Processing and gasification of construction and demolition materials

A method for gasifying construction and demolitions (C&D) materials, the method comprising:

• processing construction and demolition (C&D) materials to produce a C&D feed comprising chromated copper arsenate (CCA) wood, borate-treated materials, and/or resinated wood;
• and
• processing the C&D feed to produce a product gas, wherein processing the C&D feed comprises—
• gasifying the C&D feed, steam, and oxygen in a gasifier at a temperature of no more than 950° C. and/or a pressure of no more than 200 pounds per square inch (psi) to produce syngas at a gasifier head of the gasifier;
• filtering the syngas received from the gasifier to produce filtered syngas;
• and
• cooling the filtered syngas to produce a cooled syngas.