<http://webisa.webdatacommons.org/prov/89919609>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/6371113> .
<http://webisa.webdatacommons.org/6371113>	<http://www.w3.org/ns/prov#value>	"In one embodiment, the method further comprises adding a reducing agent such as urea or ammonia into the boiler 12 during combusting." .
<http://webisa.webdatacommons.org/6371113>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/6371113>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .