Activated-Carbon Production from Creosote-Treated Waste Wood

EPA Contract Number: 68D50086
Title: Activated-Carbon Production from Creosote-Treated Waste Wood
Investigators: Ben-Reuven, Moshe
Small Business: Research Inc.
EPA Contact: Manager, SBIR Program
Phase: I
Project Period: September 1, 1995 through March 1, 1996
Project Amount: $64,931
RFA: Small Business Innovation Research (SBIR) - Phase I (1996) RFA Text |  Recipients Lists
Research Category: Hazardous Waste/Remediation , SBIR - Waste , Small Business Innovation Research (SBIR)

Description:

A method is proposed to convert creosote-treated waste wood into high-grade granular activated carbon, with surface area of 900-1800 m2/gram. Creosote, widely used to protect wood, is a hazardous substance, ID# NA9189. Creosote treated waste wood consists of utility poles, pier posts, and railroad ties. In New Jersey about 50,000 ton/year are collected, while over the entire USA, an estimated 1.5 M tons/year are collected. There is no current solution for neutralization or utilization of this hazardous waste. Controlled temperature and heating rates (both relatively low ) are used in a fluid-bed pyrolysis unit. The pyrolysis process endeavors to maximize the car-producing and tar-to-car producing chemical routes, as well as creosote-to-char within the solid particle matrix. A gas combustor is coupled with the pyrolysis unit, using the off gas generated by the retort. The combustion product gas, with reduced temperature, serves to fluidize the retort. Overall low temperatures ensure low NOx emissions. The process is energetically self-sufficient. The objective of Phase I work is to demonstrate feasibility in a small 10 kg/hr laboratory scale unit.

Supplemental Keywords:

small business, SBIR, engineering, chemistry., RFA, Scientific Discipline, Waste, Environmental Chemistry, Analytical Chemistry, Hazardous Waste, Chemistry and Materials Science, Hazardous, Environmental Engineering, hazardous substance disposal, hazardous waste disposal, hazardous waste treatment, pier posts, railroad ties, advanced treatment technologies, granular activated carbon, activated carbon, fluidized bed pyrolysis unit, gas combustion, utility poles, waste wood, carbon production, creosote-treated waste wood, creosote

Progress and Final Reports:

  • Final