Effect of Dimethyl Ether as an Additive to Liquefied Petroleum Gas Flame in SiC–Al2O3-Based Porous Inert Burner

2017 ◽  
Vol 31 (11) ◽  
pp. 12721-12740 ◽  
Author(s):  
Snehasish Panigrahy ◽  
Subhash C. Mishra
Keyword(s):  
Dimethyl Ether ◽  
Liquefied Petroleum Gas ◽  
Gas Flame

scholarly journals Increasing LPG production by adding volatile hydrocarbons to reduce import gap in Egypt

2020 ◽  
Vol 10 (8) ◽  
pp. 3733-3750
Author(s):  
Ahmed M. Shahin ◽  
Ayat O. Ghallab ◽  
Ahmed Soliman
Keyword(s):  
Twentieth Century ◽  
Dimethyl Ether ◽  
Production Cost ◽  
Liquid Fuel ◽  
Critical Properties ◽  
Liquefied Petroleum Gas ◽  
Heating Value ◽  
Volatile Hydrocarbons ◽  
Fuel Demand ◽  
The Cost

Abstract Liquefied petroleum gas (LPG) becomes popular in the twentieth century as source of energy, since it is economically feasible to be produced, transported, sold and stored as a liquid fuel. LPG in Egypt is considered one of the most important domestic fuels. Egypt imports half of its LPG fuel demand. Many researches have been developed to increase the production of LPG in Egypt by increasing the productivity of the refineries. The objective of this study is to investigate the possibility of adding other relatively volatile hydrocarbons as ethane, n-pentane and pentanes’ isomers (iso-pentane and neo-pentane) and/or utilizing relatively volatile oxi-hydrocarbons [mainly dimethyl ether (DME) or dimethyl propane (DMP)] to increase LPG production without affecting its specifications, in order to reduce the import gap of LPG in Egypt. The new LPG mixture is adjusted to meet the Egyptian specifications of LPG (2020). Due to ethane critical properties, it is recommended not to add ethane to LPG since the behavior of ethane cannot be predicted at 50 °C and will be separated inside the LPG bottle. In addition, it will necessitate the increase in LPG butane content. In summer, it is recommended to add i-C5 or 2,2DMP or a mixture of both to LPG (depending on the cost). In winter, it is recommended to add 2,2DMP or a mixture of 2,2DMP with i-C5 to LPG (depending on the cost). Adding DME to LPG with any percentage will decrease the heating value below the Egyptian heating value specifications (2020). Adding neo-pentane to LPG is more preferable than DME, since the heating value of neo-pentane is higher than that of DME. Also, the production cost of the neo-pentane is lower than that of DME.

scholarly journals Dimethyl ether (DME) as potential environmental friendly fuel

2019 ◽  
Vol 116 ◽  
pp. 00048
Author(s):  
Patrycja Makoś ◽  
Edyta Słupek ◽  
Joanna Sobczak ◽  
Dawid Zabrocki ◽  
Jan Hupka ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
High Efficiency ◽  
Combustion Noise ◽  
Compression Ignition ◽  
Liquefied Petroleum Gas ◽  
Compressed Natural Gas ◽  
Environmental Friendly ◽  
Potential Impact ◽  
Petroleum Fuels ◽  
Conventional Diesel Fuel

In recent years, there has been a growing interest in replacing petroleum fuels with so-called second generation environmental friendly fuels. Compared to traditional petroleum fuels dimethyl ether (DME) could be used as a clean high-efficiency compression ignition fuel with reduced particulate matter (PM), sulfur oxides (SOx), hydrocarbons (HC), carbon monoxide (CO) as well as combustion noise. Compared to some of the other leading alternative fuel candidates i.e., methane, methanol, ethanol, compressed natural gas, DME appears to have the largest potential impact on society including well-to-wheel greenhouse gas emissions, non-petroleum feedstocks, well-to-wheel efficiencies, fuel versatility, infrastructure, availability, economics, and safety and should be considered as the fuel of choice for eliminating the dependency on petroleum. This paper reviews the properties and the DME combustion effects on environmental and they were compared to diesel characteristic as well as the effect of blending DME with liquefied petroleum gas (LPG), conventional diesel fuel and biodiesel were discussed.

scholarly journals KARAKTERISTIK KINERJA KOMPOR GAS LPG MENGGUNAKAN BAHAN BAKAR DME DENGAN VARIASI DIAMETER NOZZLE DAN TEKANAN KERJA KOMPOR

2020 ◽  
Vol 22 (3) ◽  
pp. 199
Author(s):  
Winda Sari Ramadhani ◽  
Intan Paramudita ◽  
Qudsiyyatul Lailiyah ◽  
Prayoga Bakti
Keyword(s):  
Dimethyl Ether ◽  
Liquefied Petroleum Gas

<p><ins cite="mailto:Franz%20Pedrosa" datetime="2020-10-26T10:33">Adanya rencana pemanfaatan DME (<em>dimethyl ether</em>) sebagai sumber energi alternatif di masa yang akan datang, khususnya untuk kebutuhan energi rumah tangga, perlu dibarengi dengan penyiapan infrastruktur di lapangan, mulai dari infrastruktur distribusi sampai pada kelengkapan sarana yang siap dipakai di masyarakat. Makalah ini mengkaji tentang karakteristik kinerja kompor gas </ins><em><ins cite="mailto:Franz%20Pedrosa" datetime="2020-10-26T10:54">Liquefied Petroleum Gas</ins> </em>(<ins cite="mailto:Franz%20Pedrosa" datetime="2020-10-26T10:33">LPG</ins>) <ins cite="mailto:Franz%20Pedrosa" datetime="2020-10-26T10:33">pada saat menggunakan bahan bakar DME 100% berdasarkan variasi diameter <em>nozzle</em> dan tekanan kerja kompor. Pengukuran kinerja kompor berupa tekanan kerja minimum dan maksimum, asupan panas serta efisiensi dilakukan berdasarkan SNI 8660:2018 dengan beberapa modifikasi. Dari hasil kajian terhadap 6 buah kompor yang digunakan dalam penelitian ini, bisa disimpulkan bahwa meskipun kompor gas LPG bisa dipakai juga untuk DME, namun untuk mendapatkan kinerja kompor yang lebih optimal, para produsen kompor masih perlu menentukan ukuran diameter <em>nozzle</em> yang </ins><ins cite="mailto:Franz%20Pedrosa" datetime="2020-10-26T10:33">tepat dan sesuai dengan desain kompornya masing-masing.</ins></p>

scholarly journals Achieving Sustainable Energy Security in Indonesia Through Substitution of Liquefied Petroleum Gas with Dimethyl Ether as Household Fuel

2021 ◽  
Vol 4 (2) ◽  
pp. 71-86
Author(s):  
Natasya Lim ◽  
Vincent Felixius ◽  
Timotius Weslie
Keyword(s):  
Dimethyl Ether ◽  
Methanol Synthesis ◽  
Energy Security ◽  
Coal Gasification ◽  
Direct Synthesis ◽  
Raw Material ◽  
Liquefied Petroleum Gas ◽  
Security Issue ◽  
Combustion Enthalpy ◽  
Dehydration Reactions

Indonesia has been facing an energy security issue regarding Liquefied Petroleum Gas (LPG) consumption. The rapid increase of LPG consumption and huge import have driven the Indonesian government to develop the alternative for LPG in the household sector. Dimethyl ether (DME) is the well-fit candidate to substitute LPG because of its properties similarities. However, discrepancies in the properties, such as combustion enthalpy and corrosivity, lead to adjustments in the application. Coal is a potential raw material to produce DME, especially in Indonesia, known as the fourth-largest coal producer globally. However, the gasification of coal into DME  brings a problem in its sustainability. To compensate for the emission, co-processing of DME with biomass, especially from agricultural residue, has been discovered. Recently, carbon dioxide (CO2) captured from the gasification process has also been developed as the raw material to produce DME. The utilization of CO2 recycling into DME consists of two approaches, methanol synthesis and dehydration reactions (indirect synthesis) and direct hydrogenation of CO2 to DME (direct synthesis). The reactions are supported by the catalytic activity that strongly depends on the metal dispersion, use of dopants and the support choice. Direct synthesis can increase the efficiency of catalysts used for both methanol synthesis and dehydration. This paper intended to summarize the recent advancements in sustainable DME processing. Moreover, an analysis of DME's impact and feasibility in Indonesia was conducted based on the resources, processes, environmental and economic aspects.   Keywords: coal gasification, DME, energy security, LPG, sustainable

Synthesis of liquefied petroleum gas via methanol/dimethyl ether from natural gas

2004 ◽  
Vol 85 (8-10) ◽  
pp. 1151-1164 ◽  
Author(s):  
Yingjie Jin ◽  
Sachio Asaoka ◽  
Xiaohong Li ◽  
Kenji Asami ◽  
Kaoru Fujimoto
Keyword(s):  
Natural Gas ◽  
Dimethyl Ether ◽  
Liquefied Petroleum Gas
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