Experimental program for the development of peat gasification. Monthly status report, February 1-February 28, 1981

Technical Report · Sun Mar 01 04:00:00 EST 1981

DOI:https://doi.org/10.2172/6511115· OSTI ID:6511115

In Task 1 (Single-Stage Fluidized-Bed Gasification Tests), one test was conducted with Minnesota peat in the process development unit (PDU), using steam and oxygen. The test was performed at a pressure of 268 psia, a fluidization velocity of 1.0 ft/s, and an average bed temperature of 1680/sup 0/F. The objective was to determine the effects of high feed moisture content (22-weight-percent moisture) and low gasification pressure on the gasification characteristics of peat. Most of the previous tests had been conducted at a nominal pressure of 500 psia. The test was successful; about 1 hour of steady-state operation was achieved before sintering began and the test was ended. The results of a test conducted previously with Minnesota peat containing about 8-weight-percent moisture were analyzed and are presented this month. The test was conducted at an average bed temperature of 1700/sup 0/F, a pressure of 522 psia, and a steam-to-carbon feed ratio of 1.1 mol/mol; it achieved a carbon conversion of about 84%. In Task 2 (Wet-Carbonization PDU-Scale Tests), orders were placed for long-lead-time equipment for the PDU. The design and specifications for the slurry heater/cooler system and the shell-and-tube heat exchangers have been finalized. The installation of the instrumentation and the control panel for the PDU is continuing. In Task 3 (Kinetic Data on Alaska and Florida Peats), efforts were made to obtain representative samples of peats from Alaska and Florida. A sample of Florida reed-sedge peat has been obtained and is being analyzed. Samples of Alaskan peat have been taken by the company conducting the US Department of Energy (DOE) peat resource assessment work; however, they have not yet been received. In Task 4 (Effect of Dewatering Methodology on Peat Gasification), efforts to obtain peat dewatered by various methods were continued.

• Research Organization: Institute of Gas Technology, Chicago, IL (USA)
• DOE Contract Number: AC01-76ET10283
• OSTI ID: 6511115
• Report Number(s): DOE/ET/10283-T3; FE-2469-69
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
CHEMICAL ANALYSIS
CHEMICAL REACTORS
CONTROL SYSTEMS
DESIGN
ELEMENTS
ENERGY SOURCES
FLUIDIZED BED
FOSSIL FUELS
FUELS
FUNCTIONAL MODELS
GASIFICATION
MEDIUM PRESSURE
NONMETALS
ORGANIC MATTER
OXYGEN
PEAT
PROCESS DEVELOPMENT UNITS
REMOVAL
SPECIFICATIONS
STEAM
THERMOCHEMICAL PROCESSES
WATER REMOVAL