Patents by Inventor Paolo Brunengo
Paolo Brunengo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240177076Abstract: A method of evaluating one or more aspects of a low carbon ammonia production facility uses a digital twin implemented on a computer system. The digital twin includes a low carbon energy source component and one or more of: a hydrogen source component, a nitrogen source component, and an ammonia synthesis loop component.Type: ApplicationFiled: November 17, 2023Publication date: May 30, 2024Applicant: KELLOGG BROWN & ROOT LLCInventors: Zhentao Feng, Satish Bantwal Baliga, Ekaterini Yamalidou, Paolo Brunengo, Rafal Bernat
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Publication number: 20240146058Abstract: Advanced control and related methods for a low carbon ammonia facility having an ammonia synthesis loop that includes systems to carry out the steps of supplying energy to the facility, wherein at least a portion of the supplied energy is from a low carbon energy source, receiving a forecasted energy profile for the low carbon energy source over a time period, predicting, using an advanced regulatory controller (ARC), the operating conditions of the facility based on the forecasted energy profile for the low carbon energy source, generating, by the ARC, one or more set points to control the facility; controlling the generating of the hydrogen feed using the ARC; and producing ammonia by feeding the generated hydrogen feed to the ammonia synthesis loop in accordance with one or more set points generated by the ARC.Type: ApplicationFiled: October 20, 2023Publication date: May 2, 2024Applicant: KELLOGG BROWN & ROOT LLCInventors: Zhentao Feng, Satish Bantwal Baliga, Ekaterini Yamalidou, Paolo Brunengo, Rafal Bernat, Shoujun Bian
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Publication number: 20230406699Abstract: A process of dissociating ammonia into a dissociated hydrogen/nitrogen stream in catalyst tubes within a radiant tube furnace and an adiabatic or isothermal unit containing catalyst, along with downstream purification process units to purify the dissociated hydrogen/nitrogen stream into high purity hydrogen product.Type: ApplicationFiled: June 16, 2023Publication date: December 21, 2023Applicant: KELLOGG BROWN & ROOT LLCInventors: Khoa Dang Nguyen, Umesh Jain, Paolo Brunengo, Elena Stylianou, Rohit Khurana
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Patent number: 9765041Abstract: In an integrated process for urea and melamine production, urea is produced in a urea plant (10) comprising a high pressure urea synthesis section (11) from which an aqueous solution comprising urea, ammonium carbamate and ammonia is obtained and a urea recovery section (21) operating at low pressure, and melamine is produced in a melamine plant (40) wherein off-gases resulting as by-products of the melamine synthesis are discharged from said plant at a medium pressure and recycled to the high-pressure urea synthesis section (11).Type: GrantFiled: March 15, 2016Date of Patent: September 19, 2017Assignee: Casale SAInventors: Federico Zardi, Paolo Sticchi, Paolo Brunengo
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Publication number: 20160194293Abstract: In an integrated process for urea and melamine production, urea is produced in a urea plant (10) comprising a high pressure urea synthesis section (11) from which an aqueous solution comprising urea, ammonium carbamate and ammonia is obtained and a urea recovery section (21) operating at low pressure, and melamine is produced in a melamine plant (40) wherein off-gases resulting as by-products of the melamine synthesis are discharged from said plant at a medium pressure and recycled to the high-pressure urea synthesis section (11).Type: ApplicationFiled: March 15, 2016Publication date: July 7, 2016Applicant: Casale SAInventors: Federico ZARDI, Paolo STICCHI, Paolo BRUNENGO
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Patent number: 7982068Abstract: A process for urea production from ammonia and carbon dioxide, in which part of the aqueous solution comprising urea, ammonium carbamate and ammonia obtained in a urea synthesis section is subjected to dissociation in a treatment section operating at a predetermined medium pressure for the recovery of the ammonium carbamate and of the ammonia contained in it, comprises the steps of subjecting the urea aqueous solution resulting from the aforementioned dissociation step to decomposition in a low pressure urea recovery section and of using at least a part of the condensed steam, obtained by indirect thermal exchange with a second part of said aqueous solution comprising urea, ammonium carbmate and ammonia in a high-pressure stripping unit, as a heating fluid for the dissociation of the first part of the aqueous solution comprising urea, ammonium carbmate and ammonia in the medium-pressure treatment section.Type: GrantFiled: October 9, 2007Date of Patent: July 19, 2011Assignee: Urea Casale S.A.Inventors: Federico Zardi, Paolo Brunengo, Paolo Sticchi
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Publication number: 20100063321Abstract: A process for urea production from ammonia and carbon dioxide, in which part of the aqueous solution comprising urea, ammonium carbamate and ammonia obtained in a urea synthesis section is subjected to dissociation in a treatment section operating at a predetermined medium pressure for the recovery of the ammonium carbamate and of the ammonia contained in it, comprises the steps of subjecting the urea aqueous solution resulting from the aforementioned dissociation step to decomposition in a low pressure urea recovery section and of using at least a part of the condensed steam, obtained by indirect thermal exchange with a second part of said aqueous solution comprising urea, ammonium carbmate and ammonia in a high-pressure stripping unit, as a heating fluid for the dissociation of the first part of the aqueous solution comprising urea, ammonium carbmate and ammonia in the medium-pressure treatment section.Type: ApplicationFiled: October 9, 2007Publication date: March 11, 2010Applicant: UREA CASALE S.A.Inventors: Federico Zardi, Paolo Brunengo, Paolo Sticchi
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Patent number: 7608735Abstract: A process for urea production from ammonia and carbon dioxide, in which part of the aqueous solution comprising urea, ammonium carbamate and ammonia obtained in a urea synthesis section is subjected to dissociation in a treatment section operating at a predetermined medium pressure for the recovery of the ammonium carbamate and of the ammonia contained in it, comprises the step of subjecting the urea aqueous solution resulting from the aforementioned dissociation step to decomposition in a low pressure urea recovery section.Type: GrantFiled: April 6, 2006Date of Patent: October 27, 2009Assignee: Urea Casale S.A.Inventors: Federico Zardi, Paolo Sticchi, Paolo Brunengo
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Patent number: 7566431Abstract: A method for the removal of nitrogen oxides contained in combustion flue gas through treatment with gaseous ammonia, in which the gaseous ammonia is generated in situ by hydrolysis reaction of an aqueous urea solution (L4) whereby the ammonia generated by the hydrolysis (L5) is accumulated in gaseous state, under pressure, in an accumulator (A5).Type: GrantFiled: September 7, 2004Date of Patent: July 28, 2009Assignee: Urea Casale S.A.Inventor: Paolo Brunengo
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Publication number: 20090124830Abstract: A process for urea production from ammonia and carbon dioxide, in which part of the aqueous solution comprising urea, ammonium carbamate and ammonia obtained in a urea synthesis section is subjected to dissociation in a treatment section operating at a predetermined medium pressure for the recovery of the ammonium carbamate and of the ammonia contained in it, comprises the step of subjecting the urea aqueous solution resulting from the aforementioned dissociation step to decomposition in a low pressure urea recovery section.Type: ApplicationFiled: April 6, 2006Publication date: May 14, 2009Applicant: Urea Casale S.A.Inventors: Federico Zardi, Paolo Sticchi, Paolo Brunengo
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Patent number: 7414130Abstract: In an integrated process for urea and melamine production, urea is produced in a urea plant (12) comprising a high pressure urea synthesis section (15) and a urea recovery section (16) for separating urea from a carbamate aqueous solution, and melamine is produced in a melamine plant (11) wherein off-gases resulting as byproducts of the melamine synthesis are discharged therefrom at a pressure of at least 2 bar and recycled to the high pressure urea synthesis section (15).Type: GrantFiled: July 13, 2007Date of Patent: August 19, 2008Assignee: Urea Casale S.A.Inventors: Paolo Brunengo, Federico Zardi
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Publication number: 20070282102Abstract: In an integrated process for urea and melamine production, urea is produced in a urea plant (12) comprising a high pressure urea synthesis section (15) and a urea recovery section (16) for separating urea from a carbamate aqueous solution, and melamine is produced in a melamine plant (11) wherein off-gases resulting as byproducts of the melamine synthesis are discharged therefrom at a pressure of at least 2 bar and recycled to the high pressure urea synthesis section (15).Type: ApplicationFiled: July 13, 2007Publication date: December 6, 2007Applicant: Urea Casale S.A.Inventors: Paolo Brunengo, Federico Zardi
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Publication number: 20070212287Abstract: A method for the removal of nitrogen oxides contained in combustion flue gas through treatment with gaseous ammonia, in which the gaseous ammonia is generated in situ by hydrolysis reaction of an aqueous urea solution (L4) whereby the ammonia generated by the) hydrolysis (L5) is accumulated in gaseous state, under pressure, in an accumulator (A5).Type: ApplicationFiled: September 7, 2004Publication date: September 13, 2007Applicant: Urea Casale S.A.Inventor: Paolo Brunengo
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Publication number: 20070032650Abstract: In an integrated process for urea and melamine production, urea is produced in a urea plant (12) comprising a high pressure urea synthesis section (15) and a urea recovery section (16) for separating urea from a carbamate aqueous solution, and melamine is produced in a melamine plant (11) wherein off-gases resulting as byproducts of the melamine synthesis are discharged therefrom at a pressure of at least 2 bar and recycled to the high pressure urea synthesis section (15).Type: ApplicationFiled: August 10, 2004Publication date: February 8, 2007Applicant: Urea Casale S.A.Inventors: Paolo Brunengo, Federico Zardi