化工进展 ›› 2022, Vol. 41 ›› Issue (S1): 516-523.DOI: 10.16085/j.issn.1000-6613.2022-0521
收稿日期:
2022-03-30
修回日期:
2022-05-10
出版日期:
2022-10-20
发布日期:
2022-11-10
通讯作者:
付春龙
作者简介:
付春龙(1988—),男,硕士,工程师,研究方向为催化裂化流态化、含尘气体净化、煤气化细渣处理等。E-mail:fuchunlong.segr@sinopec.com。
基金资助:
FU Chunlong(), WANG Songjiang, LI Guozhi
Received:
2022-03-30
Revised:
2022-05-10
Online:
2022-10-20
Published:
2022-11-10
Contact:
FU Chunlong
摘要:
简述了煤气化细渣的基础燃烧特性、燃烧动力学和燃烧应用三方面的研究现状,分析表明:煤气化细渣基础燃烧特性较差,难以单独稳定燃烧,与其他燃料掺烧可提高其燃烧性能;煤气化细渣的粒径、掺烧比和种类等因素对其燃烧性能影响较大,应着重加以研究;煤气化细渣燃烧动力学多采用Coats-Redfern积分法进行研究,求解过程简单,但存在准确性相对较低的问题,采用多重扫描速率法等进行相关研究可提高准确性,具有研究价值,但鲜有报道。掺混燃烧是煤气化细渣燃烧应用的主要方式,具有一定的经济和环境效益,但多数会引起一些副作用;单独燃烧是煤气化细渣燃烧应用的另一方式,具有燃烧效率高的优点,但需对燃烧设备进行针对性的设计、开发。最后提出了煤气化细渣燃烧技术今后的研究方向,以期为相关领域科研工作者提供参考。
中图分类号:
付春龙, 王松江, 李国智. 煤气化细渣燃烧技术研究进展[J]. 化工进展, 2022, 41(S1): 516-523.
FU Chunlong, WANG Songjiang, LI Guozhi. Research progress on combustion technology of coal gasification fine slag[J]. Chemical Industry and Engineering Progress, 2022, 41(S1): 516-523.
样品 | Ti /℃ | Th /℃ | Tmax /℃ | Wmax /%·min-1 | Wmean /%·min-1 | S /%2·℃-3·min-2 |
---|---|---|---|---|---|---|
燃料煤 | 439.1 | 577.9 | 517.9 | 13.46 | 3.03 | 3.66×10-7 |
FS | 601.6 | 680.8 | 646.3 | 11.80 | 1.42 | 6.80×10-8 |
劣质烟煤 | 493.3 | 619.7 | 563.1 | 8.89 | 1.63 | 9.61×10-8 |
贫煤 | 514.2 | 642.0 | 580.0 | 11.50 | 2.24 | 1.52×10-7 |
无烟煤 | 520.6 | 648.8 | 578.5 | 12.77 | 2.28 | 1.66×10-7 |
石墨 | 778.8 | 948.1 | 873.2 | 9.34 | 1.62 | 2.63×10-8 |
表1 样品燃烧特性参数
样品 | Ti /℃ | Th /℃ | Tmax /℃ | Wmax /%·min-1 | Wmean /%·min-1 | S /%2·℃-3·min-2 |
---|---|---|---|---|---|---|
燃料煤 | 439.1 | 577.9 | 517.9 | 13.46 | 3.03 | 3.66×10-7 |
FS | 601.6 | 680.8 | 646.3 | 11.80 | 1.42 | 6.80×10-8 |
劣质烟煤 | 493.3 | 619.7 | 563.1 | 8.89 | 1.63 | 9.61×10-8 |
贫煤 | 514.2 | 642.0 | 580.0 | 11.50 | 2.24 | 1.52×10-7 |
无烟煤 | 520.6 | 648.8 | 578.5 | 12.77 | 2.28 | 1.66×10-7 |
石墨 | 778.8 | 948.1 | 873.2 | 9.34 | 1.62 | 2.63×10-8 |
样品 | Ti /℃ | Th /℃ | Tmax /℃ | Wmax/%·min-1 | Wmean/%·min-1 | S /%2℃-3·min-2 |
---|---|---|---|---|---|---|
FS-GE | 503.7 | 630.2 | 584.1 | 20.71 | 4.06 | 5.26×10-7 |
FS-OMB | 502.7 | 634.7 | 554.2 | 18.55 | 4.27 | 4.94×10-8 |
FS-GSP | 502.8 | 745.0 | 543.2 | 12.64 | 1.78 | 1.19×10-8 |
表2 样品燃烧特性参数
样品 | Ti /℃ | Th /℃ | Tmax /℃ | Wmax/%·min-1 | Wmean/%·min-1 | S /%2℃-3·min-2 |
---|---|---|---|---|---|---|
FS-GE | 503.7 | 630.2 | 584.1 | 20.71 | 4.06 | 5.26×10-7 |
FS-OMB | 502.7 | 634.7 | 554.2 | 18.55 | 4.27 | 4.94×10-8 |
FS-GSP | 502.8 | 745.0 | 543.2 | 12.64 | 1.78 | 1.19×10-8 |
样品 | Ti /℃ | Th /℃ | Tmax /℃ | Wmax/%·min-1 | S /10-8·%2℃-3·min-2 |
---|---|---|---|---|---|
0~75μm | 602.4 | 804.3 | 727.6 | 3.83 | 1.53 |
75~150μm | 591.7 | 850.6 | 757.3 | 4.38 | 2.02 |
≥150μm | 598.7 | 942.8 | 767.0 | 4.46 | 1.90 |
原始样品 | 596.2 | 931.1 | 762.4 | 3.95 | 1.53 |
表3 不同粒径煤气化细渣的燃烧特性参数
样品 | Ti /℃ | Th /℃ | Tmax /℃ | Wmax/%·min-1 | S /10-8·%2℃-3·min-2 |
---|---|---|---|---|---|
0~75μm | 602.4 | 804.3 | 727.6 | 3.83 | 1.53 |
75~150μm | 591.7 | 850.6 | 757.3 | 4.38 | 2.02 |
≥150μm | 598.7 | 942.8 | 767.0 | 4.46 | 1.90 |
原始样品 | 596.2 | 931.1 | 762.4 | 3.95 | 1.53 |
煤种 | Ti/℃ | Th/℃ | Tmax/℃ | Wmax/%·min-1 |
---|---|---|---|---|
烟煤 | 584 | 751 | 631 | -8.812 |
FS | 405 | 651 | 444 | -7.207 |
烟煤90%+FS 10% | 556 | 647 | 600 | -8.309 |
烟煤80%+FS 20% | 516 | 675 | 552 | -7.682 |
烟煤70%+FS 30% | 508 | 681 | 548 | -7.566 |
表4 样品燃烧特性参数
煤种 | Ti/℃ | Th/℃ | Tmax/℃ | Wmax/%·min-1 |
---|---|---|---|---|
烟煤 | 584 | 751 | 631 | -8.812 |
FS | 405 | 651 | 444 | -7.207 |
烟煤90%+FS 10% | 556 | 647 | 600 | -8.309 |
烟煤80%+FS 20% | 516 | 675 | 552 | -7.682 |
烟煤70%+FS 30% | 508 | 681 | 548 | -7.566 |
FS质量分数 /% | Ti /℃ | Th /℃ | Tmax /℃ | Wmax /%·min-1 | S /10-8·%2·℃-3·min-2 |
---|---|---|---|---|---|
0 | 383.5 | 698.7 | 498.5 | 5.57 | 6.14 |
10 | 377.3 | 717.7 | 503.9 | 5.06 | 4.89 |
30 | 394.6 | 735.2 | 501.0 | 4.67 | 3.94 |
50 | 412.3 | 725.5 | 505.2 | 4.53 | 3.59 |
70 | 485.7 | 802.1 | 736.8 | 3.99 | 2.18 |
100 | 591.7 | 850.6 | 757.3 | 4.38 | 2.02 |
表5 样品燃烧特性参数
FS质量分数 /% | Ti /℃ | Th /℃ | Tmax /℃ | Wmax /%·min-1 | S /10-8·%2·℃-3·min-2 |
---|---|---|---|---|---|
0 | 383.5 | 698.7 | 498.5 | 5.57 | 6.14 |
10 | 377.3 | 717.7 | 503.9 | 5.06 | 4.89 |
30 | 394.6 | 735.2 | 501.0 | 4.67 | 3.94 |
50 | 412.3 | 725.5 | 505.2 | 4.53 | 3.59 |
70 | 485.7 | 802.1 | 736.8 | 3.99 | 2.18 |
100 | 591.7 | 850.6 | 757.3 | 4.38 | 2.02 |
样品 | 温度区间/℃ | E/kJ·mol-1 | A/min-1 |
---|---|---|---|
YLM | 300~441 | 23.42 | 0.0801 |
441~566 | 37.21 | 0.8953 | |
10%FS-90%YLM | 302~478 | 23.59 | 0.0664 |
478~558 | 48.27 | 7.4901 | |
30%FS-70%YLM | 306~477 | 25.51 | 0.0865 |
477~577 | 36.63 | 0.8517 | |
60%FS-40%YLM | 311~479 | 20.89 | 0.0427 |
479~612 | 18.39 | 0.0194 | |
FS | 530~587 | 91.28 | 1091.4410 |
587~641 | 75.11 | 110.9159 |
表6 燃烧动力学参数
样品 | 温度区间/℃ | E/kJ·mol-1 | A/min-1 |
---|---|---|---|
YLM | 300~441 | 23.42 | 0.0801 |
441~566 | 37.21 | 0.8953 | |
10%FS-90%YLM | 302~478 | 23.59 | 0.0664 |
478~558 | 48.27 | 7.4901 | |
30%FS-70%YLM | 306~477 | 25.51 | 0.0865 |
477~577 | 36.63 | 0.8517 | |
60%FS-40%YLM | 311~479 | 20.89 | 0.0427 |
479~612 | 18.39 | 0.0194 | |
FS | 530~587 | 91.28 | 1091.4410 |
587~641 | 75.11 | 110.9159 |
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