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Toolbox Transisi Berkeadilan untuk kawasan batu bara (2022)

Beutel, Jannis ; Kurwan, Jenny ; Wallenta, Annisa ; [et al.]

Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie

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Publication Date: 2022-07-12

Description: Dengan semakin berkurangnya "anggaran karbon" atau carbon budget di seluruh dunia, berbagai negara sedang mencari solusi untuk mengurangi emisi gas rumah kaca. Karena produksi dan penggunaan batu bara dapat dikatakan sebagai salah satu penghasil emisi karbon yang sangat besar dan memicu perubahan iklim, oleh karena itu dapat diperkirakan bahwa wilayah penghasil batu bara akan sangat terdampak akibat transformasi energi dari sistem energi yang berbasis bahan bakar fosil menjadi energi terbarukan. Tantangan yang muncul tidak hanya di bidang produksi energi, perlindungan lingkungan, tetapi juga dalam aspek ekonomi dan sosial di kawasan kawasan batu bara yang tengah menghadapi transformasi - sering disebut dengan istilah "Transisi Berkeadilan". Para pengambil keputusan di wilayah penghasil batu bara, sangat membutuhkan alat pendukung untuk memulai langkah-langkah untuk mendiversifikasi ekonomi lokal yang disaat bersamaan juga mendukung pekerja dan masyarakat lokal. Transisi Berkeadilan ini membutuhkan perencanaan yang komprehensif, kebijakan baru dan penyesuaian serta keterlibatan semua pemangku kepentingan. Oleh karena itu, Wuppertal Institute merancang "Just Transition Toolbox" untuk memberikan dukungan bagi para praktisi di kawasan penghasil batu bara di seluruh dunia yang menggambarkan tantangan dan peluang dalam transisi berkelanjutan untuk audiens global. Toolbox Transisi Berkeadilan ini terdiri dari informasi tentang pengembangan strategi, rekomendasi untuk struktur tata kelola, mendorong lapangan kerja berkelanjutan, menunjukan pilihan teknologi dan menyoroti rehabilitasi lingkungan dan penggunaan kembali situs dan infrastruktur terkait batubara. Toolbox ini dikembangkan berdasarkan seperangkat alat yang dirancang oleh Wuppertal Institute melalui kerja sama dengan berbagai pemangku kepentingan atas inisiatif Uni Eropa untuk daerah-daerah kawasan Batubara yang berada dalam masa transisi. Toolbox ini juga menampilkan pelajaran yang diambil dari kawasan batu bara mitra SPIPA seperti India, Indonesia, Afrika Selatan, Jepang, Korea Selatan, Kanada, dan Amerika Serikat. Akronim SPIPA adalah kependekan dari "Kemitraan Strategis untuk Implementasi Perjanjian Persetujuan Paris" pada program UE-BMU yang dibiayai bersama oleh GIZ.

Keywords: ddc:600

Repository Name: Wuppertal Institut für Klima, Umwelt, Energie

Language: Indonesian

Type: report , doc-type:report

Format: application/pdf

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Genesis and energy significance of hydrogen in natural gas (2021)

Han, S. ; Tang, Z. ; Yang, C. ; [et al.]

In: Natural Gas Geoscience

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Publication Date: 2022-02-04

Description: For a long time， with the continuous expansion of the oil and gas genesis theory and the increasing global demand for clean energy， hydrogen， as an important link connecting the theory of inorganic and organic hydrocarbon generation， as well as a promising clean energy， has gradually attracted widespread academic attention. The genesis of hydrogen in natural gas is relatively complex and diverse. According to its reaction mechanism， it can be divided into two categories： inorganic and organic. Inorganic genesis is mainly earth degassing， water rock reaction and water radiation decomposition， while organic genesis is dominated by biological action and organic matter pyrolysis. At present， hydrogen isotope and geochemical characteristics of associated gases are mainly used to identify the origin of hydrogen. However， due to the complex and diverse sources of hydrogen and its active chemical properties， it is still unable to identify the origin of hydrogen systematically and accurately. Due to the extensive genesis of hydrogen， natural gas with different hydrogen concentrations has been found in different geological conditions around the world， and the hydrogen content varies greatly （0.1%-99%）. Hydrogen can participate in hydrocarbon generation in Fischer Tropsch synthesis as a reducing agent， and also can be used as a hydrogen source to improve the hydrocarbon yield during the thermal evolution of organic matter. Therefore， the existence of hydrogen may extend the lower limit of deep gas exploration and development. Based on the systematic summary of the genetic mechanism and distribution of hydrogen， this paper discusses the energy significance of hydrogen in natural gas， and provides a reference for the future research on hydrogen rich natural gas resources.

Language: Chinese

Type: info:eu-repo/semantics/article

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Analysis on the mechanical causes of the complex seismicity in Changning area, China (2021)

Hu, X. ; Cui, X. ; Zhang, G. ; [et al.]

In: Chinese Journal of Geophysics - Chinese Edition

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Publication Date: 2021-06-14

Description: The Changning MS6.0 earthquake and its moderate to strong aftershocks, which occurred in the axial area of Changning anticline, exhibit different features with the moderate to strong earthquakes that occurred in the southern syncline area nearby, although these two areas are only a dozen kilometers away. Whether this difference is only caused by different fault structures, or caused by local change is still a matter of debate. In order to answer this question, basing on the correction of small earthquake location and seismic velocity structure through double-difference tomography inversion, this paper determined the fine structure of the crustal stress field by using comprehensive focal mechanism solutions, and analyzed its mechanical consistency with the focal mechanism solutions of moderate to strong earthquakes. It is found that for the different subareas of Changning area, the maximum principal stress remains horizontal, and its azimuth remains almost East-West oriented although it has a small clockwise rotation from north to south; meanwhile, the stress regime exhibit a significant local change, which is thrust stress regime for the axial area of Changning anticline, against strike-slip stress regime for the southern syncline area. The stress fields in these two subareas highly accord with the focal mechanism solutions of moderate to strong earthquakes in the corresponding area, but poorly accord with, or even contradict that in the non-corresponding area, which indicates that the local stress change of stress field is the necessary mechanical basis for the complex seismicity behavior in Changning area. Additional rock mechanics analysis points out that lateral difference of Poisson's ratio of rock is probably the main cause of this local change of stress field. This paper also discusses the seismogenic fault structure of Changning MS6.0 earthquake sequence, and suggests the activation of the basement fault(s) in the depth range of 6 to 9 km in the axial area of Changning anticline driven by regional stress field is the potential cause of the occurrence of Changning MS6.0 earthquake sequence.

Language: Chinese

Type: info:eu-repo/semantics/article

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