that may comprise a novel bilayer construct on an anode substrate to provide a dense microstructure, low area specific resistance, and negligible oxygen permeability to form a bilayer ceramic interconnect that is a strong candidate for next-generation, durable, and low-cost tubular solid oxide fuel cells.

Provided in the present invention are a bamboo-joint tubular solid oxide fuel cell / electrolytic cell, a preparation method, and a battery / electrolytic cell stack and a preparation method. The bamboo-joint tubular solid oxide fuel cell / electrolytic cell comprises a ceramic support, a porous insulating layer on the surface of the ceramic support, and a cell assembly, wherein the cell assembly is formed by a first single cell and several other single cells distributed on the surface of the porous insulating layer in series in a fuel gas flowing direction; and a first insulating layer is provided between adjacent fuel electrodes in the cell assembly, a first connector and a second insulating layer are provided in sequence between adjacent electrolyte layers in a fuel flowing direction, and a third insulating layer is provided between adjacent air electrodes. The arrangement of the insulating layers can keep the single cells independent of one another, thereby improving the sealing performance of the single cells, and avoiding short circuits; and the first connector can longitudinally overlap with the fuel electrode and the air electrode of adjacent cell units, so as to vertically transmit the current from the fuel electrode of a cell unit to the air electrode of the adjacent cell unit by means of the connector, thus enabling the current between the cell units to be longitudinally transmitted by means of the connector, reducing the current transmission loss, and improving the battery performance.

The present teachings relate to modules and methods for making a tubular ceramic structure, which may be a tubular ceramic green body that can be transformed into a tubular solid oxide fuel cell.

The present invention relates to a method and system for producing tubular ceramic green bodies that can be converted into tubular solid oxide fuel cells.

The invention discloses a tubular solid oxide fuel cell power generation system. The system comprises a tubular solid oxide fuel cell stack, a pretreatment tube, a tail gas combustion part and a heat exchange system. The pretreatment pipe is arranged inside the cell stack, a transition layer (the firing temperature is 1000-1400 DEG C) and a catalyst layer (the firing temperature is 500-1100 DEG C, and active components are selected from at least two or more elements of Pt, Ru, Pd, Ni, Mo, Fe, Co and Cr) are arranged on a supporting pipe of the pretreatment pipe, and fuel reforming / partial oxidation and heat exchange can be carried out; a catalytic oxidation catalyst is arranged in the tail gas combustion part to realize complete combustion of tail gas; the heat exchange system adopts a multi-layer air flow channel design, so that tail gas waste heat fully preheats air. According to the system, through efficient thermal coupling of fuel treatment, electrochemical reaction, tail gas combustion and air preheating, system self-starting, uniform temperature control and energy recycling are achieved, and the power generation efficiency and the volume power density are greatly improved.

A ring-shaped solid oxide fuel cell assembly, for an aircraft engine, with a ring-shaped inner manifold, a ring-shaped outer manifold arranged coaxially around the inner manifold, wherein one of the manifolds comprises a hydrogen inlet and the other comprise a hydrogen outlet, a plurality of tubular solid oxide fuel cells arranged radially between the manifolds, wherein each fuel cell comprises an anode formed as an inner tube, an inner end fluidly connected to the inner manifold and an outer end fluidly connected to the outer manifold, a cathode formed as an outer porous tube around the anode, and, between, the anode and the cathode, an electrolyte. For each fuel cell, an inner electrical contact electrically connects at the inner end of that fuel cell to the anode or the cathode, and an outer electrical contact electrically connects at the outer end to the other.