制备黑色液体煤炭水泥,基于弱黑色酒精,用于去除蒸发部分
Jingjing Yang1, Mengyan Wang1, Bolun Li1
1Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering, Guangxi University, Guangxi Zhuang Autonomous Region, Nanning 530004, China.
ACS omega
|May 19, 2025
概括
这项研究开发了黑色液体煤水泥 (BLCWS),用于直接利用弱黑色液体. 优化的BLCWS表现出卓越的流动性和稳定性,有助于纸和造纸行业减排目标.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 纸和纸张行业在黑色度较低时面临能源消耗的挑战.
- 减少氧化硫 (SOx) 和二氧化碳 (CO2) 排放对于环境可持续性至关重要.
- 直接利用薄弱的黑色液体可以提高工艺效率并减少浪费.
研究的目的:
- 调查黑色酒精炭水泥 (BLCWS) 的制备和性能,用于直接消耗弱黑色酒精.
- 优化 BLCWS 配方,以提高流动性和静态稳定性.
- 评估BLCWS在减少纸行业能源消耗和污染物排放方面的潜力.
主要方法:
- 用不同的固体含量,研磨时间和添加剂量制备BLCWS.
- 描述BLCWS的特性,包括流动性,静态稳定性,表面粘度和水释放率.
- 对BLCWS与工业煤炭水泥 (CWS) 的性能进行比较分析.
主要成果:
- 具有66.5%固体含量,低氧含量和低氧碳比的BLCWS显示出良好的流动性和静态稳定性.
- 通过66.5%的固体含量,10分钟的研磨和1%的添加剂,实现了最佳的泥成形性能.
- 与工业CWS相比,开发的BLCWS显示了显著低的水释放率 (25天后0.75%),以及优越的性能.
结论:
- 通过BLCWS直接利用弱黑色液体是提高能源效率和减少排放的可行策略.
- 优化的BLCWS配方提供了增强的风湿性质和长期稳定性.
- 这项研究支持纸和造纸行业的碳峰值和碳中和目标.
相关概念视频
Sample Preparation for Analysis: Advanced Techniques
283
Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
283
Washing, Drying, and Ignition of Precipitates
804
After filtration, the precipitate is washed to remove coprecipitated impurities and any remaining mother liquor. Colloidal precipitates, such as silver chloride, are washed with an electrolyte (such as dilute nitric acid) to prevent the peptization of the precipitate. In the case of slightly soluble precipitates, the wash solution contains a common ion to reduce solubility. Lead sulfate, which is slightly soluble in water, is washed with dilute sulfuric acid. Similarly, wash solutions may be...
804
Distillation: Vapor–Liquid Equilibria
2.6K
Distillation is a separation technique that takes advantage of the boiling point properties of disparate elements in a mixture. To perform distillation, we begin by heating a miscible mixture of two liquids with a significant difference in boiling points (at least 20°C). As the solution heats up and reaches the bubble point of the more volatile component, some molecules of the more volatile component transition into the gas phase and travel upward into the condenser, which is a glass tube...
2.6K
Precipitation and Co-precipitation
1.6K
Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
1.6K
Coagulation
256
Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
256
Filtration
744
Filtration is a physical separation process that involves passing a suspension through a porous medium to separate solids from fluids. During filtration, solids collect on the porous medium while liquids, also collectively known as the filtrate, pass through. The filtration medium is selected based on the filtration purpose, quantity, and nature of the precipitate. The general criteria for a suitable filtering medium are that it is inert, mechanically strong, nonabsorbent toward dissolved...
744


