Development and Application of Near Infrared Spectrometric Rapid Detection System for Light Oil Products
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摘要: 近红外轻质油品快速检测技术的研制与应用,替代了实验室轻质油品的传统检验,实现检验业务批量自动进样、快速检测、自动清洗、机器代人和无人值守,解决了传统检测效率低、工作量大、成本高的问题. 同时也改善了有毒有害人工检测环境,及时准确的提供产品的质量信息,指导装置优化调整生产工艺参数,有效促进资源的合理利用和生产工艺优化提升,满足企业生产装置精细化管理和优化运行的需求,带动行业内轻质油品快速检测技术的创新发展.Abstract: Through the development and application of the near-infrared spectrometric rapid detection system for light oil products, the traditional inspection of light oil in the laboratory is replaced, the batch automatic sampling, rapid detection, automatic cleaning, machine replacement and unattended inspection of the inspection business are realized, the problems of low efficiency, large workload and high cost of traditional inspection are solved. Using the system the artificial detection environment of toxic and harmful substances are improved, the product quality information are provided timely and accurately, the device to optimize and adjust the production process parameters effectively is guided, the rational use of resources and the optimization and upgrading of production process are promoted. All these meets the needs of enterprise production device refined management and optimized operation, and drives the rapid detection technology innovation and development of light oil products in the industry.
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Key words:
- near-infrared spectrometric /
- light distillate /
- rapid detection
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表 1 近红外光谱仪性能表
Table 1. Performance table of near-infrared spectrometer
名 称 参 数 检测范围/cm−1 3 700~15 000 分辨率 可在1~64 cm−1范围
内调节,步长为2检测器信噪比 100 000∶1 波数再现性(@7 300 cm−1)/cm−1 <0.006 波数精度(@7 300 cm−1)/cm−1 <0.06 吸光度再现性(以光谱纯甲苯为
基准测量)/AU<0.002 表 2 自动进样器参数配置
Table 2. Parameter configuration of automatic sampler
名 称 参 数 进样模式 吸入式 样品盘位号 40位样品瓶 单次进样量 可调,大于10 mL 进样速度 >5 mL/min 进样时间 可调,最小单位1 s 最小单位1 s进样阀 电磁六通阀 表 3 模型精度表
Table 3. Model precision table
序号 样品名称 样品数量/个 对比分析
性质数/个与传统分析对比其中不符合
精度指标数/个对比分析
合格率/%1 一加氢裂化重石脑油 429 257 4 73 97.2 2 二加氢裂化重石脑油 449 274 3 41 98.5 3 二常重石脑油 393 201 5 70 96.5 4 三常重石脑油 435 261 0 41 98.4 5 szorb汽油 224 291 14 95.2 6 催化稳定汽油 347 218 6 108 95.1 7 重整抽提精制石脑油进料 264 318 2 58 98.2 8 重整抽提二甲苯塔顶油 251 201 0 27 98.7 9 重整抽提苯 259 513 0 100.0 10 重整抽提脱戊烷塔底油 209 250 4 48 98.1 11 一加氢裂化航煤 302 231 7 103 95.6 12 航煤加氢精制航煤 320 248 0 91 96.3 13 二常常一线 257 250 8 92 96.3 14 三常常一线 347 322 1 130 96.0 15 二加氢裂化航煤 312 237 3 87 96.3 16 一柴航精制航煤 230 180 3 30 98.3 17 混苯 83 123 4 26 97.9 18 直馏重石脑油 38 570 6 98.9 19 裂化重石脑油 32 474 2 99.6 20 92#乙醇汽油调和组分 62 618 20 96.8 21 异辛烷 89 89 0 100.0 22 民用航煤 67 603 16 97.3 合计 5 399 389 18 -
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