Comprehensive Utilization for Neogene Lignite of the Zhaotong Basin, South China, and Its Environment Impacts,Energy & Fuels

当前位置： X-MOL 学术 › Energy Fuels › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Comprehensive Utilization for Neogene Lignite of the Zhaotong Basin, South China, and Its Environment Impacts
Energy & Fuels ( IF 5.3 ) Pub Date : 2018-09-05 00:00:00 , DOI: 10.1021/acs.energyfuels.8b02354
Jie Long _{1,

2} , Shixi Zhang ₁ , Kunli Luo _{1,

2}

Affiliation

Neogene lignite is widely used for enterprise’s electric power generation, local residents’ warming and cooking, and crops’ fertilizer in South China nowadays. But there is still no report about the element variations in Neogene lignite from the Zhaotong Basin, South China. Understanding the elemental concentration in lignite is of great importance to comprehensive utilization and to evaluation of environmental impacts of the Neogene lignite. We studied the variation patterns of 34 elements in lignite samples collected from the Neogene Zhaotong Formation at Zhaotong Basin, Yunnan Province, China. The arithmetic average of Cr, V, Ga, As, Cu, Rb, Co, Mo, and Cd in studied lignite samples is higher than those of China coals, while the content of Li and Bi are lower. Contents of As, Rb, La, Ni, Cd, Mo, Co, Ga, and V in northeastern Yunnan lignite are higher than the corresponding elements in common American Texas lignite, while contents of Li and Bi are lower. Elements are classified into four groups (Si–K–Zn–Rb–Ba–Pb, Co–Cd–Na–Al, Ni–Ti–Bi–Cr–Cu–In–Mn–Mg-Ga–Fe–Tl, and V–U–Cs–Sc–La–Sr–L–Se–Ca–As–Mo-S) based on their correlation coefficient with ash yield. Elements, including Al, K, Na, Si, Ti, Ba, Bi, Cd, Cr, Cu, Cs, Co, Ga, Ni, Sc, Zn, and Pb, decrease from bottom to top of the Neogene Zhaotong Formation, whereas Ca, Mg, As, Se, Mo, Fe, and S increase. In addtion, in M2 and M3 coal-bearing beds, Ga has potential applications after recycling and Se could be reutilized as a kind of Se-containing fertilizer, and their reserves estimations are approximately 98 × 10⁴ (Ga) tons and 7.8 × 10⁴ tons (Se). Cr and Cd in Neogene lignite have potential risk for local natural environments and the health of human beings.

更新日期：2018-09-05

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南

全部期刊列表>>