Methods and apparatus for residual material management

摘要

Residual impurity reduction methods and apparatus are provided. A method comprises conducting a gaseous stream through an unlined portion of a pipe, wherein the gaseous stream comprises sodium and wherein the unlined portion of the pipe is at least about eighteen inches long, injecting a neutralizing agent into the gaseous stream at an injection point, wherein the injection point is located at a point where the sodium is in at least a partially condensed state. The gaseous stream is conducted through a heated portion of a pipe and a cooled portion of a pipe. In addition, methods and apparatus may include a trap system for use with a carbonization furnace.

主权项

1. A residual impurity management method comprising:
directing a gaseous stream through an unlined portion of a pipe under at least one of a vacuum and a partial vacuum, wherein the gaseous stream comprises gaseous sodium, wherein the gaseous stream is at a temperature between 1400° C. and 2200° C.; allowing the gaseous stream to cool to between 900° C. and below 1400° C.; injecting a neutralizing agent into the gaseous stream at an injection point, wherein the injection point is located at a point where a portion of the sodium is not in gaseous form and wherein the gaseous stream is at a temperature of between 900° C. and below 1400° C.; conducting the gaseous stream through a heated portion of the pipe; and conducting the gaseous stream through a cooled portion of the pipe.