THIẾT KẾ, CHẾ TẠO VÀ KHẢO NGHIỆM THIẾT BỊ LỌC VÀ LÀM MÁT KHÍ CỦA HỆ THỐNG HÓA KHÍ TRẤU

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Tác giả: Huy Bích Nguyễn, Nam Quyền Nguyễn

Ngôn ngữ: vie

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Thông tin xuất bản: Tạp chí Khoa học & Công nghệ - Trường Đại học Công nghiệp Hà Nội, 2023

Mô tả vật lý: tr.86

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ID: 341431

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Sử dụng nguồn năng lượng tái tạo thay thế cho nguồn năng lượng hóa thạch là hướng giải quyết cơ bản cho việc thiếu hụt năng lượng, ô nhiễm môi trường và giảm thiểu tác động của hiệu ứng nhà kính. Nguồn năng lượng sinh khối khá lớn tại Viêt Nam là tiềm năng cần được khai thác sử dụng trong đó dùng phương pháp hóa khí sinh khối để cung cấp khí cho công nghiệp và đời sống cần được quan tâm nghiên cứu phát triển. Tuy nhiên, sản phẩm khí thu được từ hóa khí sinh khối (khí thô) còn lẫn rất nhiều tạp chất như nhựa (tar), alkali kim loại, HCl, nitrogen và HCN, H2S và COS.... Do đó, việc hóa khí sinh khối đòi hỏi phải làm sạch và làm mát khí sau khi hóa khí bằng công nghệ và thiết bị phù hợp. Hai phương pháp làm mát và làm sạch khí hóa với các thiết bị tương ứng gồm thiết bịdùng ống venturi và thiết bị lọc xyclone kết hợp làm mát kiểu đối lưu tuần hoàn cưỡng bức đã được nghiên cứu thiết kế, chế tạo thiết bị, và khảo nghiệm thành công. Kết quả chỉ ra rằng phương pháp lọc xyclone kết hợp làm mát kiểu đối lưu tuần hoàn cưỡng bức có nhiều ưu điểm và giải quyết được cơ bản yêu cầu của việc làm mát khí đạt được nhiệt độ thấp dưới 500C trước khi sử dụng cho bảo quản.Using renewable energy sources to replace fossil energy sources is one of the best solutions to solve energy shortages, environmental pollution and minimizing the impact of the greenhouse effect. The high potential biomass energy source in Vietnam is an one needs to be exploited and applied, in which biomass gasification methods to supply gas for industry and life needs to be studied and developed. However, the gas product obtained from biomass gasification (raw gas) contains many impurities such as tar, alkali metal, HCl, nitrogen and HCN, H2S and COS.... Therefore, the raw gas requires to be cleaned and cooled before they might be used by using suitable technology and equipment. Two approaches of raw gas cooling and cleaning are venturi tube device and cyclolone filter device combined with forced circulation convection cooling have been developed, manufactured, and tested successfully. The results indicate that the cyclolone filter device combined with forced circulation convection cooling has many advantages and cools the gas temperature below 500C before it might be used for storage step.

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