Elemental Mercury Removal from Natural Gas by Cupper Sulfide Supported Alumina as a Sorbent

سال انتشار: 1402
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 60

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شناسه ملی سند علمی:

JR_JPSTR-13-2_005

تاریخ نمایه سازی: 27 بهمن 1402

چکیده مقاله:

Feed streams of natural gas refineries and petrochemical industries contain mercury traces, threatening the environment and human health. Moreover, brazed aluminum heat exchangers are susceptible to being attacked by this component. The current research discusses the mercury removal capacities of alumina-based sorbents containing copper sulfide as an active metal. Cat-A and MRU-۴ are synthesized and characterized using XRD, BET, TEM, XRF, and LECO methods. The experiments were carried out by loading the sorbents in a fixed-bed reactor, and they were sulfided by using a nitrogen gas stream containing ۸ mol% of H۲S at the temperature of ۲۸۵oC. Then, their mercury removal capacities are measured at the temperature of ۶۰ oC, pressure of ۱ atm, and gas flow rate of ۲۲۰ cm۳/min versus time. Results showed that Cat-A and MRU-۴ sorbents reached their static adsorption capacities of ۱۲.۱ and ۱۹.۳ wt%, respectively. Moreover, mercury adsorption variations of sorbents against time indicate that MRU-۴ had faster dynamic adsorption than Cat-A sorbent. Ultimately, the characterization results also confirmed that the structures of MRU-۴ and Cat-A adsorbents were mesoporous and microporous, respectively.

نویسندگان

Ali Karimi

Catalysis Development Technologies Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran

Sepehr Sadighi

Catalysis Development Technologies Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran

Maryam Mashayekhi

Catalysis Development Technologies Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran

Amir Zarei

Research Institute for the Development of Chemistry, Polymer and Petrochemical Technolog,, Research Institute of Petroleum Industry (RIPI), Tehran, Iran

Masoumeh Ghalbi Ahangary

Research Institute for the Development of Chemistry, Polymer and Petrochemical Technolog,, Research Institute of Petroleum Industry (RIPI), Tehran, Iran

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