A novel desulfurization-based triazine solution and its application to Changqing gas zone

Xue Gang, Ge Tao, Yang Hengyuan, Jiang Chengyin, Zheng Xin, He Lei, Feng Bo

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Natural Gas Technology and Economy ›› 2020, Vol. 14 ›› Issue (3) : 55-61. DOI: 10.3969/j.issn.2095-1132.2020.03.009
SURFACE ENGINEERING

A novel desulfurization-based triazine solution and its application to Changqing gas zone

  • Xue Gang1, Ge Tao1, Yang Hengyuan2, Jiang Chengyin3, Zheng Xin1, He Lei1, Feng Bo1
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Abstract

In order to fully understand the desulfurization mechanism of triazine solution, accurately make clear the sulfur capacity, optimal reaction temperature, and available H2S concentration range, and provide beneficial reference for domestic desulfurization technologies used for natural gas with low sulfur throughputs, this study took the triazine solution based on desulfurization test in well sites and stations of natural gas with low sulfur throughputs in Sulige gasfield as an objective to analyze the desulfurization effect via this triazine solution in three new types of fluid desulfurization devices respectively used in lab tests, well sites, and stations. Results show that (1) this desulfurization-based triazine solution has the advantages of high sulfur capacity, fast desulfurization, no regeneration required, nonioxic desulfurization product, and direct injection into strata. Moreover, its application to domestic desulfurization of natural gas with low sulfur throughputs is more promising; (2) some lab device is developed to test the sulfur capacity with eight formulas of triazine solution, and the solution based on desulfurization devices suitable for well sites and stations are developed. And their application effects are better; and (3) as a novel technology, this solution has been successfully applied to some remote Lower Paleozoic gas wells and gas-gathering stations in Sulige gasfield. And with an increase of application scale and an improvement of formula technologies, its cost and the sulfur capacity will individually decrease and increase step by step, so its application will get broader in the future.

Key words

Triazine solution / Liquid desulfurization / Sulfur capacity / Integrated device / Potential sulfur content / Chengqing gas zone / Sulige gasfield

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Xue Gang , Ge Tao , Yang Hengyuan , Jiang Chengyin , Zheng Xin , He Lei , Feng Bo. A novel desulfurization-based triazine solution and its application to Changqing gas zone. Natural Gas Technology and Economy. 2020, 14(3): 55-61 https://doi.org/10.3969/j.issn.2095-1132.2020.03.009

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