Khảo sát khả năng hấp thụ nước trong quá trình lưu trữ và hiệu ứng của triethylamine (TEA) n-hexanol trong việc hạn chế sự tách pha của nhiên liệu sinh học E5 và E10 = Investigation of water absorption during the storage and effects of triethylamine (TEA) n-hexanol in reducing phase separation of E5 and E10 biofuels

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả:

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Phát triển Khoa học & Công nghệ: Khoa học Tự nhiên, 2018

Mô tả vật lý: tr.88

Bộ sưu tập: NCBI

ID: 631486

Thêm vào giỏ

In this study, water absorption of E5 and E10 were investigated under Ho Chi Minh City’s weather conditions. The effects of triethylamine (TEA) and n-hexanol on E5 and E10 phase separation were also reported. Data from this study implied that E5 and E10 biofuels were effectively stable for 90 days under Vietnam standard biofuels storage condition with no phase separation observed. The presence of TEA in these two biofuels showed the reduction of water absorption capacity of E5 and E10 during storage. Specifically, 0,15% (v/v) of TEA in E5 and E10 resulted approximately 50% reduction of water absorption capacity compared to E5 and E10 without TEA additives. Addition of 0,15% (v/v) of TEA and 1,5% (v/v) of n-hexanol in E10 resulted a higher water content of 11% for phase separation to occur, which was relatively higher than the current E10 under the same condition. Data conducted in this study suggested a positive and synergetic effect of TEA and n-hexanol on the stability of E5 and E10 under standard storage condition. This study proposed potential additives that could be used for improving Vietnam's biofuels standard. Trong nghiên cứu này, nhóm tác giả tiến hành thử nghiệm, khảo sát khả năng hấp thu nước của 02 loại nhiên liệu E5, E10 trong điều kiện môi trường tại khu vực thành phố Hồ Chí Minh, đồng thời khảo sát hiệu ứng của 02 loại phụ gia chọn lựa triethyamine (TEA) và n-hexanol đến hiện tượng tách pha của E5, E10. Kết quả nghiên cứu cho thấy, 02 loại nhiên liệu E5, E10 trong điều kiện lưu trữ đều có hiện tượng hấp thu nước, nhưng hoàn toàn ổn định trong thời gian lưu trữ là 90 ngày, không có hiện tượng tách pha. Sự có mặt của TEA và n-hexanol trong E5, E10 hạn chế tốt khả năng hấp thu nước của E5, E10. Sự có mặt của 02 phụ gia trong E5, E10 với hàm lượng phù hợp cho phép giảm gần 50% hàm lượng nước bị hấp thu nước so với E5, E10 không có pha phụ gia trong cùng điều kiện. Đồng thời, sự có mặt của 02 phụ gia này cho phép cải thiện điểm vẩn đục (điểm xuất hiện hiện tượng tác pha) của 02 loại nhiên liệu E5, E10, cụ thể so với trường hợp không có phụ gia, sự có mặt phu gia TEA và n-hexanol trong E5, E10 với hàm lượng tương ứng 0,15%(v) và 1,5%(v) cho phép tăng hàm lượng nước tương ứng với điểm vẫn đục đến gần 11,5%.

Tạo bộ sưu tập với mã QR