Incineration of xylene/sorbent packs. A study of conditions at the exit of a full-scale industrial incinerator

Rotary kiln incineration. Comparison and scaling of field-scale and pilot-scale contaminant evolution rates from sorbent beds

“…Over the past four years, we have been studying the incineration of pure hazardous waste surrogates at both field and pilot scales. The results of these investigations have been documented in a number of recent publications (1)(2)(3)(4)(5)(6). The program, which has been conducted in conjunction with personnel from the Louisiana Division of Dow Chemical USA (hereafter referred to as Dow), has focused on obtaining an understanding of those process parameters that impose first-order influence on the ultimate destruction levels attainable in rotary kilns.…”

“…Hydrocarbon evolution rates associated with the fieldscale study are inferred from measured gas component concentrations and temperature responses. While it would have been advantageous to take these measurements from , which corresponds to the length occupied by one pack when the kiln is fed at a rate of one pack per 10 min and solids residence time within the kiln is 1 h. 6 Estimated maximum bed thickness. ' (Grams of xylene)/(total grams of xylene and sorbent).…”

Evaluation of near-infrared tunable diode lasers for detection of transient emissions from a rotary kiln.

“…Also, for rotary kilns, unsteady exposure of solid or sorbent-bound unburned fuel during the kiln rotation cycle can produce transient, local mixtures depleted of oxygen. These fuel-rich mixtures consequently are convected through the incinerator and can produce significant transient emissions of unburned gaseous hydrocarbons, soot particulate, and CO (Lester et al, 1990;Cundy et al, 1991). The overall emission performance of hazardous waste incinerators is often limited by these transient events.…”

Visualization Studies of Three Dimensional Flow and Solid Motion in a Rotary Kiln

“…A number of laboratory-or pilot-scale studies have been performed to understand the operational characteristics, flue gas composition and destruction efficiency of batch-type rotary kiln incinerators [1][2][3][4][5][6]. Due to wide varieties of solid and liquid wastes in practice, simple material such as wood or cellulose was often used in the experimental studies [7][8][9], Measurements of Cundy et al [10,11] presented the temperature and concentration levels in a full-scale rotary kiln incinerator burning liquid carbon tetrachloride (CCU) with a methane/air flame; both with and without turbulent air.…”