Simultaneous High-Temperature Removal of Alkali and Particulates in a Pressurized Gasification System. Annual Technical Progress Report, April 1981 Through March 1982

摘要

This program is directed at performing experimental and analytical investigations, deriving system designs, and estimating costs to ascertain the feasibility of using aluminosilicate-based getters for controlling alkali in pressurized gasification systems. Its overall objective is to develop a comprehensive plan for evaluating a scaled-up version of the gettering process as a unit operation or as an integral part of a particulate removal device. This report describes work completed on thermodynamic projections, getter selection and qualification, and system performance projections during the first year of the project. Work on the thermodynamic projections has been completed and includes an update of the data base, development of alkali phase diagrams, and projections for several gasification processes. Getter selection and qualification efforts involved 23 kinetic tests on our bench-scale reactor and 25 kinetic tests on our thermogravimetric analysis (TGA) system. A key series of tests on both units involved comprehensive getter screening tests in which 20 alternative getters were evaluated. System performance projections involved development of models using available kinetic data and subsequent projections of the size requirements for full-scale units. (ERA citation 08:000018)