Wuhan Institute of Technology

www.wit.edu.cn
Wuhan, China

Wuhan Institute of Technology is a university in China. It is regarded as one of the best universities in HuBei,and it is very famous for its subordinate schools School of Chemical Engineering and Pharmacy, School of Environment and Civil Engineering.It has great influence on China'chemical engineering field. Wikipedia.


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A method for gasifying biomass using a gasifier, the gasifier including a furnace body and a fuel pretreatment system. The method includes 1) crushing and sieving a biomass fuel to yield particle size-qualified fuel particles, 2) exciting working gas to yield plasma, and spraying the plasma into the gasifier, 3) spraying the particle size-qualified fuel particles into the gasifier via nozzles, synchronously spraying an oxidizer via an oxygen/vapor inlet into the gasifier, and 4) monitoring the temperature and components of the syngas, regulating an oxygen flow rate, a vapor flow rate, and microwave power to maintain the process parameters within a preset range and to control a temperature of the syngas to be between 900 and 1200 C., collecting the syngas from the syngas outlet at the top of the furnace body, and discharging liquid slag from the slag outlet.


A catalyst including cobalt, a carrier including silica, and a selective promoter including zirconium. The cobalt and the selective promoter are disposed on the surface of the carrier, and the outer surfaces of the active component cobalt and the selective promoter zirconium are coated with a shell layer including a mesoporous material. A method for preparing the catalyst, including: 1) soaking the carrier including silica into an aqueous solution including a zirconium salt, aging, drying, and calcining a resulting mixture to yield a zirconium-loaded carrier including silica; 2) soaking the zirconium-loaded carrier including silica into an aqueous solution including a cobalt salt, aging, drying, calcining a resulting mixture to yield a primary cobalt-based catalyst; 3) preparing a precursor solution of a mesoporous material; and 4) soaking the primary cobalt-based catalyst into the precursor solution of the mesoporous material; and crystalizing, washing, drying, and calcining a resulting mixture.


A catalyst including between 50.0 and 99.8 percent by weight of iron, between 0 and 5.0 percent by weight of a first additive, between 0 and 10 percent by weight of a second additive, and a carrier. The first additive is ruthenium, platinum, copper, cobalt, zinc, or a metal oxide thereof. The second additive is lanthanum oxide, cerium oxide, magnesium oxide, aluminum oxide, silicon dioxide, potassium oxide, manganese oxide, or zirconium oxide.


A catalyst for preparing aviation fuel from synthetic oil obtained by Fischer-Tropsch process, including: between 20 and 50 percent by weight of an amorphous aluminum silicate, between 5 and 20 percent by weight of alumina, between 20 and 60 percent by weight of a hydrothermally modified zeolite, between 0.5 and 1.0 percent by weight of a Sesbania powder, between 0.5 and 5 percent by weight of nickel oxide, and between 5 and 15 percent by weight of molybdenum oxide. The invention also provides a method for preparing the catalyst.


Patent
Wuhan Institute of Technology | Date: 2016-10-11

A hybrid power generation system using solar energy and bioenergy, including a solar thermal boiler system, a biomass boiler system, and a turbogenerator system. The solar thermal boiler system includes a trough solar collector, a heat collector, an oil circulating pump, a storage tank for storing heat transfer oil, a solar thermal heater, a solar thermal evaporator, a main pipe transporting saturated steam, and an auxiliary boiler. Heat transfer oil output from a solar light field of the solar thermal boiler system is transmitted through and transfers heat to the solar thermal evaporator and the solar thermal heater, and the heat transfer oil returns to the storage tank for storing heat transfer oil. The heat transfer oil in the storage tank is pumped to the solar light field via the oil circulating pump.


Disclosed are a catalyst suitable for production of aviation kerosene from biomass Fischer-Tropsch synthesis oil and a preparation method therefor. Various components by weight in percentage in the catalyst are: 20-50% of an amorphous aluminum-silicon, 5-20% of an aluminum oxide binder, 20-60% of a hydrothermally modified ZSM-22 molecular sieve, 0.5-5% of nickel oxide, and 5-15% of molybdenum oxide. The preparation method is as follows: firstly performing an NH4 + exchange treatment on the K-ZSM-22 molecular sieve to obtain an H-ZSM-22 molecular sieve, then performing a hydrothermal treatment to obtain a modified H-ZSM-22 molecular sieve, and then after uniform mixing with the amorphous aluminum-silicon, adding the aluminum oxide binder and a sesbania powder, mixing and kneading same, grinding into clusters, forming same by band extrusion, then drying and calcinating same, and finally loading active metals Ni and Mo. The catalyst obtained from the present invention has a high activity and a high selectivity, increases the isomerization degree of long-chain alkanes, reduces the freezing points of the fractions of aviation kerosene, and improves the yield of the aviation kerosene.


A structured iron-based catalyst for producing an -olefin from a synthesis gas and a preparation method and use. The catalyst comprises an active component iron, auxiliary agents and a carrier, wherein the auxiliary agents comprise a first auxiliary agent which is a transition metal or a transition metal oxide and a second auxiliary agent which is a metal oxide. The content of the active component iron is 50.0%-99.8%, the content of the first auxiliary agent is 0-5.0%, the content of the second auxiliary agent is 0-10% and the balance is the carrier which is silicon dioxide. A precursor of the active component iron, a precursor of the first auxiliary agent and the carrier silicon dioxide are made into mono-dispersed particles using a heat dispersing method, and then impregnated with a solution of a precursor of the second auxiliary agent to obtain the structured iron-based catalyst. The above-mentioned structured iron-based catalyst is used for producing an -olefin from a synthesis gas. Since the mono-dispersed structured iron-based catalyst can generate an active centre suitable for the generation of the -olefin, it thus has good selectivity.


Patent
Wuhan Institute of Technology | Date: 2017-02-15

A solar thermal and BIGCC-integrated hybrid power generation system comprising a solar energy concentrating collector system (9), biomass gasification equipment (1), a gas-fired electric generator (7), a steam turbine (13), and a steam electric generator (14). The solar energy concentrating collector system (9) is connected to a solar energy heat exchange system (11). The biomass gasification equipment (1) is connected to the gas-fired electric generator (7) via a gas compressor (3), a combustion chamber (5), and a gas turbine (6). An output of the gas turbine (6) is simultaneously connected to a gas residual heat system (8). A low-pressure steam output of the gas residual system (8) is connected to a medium/low-pressure cylinder of the steam turbine (13). A high-pressure steam output of the gas residual system (8) and high-pressure steam produced by the solar energy heat exchange system (11) are both connected to a steam mixture regulating system (12). An output of the steam mixture regulating system (12) is connected to a high-pressure cylinder of the steam turbine (13). By means of the steam mixture regulating system, mixture of steams of different temperatures is implemented, and the temperature of the mixed steam is regulated and controlled, thus satisfying steam requirements of a variable parameter steam turbine.


Patent
Wuhan Institute of Technology | Date: 2017-02-15

An optimized integrated system for solar-biomass hybrid electricity generation. A heat transfer oil outputted from a solar farm (1 and 2) of a solar thermal boiler system flows sequentially through a solar thermal evaporator (6) and a solar thermal heater (5) then back to a heat transfer oil storage tank (4) and is then delivered via a circulation oil pump (3) to the solar farm to complete a heat transfer oil circulation. Solar thermal steam produced by the solar thermal evaporator is delivered to a biomass boiler system (9) via a steam header (7). Auxiliary steam produced by a coal-fired or gas-fired or oil-fired auxiliary boiler (8) also is mixed with the solar thermal steam and delivered to the biomass boiler system via the steam header. The solar thermal mixed steam and steam produced by a biomass boiler itself are delivered to a turbo generator (10) to drive an electric generator (11) into generating electricity. The system simplifies solar thermal power generation system and equipment configurations, provides stable electricity generation, high thermal efficiency, and extended service life.


A cobalt-based Fischer-Tropsch synthesis catalyst coated with mesoporous materials and preparation method therefor are disclosed. The catalyst comprises a silica carrier surface-loaded with an active component of cobalt and a selective promoter of zirconium; the outside of the active component of cobalt and the selective promoter of zirconium is coated with a mesoporous material shell layer. The preparation method comprises preparing silica carrier loaded with zirconium, preparing an initial cobalt-based Fischer-Tropsch synthesis catalyst on the silica carrier base, formulating a precursor solution of mesoporous materials, then dipping, crystallizing, washing, drying and calcining to obtain the cobalt-based Fischer-Tropsch synthesis catalyst coated with mesoporous materials. The active component is coated and protected by the mesoporous material shell layer, the thickness of the shell layer is controllable, the catalyst has long service life, high reactivity and good stability. The pore structure of mesoporous materials provides a channel for diffusing CO and H2, the selectivity of C5 + is high and the selectivity of methane is low. The catalyst is specially applicable to slurry bubble column reactors or continuously stirred tank reactors.

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