The selection about the sulfur content in the coal of ultralow emission desulfurization transformation in coalfired units

Abstract

Abstract:

Sulfur content of coal was one of important factors that would affect the ultralow emission desulfurization transformation. Highsulphur coal is of low cost but high cost of initial investment and operating. Choosing appropriate sulfur content of coal is of great significance for the power plant operation. Taking the limestonegypsum wet desulphurization transformation project on a 300MW coalfired units in southwest as an example, it estimates the investments in the ultralow emission desulfurization transformation schemes based on the different condition of asreceived sulfur content in coal which are 3.85%, 2.43% and 1.06% (the corresponding factory price are 797，812，and 861yuan/ton). Taking the coal whose sulfur content is 1.06% as transformation scheme benchmark, taking annual cost method model，the investment payback period was 2.7 years and 3.5 years respectively when the asreceived sulfur content in coal are 3.85% and 2.43%. It offers advice according to the power plant operating conditions, and provides the reference for the sulfur content selection for ultralow emission desulfurization transformation in coalfired units.

Key words:

">">ultra">">low emission desulfurization transformation；coal">">fired；sulfur content；investment payback period ；annual cost method model

LI Zhuang，HU Da，WANG Jianfeng，SUN Haifeng，ZHU Yue.

The selection about the sulfur content in the coal of ultralow emission desulfurization transformation in coalfired units

[J]. Huadian Technology, 2018, 40(2): 68-70.

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The selection about the sulfur content in the coal of ultralow emission desulfurization transformation in coalfired units

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