Open AccessUtilization of lightweight materials made from coal gasification slags. Quarterly report, March 1--May 31, 1996
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/465838
Subject(s) - slag (welding) , aggregate (composite) , kiln , char , waste management , environmental science , coal , integrated gasification combined cycle , materials science , process engineering , metallurgy , engineering , composite material , syngas , chemistry , hydrogen , organic chemistry
Integrated-gasification combined-cycle (IGCC) technology is an emerging technology that utilizes coal for power generation and production of chemical feedstocks. However, the process generates large amounts of solid waste, consisting of vitrified ash (slag) and some unconverted carbon. The major objectives of the subject project are to demonstrate the technical and economic viability of commercial production of lightweight aggregates (LWA) and ultra-lightweight (ULWA) from slag and to test the suitability of these aggregates for various applications. The project goals are to be accomplished in two phases: Phase 1, comprising the production of LWA and ULWA from slag at the large pilot-scale, and Phase 2, which involves commercial evaluation of these aggregates in a number of applications. The following significant events occurred during this reporting period: testing of slag-based lightweight aggregates for roof tile and concrete applications