SELECTION OF INHERENTLTY SAFER PROCESS FOR PRODUCTION OF HYDROGEN USING SAFETY INDEXES

Abstract

Hydrogen is being considered very seriously as an alternative, renewable energy carrier for use in internal combustion engines or fuel cells. It is known that nearly all of our vehicles currently run on either gasoline or diesel fuel, which is dangerous with the point of view of nature protection. This situation requires that alternative energy carriers to be developed to promote future energy security. Hydrogen and natural gas have the potential to be a very attractive alternative energy carrier. These two gases are clean, efficient, and derived from diverse domestic resources, such as fossil fuel. Success in development of a new hydrogen technologies, such as fuel cells, transport systems on hydrogen, metal hydride based heat pumps has shown, that the use of hydrogen and natural gas results in qualitatively new solutions of ecological and power problems. However, despite some recent - advancement, selection of hydrogen production methodology is still a major concern. Many of these hydrogen production methodologies exists With hazardous operations and hazardous materials. -So; the selection of safe production methodology for hydrogen is also very important to decrease the unsafe conditions at production. Increased public concern about safety issues.and stringent environmental standards has led plant designers to consider inherently safer design. The term 'inherently safer' implies that the process is safe by its very nature and not externally constrained to' be safe by the use of add-on' systems and devices..Such opportunities for developing inherently safer process are highest in the early stages of design. Constraints such as time, lack of knowledge and inadequate inherent safety analysis tools are often cited as obstacles to development and implementation of inherently safer design. Here, described an inherent safety analysis methodology-that can be applied in the early stags of process development., The methodology is based on an inherent safety index for comparing process routes and heuristics for identifying hazards and generating alternative designs. Automation of the inherent safety analysis also makes it more thorough and detailed, minimizes or eliminates human errors, facilitates documentation and makes the study results available online for detailed safety 'analysis and review in the later stages of process design. The details of inherent safety analysis at the route selection stage are discussed in: this work and illustrated by comparing competing processes for Hydrogen production. In case of more number iii of production methodologies are exists, to overcome the difficult to calculate the all overall safety indexes a C++ PROGRAM developed and it gives the inherently safer process among them.