Specifications include, but are not limited to: • The City anticipates that from 3000 to 5000 tons of wet wood mulch per year will be initially available for processing. Please specify the capacity of the proposed equipment in your bid. • The City requires the flexibility to produce biochar products across a range of operating temperatures from 350°C to 1000°C. It is recognized that not all equipment is able to operate across this full range. Please specify the operating temperature range in your bid. • The biochar produced must be able to meet European Biochar (EBC) Labeling Guidelines. • We do not anticipate the need for a containerized system, however, please provide a description and cost for system containerization in your bid for consideration. • The process must be able to process the wood as received (see feedstock description in PROCESS DESCRIPTION above). If feedstock conditioning (size or moisture reduction), is required before pyrolysis, include all necessary equipment in the quotation. • The equipment must be able to operate unattended for periods of 8 hours or more. The control system must be able to diagnose malfunctions, adjust conditions as needed, or take the process through a safe, orderly shutdown. • The control system must be internet accessible and the system remotely operable. • The operator must be able to set the pyrolysis temperature across the range from 350C up to the operating limit of the unit. • The process may use an auxiliary fuel such as diesel fuel or propane (please specify what type of auxiliary fuel in your bid) for startup but may not use a fossil fuel continuously during operation. • Beyond startup, the process must use wood or pyrolysis gases as fuel to sustain the pyrolysis. • The system must inert the biochar after pyrolysis and prevent autoignition in storage. • The system must be able to collect and store biochar for a minimum of 8 hours. • Vendor proposal cost must include all maintenance manuals in PDF format, control schematics, and other drawings or data necessary to operate and maintain the system.
