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Title: Ecotoxicity of materials from integrated two-stage liquefaction and Exxon Donor Solvent processes

Abstract

Coal-derived materials from two coal conversion processes were screened for potential ecological toxicity. We examined the toxicity of materials from different engineering or process options to an aquatic invertebrate and also related potential hazard to relative concentration, composition, and stability of water soluble components. For materials tested from the Integrated Two-Stage Liquefaction (ITSL) process, only the LC finer (LCF) 650/sup 0/F distillate was highly soluble in water at 20/sup 0/C. The LCF feed and Total Liquid Product (TLP) were not in liquid state at 20/sup 0/C and were relatively insoluble in water. Relative hazard to daphnids from ITSL materials was as follows: LCF 650/sup 0/F distillate greater than or equal to LCF feed greater than or equal to TLP. For Exxon Donor Solvent (EDS) materials, process solvent produced in the bottoms recycle mode was more soluble in water than once-through process solvent and, hence, slightly more acutely toxic to daphnids. When compared to other coal liquids or petroleum products, the ITSL or EDS liquids were intermediate in toxicity; relative hazard ranged from 1/7 to 1/13 of the Solvent Refined Coal (SRC)-II distillable blend, but was several times greater than the relative hazard for No. 2 diesel fuel oil or Prudhoemore » Bay crude oil. Although compositonal differences in water-soluble fractions (WSF) were noted among materials, phenolics were the major compound class in all WSFs and probably the primary contributor to acute toxicity.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest Lab., Richland, WA (USA)
OSTI Identifier:
6037394
Report Number(s):
PNL-4675
ON: DE83012842
DOE Contract Number:
AC06-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; COAL LIQUIDS; TOXICITY; EXXON LIQUEFACTION PROCESS; ENVIRONMENTAL IMPACTS; TSL PROCESS; COAL LIQUEFACTION; DAPHNIA; ANIMALS; AQUATIC ORGANISMS; ARTHROPODS; BRANCHIOPODS; CRUSTACEANS; FLUIDS; INVERTEBRATES; LIQUEFACTION; LIQUIDS; THERMOCHEMICAL PROCESSES; 016000* - Coal, Lignite, & Peat- Health & Safety; 560304 - Chemicals Metabolism & Toxicology- Invertebrates- (-1987)

Citation Formats

Dauble, D.D., Scott, A.J., Lusty, E.W., Thomas, B.L., and Hanf, R.W. Jr.. Ecotoxicity of materials from integrated two-stage liquefaction and Exxon Donor Solvent processes. United States: N. p., 1983. Web. doi:10.2172/6037394.
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Dauble, D.D., Scott, A.J., Lusty, E.W., Thomas, B.L., & Hanf, R.W. Jr.. Ecotoxicity of materials from integrated two-stage liquefaction and Exxon Donor Solvent processes. United States. doi:10.2172/6037394.
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Dauble, D.D., Scott, A.J., Lusty, E.W., Thomas, B.L., and Hanf, R.W. Jr.. Sun . "Ecotoxicity of materials from integrated two-stage liquefaction and Exxon Donor Solvent processes". United States. doi:10.2172/6037394. https://www.osti.gov/servlets/purl/6037394.
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@article{osti_6037394,
title = {Ecotoxicity of materials from integrated two-stage liquefaction and Exxon Donor Solvent processes},
author = {Dauble, D.D. and Scott, A.J. and Lusty, E.W. and Thomas, B.L. and Hanf, R.W. Jr.},
abstractNote = {Coal-derived materials from two coal conversion processes were screened for potential ecological toxicity. We examined the toxicity of materials from different engineering or process options to an aquatic invertebrate and also related potential hazard to relative concentration, composition, and stability of water soluble components. For materials tested from the Integrated Two-Stage Liquefaction (ITSL) process, only the LC finer (LCF) 650/sup 0/F distillate was highly soluble in water at 20/sup 0/C. The LCF feed and Total Liquid Product (TLP) were not in liquid state at 20/sup 0/C and were relatively insoluble in water. Relative hazard to daphnids from ITSL materials was as follows: LCF 650/sup 0/F distillate greater than or equal to LCF feed greater than or equal to TLP. For Exxon Donor Solvent (EDS) materials, process solvent produced in the bottoms recycle mode was more soluble in water than once-through process solvent and, hence, slightly more acutely toxic to daphnids. When compared to other coal liquids or petroleum products, the ITSL or EDS liquids were intermediate in toxicity; relative hazard ranged from 1/7 to 1/13 of the Solvent Refined Coal (SRC)-II distillable blend, but was several times greater than the relative hazard for No. 2 diesel fuel oil or Prudhoe Bay crude oil. Although compositonal differences in water-soluble fractions (WSF) were noted among materials, phenolics were the major compound class in all WSFs and probably the primary contributor to acute toxicity.},
doi = {10.2172/6037394},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun May 01 00:00:00 EDT 1983},
month = {Sun May 01 00:00:00 EDT 1983}
}
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DOI:  10.2172/6037394
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