Gasification Reactions Clause Samples
The Gasification Reactions clause defines the processes and conditions under which gasification reactions are to be conducted within the scope of an agreement or project. It typically outlines the specific feedstocks, operational parameters, and expected outputs involved in converting solid or liquid materials into gaseous products, such as syngas, through controlled chemical reactions. By clearly specifying these technical details, the clause ensures that all parties have a mutual understanding of the gasification process requirements, thereby minimizing disputes and ensuring consistent performance standards.
Gasification Reactions. Oxygen and water and steam are essential reactants in the gasification process, and will be injected into the gasifier vessel at various levels. [ * ] CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO RULE 406 OF THE SECURITIES ACT OF 1933, AS AMENDED. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE OMITTED PORTIONS. Most of the oxygen will be introduced through the distributor grid located at the bottom of the gasifier to fluidize the [ * ] bed material. A portion of the oxygen is added at various heights in the gasifier in order to achieve the optimum temperature profile for the gasification and reforming reactions. Water will be injected with nozzles located on the side of the gasifier at different heights in the gasifier to moderate the temperature and adjust the temperature profile in the reactor. Tars formed as intermediates in the gasification process, will be condensed from the syngas in the gas treatment operation to form an emulsion with water condensate from the syngas. This emulsion will contain approximately [ * ]% water and [ * ]% tar/solids. The tar/water emulsion will be re-injected into the gasifier as a source of [ * ] for the gasification process. The reinjection adds reaction time for the tar to be converted to simpler gaseous products. The essential reactions in the gasification process are: · thermal decomposition of the organic material producing reactive intermediates, carbon (char) and primary gases — mainly CO2 and steam; · controlled cracking of the intermediates to yield low molecular weight volatile hydrocarbons, a fraction of the hydrocarbons will be converted to aldehydes and alcohols by partial oxidation; · steam reforming of the cracked intermediates will take place to yield low molecular weight hydrocarbons - mainly methane and ethylene, as well as H2, CO and CO2; · steam and carbon will react to yield H2 and CO; and · partial oxidation of intermediates and char occurs in the fluidized zone where the oxygen is introduced. These oxidation reactions generate the heat to sustain the gasifcation, The gasifier temperature and pressure will be controlled to produce the desired composition of syngas. The intermediate compounds formed in the partial oxidation and cracking reactions, will be reformed and further cracked in the freeboard section of the reactor. Some solids from the RDF will remai...