|
Title: |
The Feature of Linxi Coal Mine Gas Emission |
|
Source: |
The Second China Energy Scientist Forum (CESF 2010 E-BOOK)
(pp 1276-1279)
|
|
Author(s): |
Huaimeng Wang, China University of Mining and Technology ,the school of resource and earth science，Coaled methane resources & Reservoir formation process，Xuzhou，China，221008
Yanming Zhu, China University of Mining and Technology ,the school of resource and earth science，Coaled methane resources & Reservoir formation process，Xuzhou，China，221008
Yue Luo, China University of Mining and Technology ,the school of resource and earth science，Coaled methane resources & Reservoir formation process，Xuzhou，China，221008
Qinglei Yan, China University of Mining and Technology ,the school of resource and earth science，Coaled methane resources & Reservoir formation process，Xuzhou，China，221008
Wu Li, China University of Mining and Technology ,the school of resource and earth science，Coaled methane resources & Reservoir formation process，Xuzhou，China，221008
Jiansheng Zhang, China University of Mining and Technology ,the school of resource and earth science，Coaled methane resources & Reservoir formation process，Xuzhou，China，221008
Heqing Zhong, College of Environmental Science and Engineering, Tongji University, State Key Laboratory of Pollution Control and Resource Reuse Tongji University, Shanghai China |
|
Abstract: |
The modified HZSM-5 catalysts were prepared by treating with NaOH and phosphorus modification, catalytic performance of the modified HZSM-5 catalysts for co-cracking of methanol and naphtha were investigated. The result showed that modified HZSM-5 catalysts have greater specific surface area, pore size and pore volume, and have hgher cracking activity, propylene selectivity and stability. The propylene yield of methanol and naphtha co-cracking reached 33.62% under the conditions of reaction temperature 650 ℃, liquid space velocity 4h-1, volume ratio of methanol to oil 2, the pressure 0.2MPa. Abstract: Based on the geological features and existing gas emission data, This paper analyzes Linxi mine gas emission characteristics, and studied the the geological factors affecting gas emission which mainly includes faults, folds, groundwater, seam depth and the intrusion of magmatic rocks. The results show that gas emission decreases when there are normal faults and where groundwater is rich. what's more, the deeper that coal seams bury and the intrusion of magmatic rocks will result that the gas emission increases.
|