Real-time coarse-particle mass measurements in a high-temperature/pressure coal-gasifier process treatment

Conference · Thu Jan 01 04:00:00 EST 1981

OSTI ID:6180564

Wegrzyn, J; Saunders, J; Marlow, W

A sampling system has been designed and is under construction at Brookhaven National Laboratory that employs a probe appropriate for direct extracted sampling of erosive range particulate matter from a coal gasifier outlet or a high pressure fluidized bed combustor. The sampling train is scheduled to be tested at the Morgantown Energy Technology Center on their 42 in. coal gasifier unit. This sampling system consists of four modules: (1) a null balance extractive probe with injection through a porous lined tube to minimize wall loss, (2) a stem type virtual impactor to separate coarse from fine particles, (3) a filter tape collector, and (4) a Beta gauge total mass detector. The key design feature of this system is a stem type virtual impactor which separates at ambient gas stream conditions the coarse particles from the sampling stream so that at filtration no condensible vapors, fine prticles or reactive gases pass through the filter tape. This system should provide coarse particle mass flux data with a time resolution of thirty seconds or better. Sampling requirements for high temperature, high pressure aerosols are defined and discussed according to sample integrity, artifacts of measurements, and validity of the signal. For a meaningful, unambiguous measurement, each of the above points must be addressed, and within this framework, this paper describes the direct sampling probe that is being developed.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6180564
• Report Number(s): BNL-29953; CONF-810261-1; ON: DE81030039
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
COAL GASIFICATION
COMBUSTION PRODUCTS
COMBUSTORS
EROSION
FLUIDIZED-BED COMBUSTORS
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GAS TURBINES
GASES
GASIFICATION
MACHINERY
PARTICLES
SAMPLING
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY