Farid Benyahia

Industrial case studies in the petrochemical and gas industry in Qatar for the utilization of industrial waste heat for the production of fresh water by membrane desalination

An investigation into the potential of using industrial low-grade waste heat in desalination using membrane distillation (MD) has been carried out. This investigation highlighted the need to work o...

Reduction Of The Carbon Footprint In Ammonia Production Through Petrochemical Plant Integration In Qatar

The gas industry in Qatar is experiencing a massive growth and its energy consumption leads to significant carbon emissions specifically Carbon Dioxide (CO2). All plant operators have been required to report carbon emissions to local authorities according to international standards. However, it is not clear how carbon will be managed in the future. In this work, a potentially attractive solution for carbon management will be put forward. This work involves a case study on Ammonia production facility and the carbon footprint of the Ammonia process. The sources of CO2 investigated were from the Ammonia process itself and its main support utilities (combustion in gas turbines, steam boilers and natural gas reformers). Refering to previous work done (on Ammonia process simulation using industry standard HYSYS and process calculation using a spreadsheet), an attempt was made to recover CO2 from the process to be utilize in Urea and Methanol manufacturing. This approach was based on the concept of plant integration where Ethylene, Ammonia, Urea, and Methanol production facilities would have a certain degree of mass integration. The work highlighted the importance of the Hydrogen balance from the Ethylene facility and the extent of CO2 recovery and capture from the Ammonia facility. The results indicated that it is possible to target around 45% of CO2 produced in Ammonia manufacturing and utilize it to produce high value products such as Urea and Methanol. It was found that when excess Hydrogen is utilizaed with part of CO2 produced from Ammonia manufacturing facility, excess Methanol that is equivalent to a half a train capacity can be produced (~1424 MTPD*). In addition to that it was found that utilizing another part of CO2 with Ammonia product - that is usually gets exported – almost one train of Urea can be produced (~3728 MTPD). The concept of plant integration was found very powerful and relevant in the context of carbon management since it is known that captured CO2 in Qatar and gulf area may not be stored underground in large quantities because the geology is mainly carbonate reservoirs. The work also indicated the need to purify both CO2 and hydrogen to qualities compatible with the applications indicated. A network of hydrogen and CO2 pipelines was also highlighted in the plant integration study. This plant integration of important petrochemical processes has shown that it is possible to reduce significantly carbon emission in Ammonia manufacturing. *MTPD: metric ton per day

Environmental Sustainability: Industry-Academia Perspective on Future Trends

Publisher Summary Environmental sustainability is becoming a serious challenge due to the global economic growth coupled with a massive surge in energy demand from new economic powers. The nature of the environmental challenge is extremely complicated since it is a composite of scientific misunderstanding, technological advances, public perceptions and political decisions. This unusual combination is not random since it is directly related to the intimate connection between strategic energy policies, public pressure for green house gas emission reduction and an aspiration for a better quality of life. The second annual gas processing symposium program included a discussion forum that brought academics and people from industry round a table to discuss timely and important topics linked directly or indirectly to environmental sustainability of gas processing operations. This chapter is an attempt to put in perspective future trends driven by joint efforts from academics and people from industry for environmental sustainability in the oil and gas industries.