کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
209199 | 461660 | 2016 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Efficient Fischer–Tropsch microreactor with innovative aluminizing pretreatment on stainless steel substrate for Co/Al2O3 catalyst coating Efficient Fischer–Tropsch microreactor with innovative aluminizing pretreatment on stainless steel substrate for Co/Al2O3 catalyst coating](/preview/png/209199.png)
• Novel aluminizing method was developed for Fischer–Tropsch microreactor.
• The Co/Re/W/Al2O3 catalyst on 316 L stainless steel showed a good activity.
• A high C5 + productivity was achieved.
• Catalyst coating thickness was also optimized.
In this paper, a novel aluminizing pretreatment method was developed to enable a strong adhesion of Al2O3 layers on the aluminum-free stainless steel substrate for the application of Fischer–Tropsch microreactor. The Co/Re/W/Al2O3 catalyst coated on a microreactor fabricated with 316 L stainless steel was tested for Fischer–Tropsch synthesis and showed a good activity. Ultrasonic vibration test results showed that the average weight loss of the coating on the aluminized substrate was only one-eighth of that on the untreated plate. A high C5 + productivity of 759.2 mg C5 +/gcat h was achieved at 220 °C and 20 atm under a gas hourly space velocity (GHSV) of 21,000 h− 1, and C5 + selectivity increased with decreasing CO conversion rate. Product distribution shifted toward short-chain hydrocarbons and hydrogenated products at high operation temperatures. Catalyst coating thickness was also optimized to inhibit CH4 production and adjust the olefin/paraffin ratio.
Journal: Fuel Processing Technology - Volume 143, March 2016, Pages 51–59