Biomass Gasification Hot Gas Filter Testing Results

Author(s):  
Benjamin C. Wiant ◽  
Dennis M. Bachovchin ◽  
Michael Onischak ◽  
Ronald H. Carty ◽  
Matthew Ratcliff

Westinghouse Electric Corporation, under contract to the US Department of Energy’s National Renewable Energy Laboratory, has been conducting hot gas cleanup system testing compatible with a pressurized fluidized bed gasifier and the operation of a gas turbine. The testing is in support of the US Department of Energy’s Binmass Power Program, and specifically, the Biomass Gasification Facility Demonstration in Paia, Hawaii. The hot gas cleanup testing was conducted at the Institute of Gas Technology’s research facilities in Chicago, Illinois, using the RENUGAS® 9.1 metric ton (10 ton) per day process development unit. The initial testing began in September 1994 and concluded February 1995. Based on the results of this testing, the hot gas cleanup system’s operation is being optimized for longer duration testing to be conducted at the Biomass Gasification Facility in Hawaii. Initial test results show that hot gas filtration of bagasse flyash/char, as well as tar and oils reduction, at gasifier operating conditions can be successfully accomplished. The results of these initial tests are summarized in this paper.

Author(s):  
Lin Lang ◽  
Hong-yu Zhu ◽  
Ying-na Ding ◽  
Xiu-li Yin ◽  
Chuang-zhi Wu ◽  
...  

Author(s):  
D. T. Entenmann ◽  
I. Fukue ◽  
W. E. North ◽  
A. Muyama

The 501F is a 150 MW-class 60 Hz engine jointly developed by Westinghouse Electric Corporation and Mitsubishi Heavy Industries, Ltd. This paper describes the full load shop test program for the prototype engine, as carried out in Takasago, Japan. The shop test included a full range of operating conditions, from startup through full load at the 1260°C (2300°F) design turbine inlet temperature. The engine was prepared with more than 1500 instrumentation points to monitor flow path characteristics, metal temperatures, displacements, pressures, cooling circuit characteristics, strains, sound pressure levels, and exhaust emissions. The results of this shop test indicate the new 501F engine design and development effort to be highly successful. The engine exceeds power and overall efficiency expectations, thus verifying the new concepts and design improvements.


Author(s):  
I. G. Wright ◽  
C. Leyens ◽  
B. A. Pint

Fuel gas produced by gasifying biomass feedstocks will be expected to meet the general specifications for corrosive and particulate impurities set by the gas turbine manufacturers before being approved for use. The extent to which impurities are present in the fuel gas will be a function of the process used to produce the gas, as well as the type of feedstock from which the gas is derived. Experiences from various biomass gasification trials and hot gas filtration testing to assess the types and amounts of impurities that are likely to be present in the delivered gas during normal operation of the gasification/hot gas cleanup process and upset conditions are reviewed. Overall, it appears that biomass fuels can be separated into two classes: those derived from grass-based biomass and those from wood. Of these, the grasses have the potential to be the more troublesome since they contain the largest amounts of alkalis and total solids and have a significant excess of chlorine over sulfur species. A possible mitigating factor is that it may be possible to lower the alkali metal species (Na + K) to levels considered acceptable by operating the filters at temperatures below 500°C. There is concern that larger amounts of particulate matter than allowed in current gas turbine fuel specifications may pass through the hot gas clean-up systems in biomass gasification processes. These particles may also carry condensed alkali deposits. Therefore, it is considered essential that detailed characterization of the size and type of these particles be obtained so that their potential to cause deposition, erosion, or corrosion problems can be better assessed.


1991 ◽  
Vol 113 (4) ◽  
pp. 488-494 ◽  
Author(s):  
D. T. Entenmann ◽  
W. E. North ◽  
I. Fukue ◽  
A. Muyama

The 501F is a 150 MW-class 60 Hz engine jointly developed by Westinghouse Electric Corporation and Mitsubishi Heavy Industries, Ltd. This paper describes the full-load shop test program for the prototype engine, as carried out in Takasago, Japan. The shop test included a full range of operating conditions, from startup through full load at the 1260°C (2300°F) design turbine inlet temperature. The engine was prepared with more than 1500 instrumentation points to monitor flow path characteristics, metal temperatures, displacements, pressures, cooling circuit characteristics, strains, sound pressure levels, and exhaust emissions. The results of this shop test indicate the new 501F engine design and development effort to be highly successful. The engine exceeds power and overall efficiency expectations, thus verifying the new concepts and design improvements.


Fuels ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 546-555
Author(s):  
Giovanna Ruoppolo ◽  
Gianluca Landi

The main drawback for the development of biomass gasification technology is tar conversion. Among the various methods for tar abatement, the use of catalysts has been proposed in the literature. Most of the works reported in the literature on catalytic systems for biomass tar conversion refers to catalysts in the form of powder; however, deactivation occurs by fast clogging with particulates deriving from biomass gasification. The integration of catalytic filter element for particle and tar removal directly integrated into the freeboard of the reactor is a new concept recently proposed and patented. In this context, this paper evaluates the possibility to integrate a structured iron-based catalytic monolith in the freeboard of a fluidized bed gasifier to enhance biomass gasification. The effectiveness of using a monolith for gas conditioning has been preliminarily verified. The limited effect on the gas production and composition seems to be related to the limited range of operating conditions explored in this work rather than to the low activity of the iron-based catalyst. Further studies to optimize the performance and to assess the possible deactivation of the catalyst due to coke deposition must be carried out.


Author(s):  
W. de Jong ◽  
J. Andries ◽  
K. R. G. Hein

In the framework of a multi-national European Joule project, experimental research and modeling concerning co-gasification of biomass and coal in a bubbling pressurized fluidized bed reactor is performed. The impact of fuel characteristics (biomass type, mixing ratio) and process conditions (pressure, temperature, gas residence time, air-fuel ratio and air-steam ratio) on the performance of the gasifier (carbon conversion, fuel gas composition, non-steady state behaviour) was studied experimentally and theoretically. Pelletized straw and miscanthus were used as biomass fuels. The process development unit has a maximum thermal capacity of 1.5 MW and was operated at pressures up to 10 bar and bed temperatures in the range of 650 °C–900 °C. The bed zone of the reactor is 2 m high with a diameter of 0.4 m and is followed by an adiabatic freeboard, approximately 4 m high with a diameter of 0.5 m. Time-averaged as well as time-dependent characteristics of the fuel gas were determined experimentally. The results will be compared with the gas turbine requirements provided by a gas turbine manufacturer, one of the partners in the project. The evaluation of the results will ultimately be used to implement and test an adequate control strategy for the pressurized fluidized bed gasifier integrated with a gas turbine combustion chamber.


Author(s):  
Benjamin C. Wiant ◽  
Dennis M. Bachovchin ◽  
Dennis A. Horazak ◽  
Michael Onischak ◽  
Ronald H. Carty ◽  
...  

In support of the U.S. Department of Energy’s Biomass Power Program, a Westinghouse Electric led team consisting of the Institute of Gas Technology, Gilbert/Commonwealth, and the Pacific International Center for High Technology Research, is conducting a 30-month research and development program to provide validation of hot gas cleanup technology with a pressurized fluidized bed, air-blown, biomass gasifier for operation of a combustion turbine. This paper discusses the gasification and hot gas cleanup processes, scope of work and approach, and the program’s status.


Alloy Digest ◽  
1963 ◽  
Vol 12 (9) ◽  

Abstract Westinghouse Alloy B66 is a columbium-base alloy exhibiting superior strength at temperatures in excess of 2000 F, yet retaining sufficient ductility for formability and weldability by conventional means. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on forming, heat treating, machining, and joining. Filing Code: Cb-5. Producer or source: Westinghouse Electric Corporation.


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