PROCESS ECONOMICS PROGRAM - Markit PDF filePROCESS ECONOMICS PROGRAM Abstract Process Economics Program Report No. 182 AROMATIC PROCESSES SRI INTERNATIONAL Menlo Park, California 94025 (June 1987) This report addresses aromatics production from petroleum sources. Catalytic reformate and pyrolysis gasoline are thus the two main feed- stocks. (PDF) Xylenes: Production technologies and uses Xylene, an aromatic hydrocarbon is the most routinely used clearing agent during tissue processing but it is considered to be hazardous. The ill effects of xylene have been discussed long ago and Capturing Opportunities Para-Xylene Production PDF filean overbuilt market by the late 1990s. By 2001, worldwide para-xylene production capacity exceeded the demand by more than 4.5 million metric tons per annum (MMTA), lowering the average capacity utilization to less than 80%. Figure 1 shows the world supply/demand balance for para-xylene and capacity utilization from 1999 through the 2010 forecast.