Tag Archives: NH3 Storage

Functionalized Ordered Mesoporous Silica Composites As Potential Ammonia Storage Materials

Zhu Ming*, Pan Xingxiang, Mei Hua, NJtech, Nanjing, China

15th Annual NH3 Fuel Conference, Pittsburgh, PA, October 31, 2018
NH3 Energy+ Topical Conference at the AIChE Annual Meeting


Ammonia may provide an alternative energy supplier for its strong capability as hydrogen carrier. However, it is a problem that how to storage this kind of chemical at relatively high temperature, for example 300°C in fuel cell. In this work, a composite material based on metal halides and ordered mesoporous silica framework is developed and used to target ammonia at relatively high temperature. The silica framework is fabricated via evaporation induced self-assembly method and has tunable mesoporous structure with addition of hexadecyl trimethyl ammonium bromide (CTAB). Several metal salts at various concentrations are added to the mesoporous framework via wetness impregnation method. It is reported that ammonia storage capability is further enhanced by functionalization with relative metal sites. Along with capacity measurements, the incorporation of metal salts on mesoporous silica is studied using microscopy, X-ray diffraction and porosity characterization techniques. Results show that well-dispersed metal crystal trapped in submicron-sized porous structure can improve diffusion rate and increase pore accessibility while maintaining structural integrity at relatively high temperature. Capacity measurements show that functionalized metal/silica composite can work as potential materials for ammonia storage. It is also a thermal stable material for only 3% weight loss over 300°C. Continue reading

Ammonia Fuel Safety

Trevor Brown
AmmoniaIndustry.com, United States

NH3 Fuel Conference, Minneapolis, November 1, 2017
AIChE Annual Meeting, Topical Conference: NH3 Energy+


This paper introduces the existing literature on the safety of using ammonia as a fuel, which provides comparative data for a range of traditional and alternative fuels and energy carriers. The studies reviewed conclude that risk levels associated with using ammonia as a fuel are “similar to those of gasoline,” or “similar, if not lower than for the other fuels,” also including hydrogen, methanol, LPG, and CNG. Ammonia as a fuel can meet all “acceptable” risk levels in even the most stringent regulatory jurisdictions. Continue reading

NH3: The Optimal Alternative Fuel

Norm Olson
NH3 Fuel Association, United States

NH3 Fuel Conference 2017, Minneapolis, November 1, 2017
AIChE Annual Meeting, Topical Conference: NH3 Energy+


Unlike some technology areas where “all of the above” has significant advantages, there are tremendous advantages associated with choosing a single, optimized, liquid transportation fuel. The cost, efficiency and environmental benefits associated with choosing an optimized liquid transportation fuel are enormous and merit serious consideration.

NH3 most closely meets the criteria for an ideal liquid transportation fuel. Continue reading

Ammonia Storage Materials Using Metal Halides and Borohydrides

Yoshitsugu Kojima
Institute for Advanced Materials Research, Hiroshima University, Japan

NH3 Fuel Conference, Los Angeles, September 20, 2016


Ammonia (NH3) is easily liquefied by compression at 1 MPa and 25 °C, and has a highest volumetric hydrogen density of 10.7 kg H2 /100L in hydrogen carriers. The volumetric hydrogen density is above 1.5 times of liquid hydrogen at 0.1 MPa and -253 °C. The vapor pressure of liquid NH3 is similar to propane. Moreover it has a high gravimetric hydrogen density of 17.8 mass%. NH3 is burnable substance and has a side as an energy carrier which is different from other hydrogen carriers. The heat of formation of NH3 is 30.6 kJ/molH2. The value is about 1/10 of heat of combustion for hydrogen. Continue reading

Piloting a Combined Heat and Power / Distributed Generation System, Powered by Carbon-Free, Renewable-Based Anhydrous Ammonia


The UCLA Sustainable Technology & Policy Program (UCLA-STPP) serves as the host of the 2016 NH3 Fuel Conference.

Peter Sinsheimer
Executive Director, UCLA-STPP, Los Angeles, CA

including NH3 Engine Overview
Eddie Sturman, Sturman Industries, USA

13th Annual NH3 Fuel Conference, September 20, 2016


UCLA-STPP is an interdisciplinary science / policy research unit, enjoining faculty in schools of engineering, public health, law, business, and medicine. The two-part mission of UCLA-STPP is to: (1) evaluate the viability of safer, cleaner, greener, more sustainable substitutes for existing hazardous services, processes, systems, and/or technologies, and (2) employ diffusion analysis to identify institutional, policy, and regulatory barriers to the adoption of viable safer substitutes and prescribe policy changes to overcome key barriers. UCLA-STPP has taken leadership in developing and institutionalizing “alternatives analysis” as policy/regulatory tool as a method to evaluate and identify safer, cleaner, greener, more sustainable substitutes.

UCLA-STPP is employing this alternatives analysis approach to evaluate the commercial viability of using renewable-based NH3 for peak power generation and natural gas for base load power in a camless engine genset system to be installed at a distributed generation pilot demonstration facility in the greater Los Angeles region. Continue reading

A Hazard Assessment of Ammonia as a Fuel

Understanding the Hazards and Managing the Risks / Threats of Ammonia as a Fuel

Gary Smith, President, Ammonia Safety and Training Institute (ASTI) / Tony Garcia, Hill Brothers Chemical Corp. / and John Mott, General Manager of Gordon Brothers
Tenth Annual NH3 Fuel Conference, September 23, 2013
Continue reading

A Green Ammonia Economy

Yoshitsugu Kojima
Institute for Advanced Materials Research, Hiroshima University
Tenth Annual NH3 Fuel Conference, September 23, 2013
Continue reading

Implementing an Ammonia Economy

A Feasibility Study

Final report, December 2008
Jeffrey R. Bartels and Michael B. Pate, PhD
Iowa Energy Center at Iowa State University Continue reading

Quest Consultants: NH3 fuel risk analysis


Quest Consultants, for Iowa State University, June 2009 Continue reading

Riso: Safety assessment of ammonia as a transport fuel

Risø National Laboratory, Roskilde, Denmark, February 2005 Continue reading