Synthesis and Testing of Zeolite from IndustrialWaste Coal Fly Ash as Sorbent For Water Adsorption from Ethanol Solution

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Panitchakarn, P.;Klamrassamee, P.;Laosiripojana, N.;Viriya-empikul, N.;Pavasant, P.

ปีที่เผยแพร่ (ค.ศ.): 2014

วารสาร: Engineering Journal (0125-8281)

Volume number: 18

Issue number: 1

หน้าแรก: 1

หน้าสุดท้าย: 12

นอก: 0125-8281

บทคัดย่อ

In the present work, zeolite was prepared from industrial-waste coal fired ash (CFA) by fusion technique with and without acid-washing pretreatment under various conditions. The synthesized materials were then tested for water adsorption from bioethanol solution with an aim to produce a high purity ethanol (>99.5%) for later utilization in gasohol production manufacturing. From our studies, it was found that the impurities (i.e., Fe2O3, TiO2, MgO, CaO, K2O and SO3) in CFA could be efficiently removed by acid-washing pretreatment. Among three different acids studied (i.e. HCl, HNO3, and H2SO4), HCl exhibited the highest pretreatment performance, while the most suitable pretreatment conditions to enhance high purity raw material (up to 85% purity) were by using 20%HCl with the acid to CFA ratio of 25 mlHCl

คำสำคัญ

Zeolite, coal fly ash, fusion, water adsorption, bioethanol