CN105820849A - 一种锅炉燃烧专用甲醇燃料 - Google Patents

一种锅炉燃烧专用甲醇燃料 Download PDF

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CN105820849A
CN105820849A CN201610245199.3A CN201610245199A CN105820849A CN 105820849 A CN105820849 A CN 105820849A CN 201610245199 A CN201610245199 A CN 201610245199A CN 105820849 A CN105820849 A CN 105820849A
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boiler combustion
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王菊林
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Abstract

本发明涉及一种锅炉燃烧专用甲醇燃料，甲醇燃料的组成成分按质量百分比计为如下：甲醇85%，丙酮1~7%，组分A8~14%，其中，组分A为过氧化锌、乙醚、二甲氧基甲烷、脂肪类活性剂、甲基叔丁基醚和正辛烷中的一种或几种混合而成，本发明有利于提高甲醇燃料的热值，制备工艺简单、周期短，工艺条件控制，以便替代目前不可再生的锅炉燃料，使锅炉燃烧排放的尾气更加清洁，尾气排放一氧化碳减少95％以上。

Description

一种锅炉燃烧专用甲醇燃料
技术领域
本发明涉及一种锅炉燃烧专用甲醇燃料，属于新能源技术领域。
背景技术
现在锅炉燃料主要原料是柴油，柴油属于化石能源，是不可再生资源，随着经济的发展对能源的需求越来越大，而可用能源却越来越少，且柴油燃烧后的废气排放量巨大，成为雾霾天气的重要原因之一，越来越不经济适用。
甲醇燃料是利用工业甲醇或燃料甲醇，加变性醇添加剂，与现有国标汽柴油或组分油,按一定体积或重量比经严格科学工艺调配制成的一种新型清洁燃料，可替代汽柴油，由于自身含有氧元素，可以充分燃料，属于清洁能源，另外甲醇来源广泛，可以通过多种渠道获得，属于可再生能源，将甲醇甲醇燃料利用于锅炉燃烧，对减少环境污染、创造经济效益具有重大意义和深渊影响，然而现有技术中的甲醇燃料存在热值低、与现在锅炉燃烧系统匹配不适应、存在存储危险性等问题，不能直接应用。
发明内容
本发明的目的是针对现有技术的缺陷，提供一种锅炉燃烧专用甲醇燃料，提高甲醇燃料的热值，制备工艺简单、周期短，工艺条件控制，以便替代目前不可再生的锅炉燃料，使锅炉燃烧排放的尾气更加清洁。
本发明是通过如下的技术方案予以实现的：
一种锅炉燃烧专用甲醇燃料，所述甲醇燃料的组成成分按质量百分比计为如下：甲醇85%，丙酮1~7%，组分A8~14%；
其中，所述组分A为过氧化锌、乙醚、二甲氧基甲烷、脂肪类活性剂、甲基叔丁基醚和正辛烷中的一种或几种混合而成。
上述一种锅炉燃烧专用甲醇燃料，其中，所述氧化锌、乙醚、二甲氧基甲烷、脂肪类活性剂、甲基叔丁基醚和正辛烷的质量配比如下：过氧化锌：乙醚：二甲氧基甲烷：脂肪类活性剂：甲基叔丁基醚：正辛烷=（1~5）：（1~5）：（1~5）：（1~5）：（1~5）：（1~5）。
上述一种锅炉燃烧专用甲醇燃料，其中，所述脂肪类活性剂包括脂肪醇聚氧乙烯醚、脂肪酸醇酰胺、脂肪醇醚硫酸钠，吐温20和吐温80。
上述一种锅炉燃烧专用甲醇燃料的制备方法，其制备方法如下：
（1）按质量配比过氧化锌：乙醚：二甲氧基甲烷：脂肪类活性剂：甲基叔丁基醚：正辛烷=（1~5）：（1~5）：（1~5）：（1~5）：（1~5）：（1~5），按顺序依次取过氧化锌、乙醚、二甲氧基甲烷、脂肪类活性剂、甲基叔丁基醚和正辛烷中的一种或几种，每种物料间隔10min加入搅拌釜，在常温下以（0.5~1）℃/min的速度升温，并在100~150r/min的搅拌速度下每间隔20min升速20~40r/min，进行搅拌1.5~2h，制得组分A；
（2）按质量百分数计取85%甲醇加入反应釜，并将1~7%丙酮雾化喷出，在45~55℃下，以200~300r/min的转速搅拌进行一次混炼40~60min，随后控制搅拌速度为250~350r/min，边搅拌边加入步骤（1）所得8~14%的组分A，进行二次混炼40~60min，冷却至室温即得甲醇燃料。
本发明的有益效果为：
本发明中甲醇掺烧比可达85％，确保甲醇燃料质量均衡化，使甲醇燃料适应于锅炉燃料设定范围，减少燃烧不稳定和燃尽温度差，从而避免过滤炉膛结焦、超温、爆管、灭火等问题，同时保证燃烧充分，减少因热值差异导致的燃烧不充分，以便减小燃料消耗。
本发明通过添加过氧化锌、乙醚、二甲氧基甲烷、脂肪类活性剂、甲基叔丁基醚和正辛烷中的一种或几种混合而成的组分A和丙酮，作为甲醇燃烧的助燃剂，且脂肪类活性剂采用脂肪醇聚氧乙烯醚、脂肪酸醇酰胺、脂肪醇醚硫酸钠，吐温20和吐温80，配伍性好，增加甲醇燃料稳定性，利于高碳化合物或活性成分提高甲醇燃料的平均热值，从而在相同条件下，单位重量的燃料产能越大，消耗量越低，同时使甲醇能充分燃烧，尾气排放一氧化碳减少95％以上，以便替代目前不可再生的锅炉燃料，使锅炉燃烧排放的尾气更加清洁，提高存储稳定性、安全性和储存期限。
本发明采用的工艺简单、周期短，工艺条件控制，使甲醇燃料调制均匀充分，分散性好，利于提高甲醇燃料的质量均衡性和稳定性，提高加工效率。
具体实施方式
下面结合实施例对本发明的具体实施方式作进一步说明。
实施例1
一种锅炉燃烧专用甲醇燃料的制备方法，其制备方法如下：
（1）按质量配比过氧化锌：乙醚：二甲氧基甲烷：吐温20：甲基叔丁基醚：正辛烷=1：3：3：4：2：5，按顺序依次取过氧化锌、乙醚、二甲氧基甲烷、吐温20、甲基叔丁基醚和正辛烷，每种物料间隔10min加入搅拌釜，在常温下以0.8℃/min的速度升温，并在120r/min的搅拌速度下每间隔20min升速30r/min，进行搅拌2h，制得组分A，所述吐温20由上海迈瑞尔化学技术有限公司提供；
（2）按质量百分数计取85%甲醇加入反应釜，并将3%丙酮雾化喷出，在48℃下，以260r/min的转速搅拌进行一次混炼45min，随后控制搅拌速度为300r/min，边搅拌边加入步骤（1）所得12%的组分A，进行二次混炼50min，冷却至室温即得甲醇燃料。
实施例2
一种锅炉燃烧专用甲醇燃料的制备方法，其制备方法如下：
（1）按质量配比过氧化锌：脂肪醇聚氧乙烯醚：正辛烷=3：4：2，按顺序依次取过氧化锌、脂肪醇聚氧乙烯醚、正辛烷，每种物料间隔10min加入搅拌釜，在常温下以0.8℃/min的速度升温，并在130r/min的搅拌速度下每间隔20min升速40r/min，进行搅拌1.7h，制得组分A，所述脂肪醇聚氧乙烯醚由上海邦成化工有限公司提供；
（2）按质量百分数计取85%甲醇加入反应釜，并将6%丙酮雾化喷出，在52℃下，以280r/min的转速搅拌进行一次混炼50min，随后控制搅拌速度为310r/min，边搅拌边加入步骤（1）所得9%的组分A，进行二次混炼55min，冷却至室温即得甲醇燃料。
实施例3
一种锅炉燃烧专用甲醇燃料的制备方法，其制备方法如下：
（1）按质量配比乙醚：二甲氧基甲烷=5：2：3，按顺序依次取乙醚和二甲氧基甲烷，每种物料间隔10min加入搅拌釜，在常温下以1℃/min的速度升温，并在140r/min的搅拌速度下每间隔20min升速30r/min，进行搅拌1.5h，制得组分A；
（2）按质量百分数计取85%甲醇加入反应釜，并将4%丙酮雾化喷出，在49℃下，以230r/min的转速搅拌进行一次混炼50min，随后控制搅拌速度为330r/min，边搅拌边加入步骤（1）所得11%的组分A，进行二次混炼60min，冷却至室温即得甲醇燃料。
实施例4
一种锅炉燃烧专用甲醇燃料的制备方法，其制备方法如下：
按质量百分数计取85%甲醇加入反应釜，并将7%丙酮雾化喷出，在52℃下，以290r/min的转速搅拌进行一次混炼55min，随后控制搅拌速度为260r/min，边搅拌边加入8%的脂肪醇醚硫酸钠，所述脂肪醇醚硫酸钠由上海卡博工贸有限公司提供，进行二次混炼45min，冷却至室温即得甲醇燃料。
实施例5
一种锅炉燃烧专用甲醇燃料的制备方法，其制备方法如下：
按质量百分数计取85%甲醇加入反应釜，并将5%丙酮雾化喷出，在50℃下，以230r/min的转速搅拌进行一次混炼48min，随后控制搅拌速度为340r/min，边搅拌边加入10%的正辛烷，进行二次混炼50min，冷却至室温即得甲醇燃料。
本发明有益的效果是：1.提高甲醇的热值，可达8000kcat/kg以上；2.甲醇掺烧比可达85％；3.尾气排放一氧化碳减少95％以上。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围内。因此，本发明的保护范围应该以权利要求书的保护范围为准。

Claims (4)

1.一种锅炉燃烧专用甲醇燃料，其特征为，所述甲醇燃料的组成成分按质量百分比计为如下：甲醇85%，丙酮1~7%，组分A8~14%；
其中，所述组分A为过氧化锌、乙醚、二甲氧基甲烷、脂肪类活性剂、甲基叔丁基醚和正辛烷中的一种或几种混合而成。
2.如权利要求1所述的一种锅炉燃烧专用甲醇燃料，其特征为，所述氧化锌、乙醚、二甲氧基甲烷、脂肪类活性剂、甲基叔丁基醚和正辛烷的质量配比如下：过氧化锌：乙醚：二甲氧基甲烷：脂肪类活性剂：甲基叔丁基醚：正辛烷=（1~5）：（1~5）：（1~5）：（1~5）：（1~5）：（1~5）。
3.如权利要求1所述的一种锅炉燃烧专用甲醇燃料，其特征为，所述脂肪类活性剂包括脂肪醇聚氧乙烯醚、脂肪酸醇酰胺、脂肪醇醚硫酸钠，吐温20和吐温80。
4.如权利要求1所述的一种锅炉燃烧专用甲醇燃料的制备方法，其特征为，其制备方法如下：
（1）按质量配比过氧化锌：乙醚：二甲氧基甲烷：脂肪类活性剂：甲基叔丁基醚：正辛烷=（1~5）：（1~5）：（1~5）：（1~5）：（1~5）：（1~5），按顺序依次取过氧化锌、乙醚、二甲氧基甲烷、脂肪类活性剂、甲基叔丁基醚和正辛烷中的一种或几种，每种物料间隔10min加入搅拌釜，在常温下以（0.5~1）℃/min的速度升温，并在100~150r/min的搅拌速度下每间隔20min升速20~40r/min，进行搅拌1.5~2h，制得组分A；
（2）按质量百分数计取85%甲醇加入反应釜，并将1~7%丙酮雾化喷出，在45~55℃下，以200~300r/min的转速搅拌进行一次混炼40~60min，随后控制搅拌速度为250~350r/min，边搅拌边加入步骤（1）所得8~14%的组分A，进行二次混炼40~60min，冷却至室温即得甲醇燃料。
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