Otrzymywanie metanolu Przemysłowy p

Otrzymywanie metanolu Przemysłowy proces otrzymywania metanolu bazuje na następujących podstawowych reakcjach: 1. CH 4 + CO 2 = 2CO + 2H 2 + Q (ΔH = + 247 kJ/mol) lub 2. CH 4 + H 2 O = CO + 3H 2 + Q (ΔH = + 206 kJ/mol) Obie reakcje, zarówno suchego jak mokrego reformingu metanu stanowią etap przygotowania gazu do syntezy. Obie reakcje są silnie endotermiczne i przebiegają w wysokich temperaturach, rzędu 800 – 900 o C pod ciśnieniem rzędu 30 ata. Reakcja syntezy: 3. CO + 2H 2 = CH 3 OH + Q jest egzotermiczna a jej ΔH = - 90,73 kJ/mol Tak więc, instalacja syntezy składa się z dwu podstawowych elementów – przygotowania gazu do syntezy, oraz bloku syntezy. Już nawet bez szczegółowej analizy ekonomiczno – technologicznej uwidacznia się zaleta bezpośredniej syntezy metanolu z metanu. Znika bowiem proces przygotowania gazu do syntezy (silnie endotermiczny) co upraszcza samą instalację jak też zmniejsza wydatek energetyczny. Reakcję bezpośredniej syntezy można zapisać następująco: 4. CH 4 + 0.5O 2 = CH 3 OH + Q Reakcja jest silnie egzotermiczna a jej ΔH wynosi –126,406 kJ/mol. Formalnie reakcję tę można zapisać dwuetapowo: CH 4 + 0.5O 2 = CO + 2H 2 Q 1 CO + 2H 2 = CH 3 OH + Q 2 Q = Q 1 + Q 2

結果 (英文) 1:

Receive Industrial methanol process receive methanol is based on the following basic reactions: 1. CH 4 CO 2 = 2CO 2 h 2 Q (ΔH = 247 kJ/mol), or 2. CH 4 H 2 O = 3 h 2 Q (ΔH = 206 kJ/mol) both reactions, both dry as wet reforming of methane is a gas preparation stage for the synthesis. Both reactions are strongly endothermic and run at high temperatures of 800-900 o C at a pressure of 30 ata. Fusion: 3. what 2 h 2 = CH 3 OH Q is an exothermic reaction and ΔH =-90,73 kJ/mol so, Fusion installation consists of two basic elements-the preparation of synthesis gas and block synthesis. Even without a detailed analysis of economic-technological advantage is direct methanol synthesis from methane. Disappears because the preparation process for the synthesis gas (highly endothermic) which simplifies the installation and reduces the energy expenditure. Reaction of the direct synthesis can be written as follows: 4. CH 4 0.5 ° 2 = CH 3 OH Q reaction is strongly exothermic and ΔH is 126,406 kJ/mol. Formally, you can save this reaction in two stages: CH 4 0.5 2 = 2 h 2 Q 1 what 2 h 2 = CH 3 OH Q Q 2 = Q 1 Q 2.

結果 (英文) 2:

Preparation of methanol Industrial process for the preparation of methanol is based on the following basic reactions: 1 CH 4 + CO 2 = 2CO + 2H 2 + Q (ΔH = + 247 kJ / mol) or 2 CH 4 + H 2 O = CO + 3H 2 + Q (ΔH = + 206 kJ / mol) Both reactions, both as a wet dry reforming of methane are the step of preparing a synthesis gas. Both reactions are strongly endothermic and run at high temperatures, of the order of 800 - 900 o C under a pressure of 30 ata. The synthesis reaction: CO 3 + 2H 2 = CH 3 OH + Q is exothermic and the ΔH = - 90.73 kJ / mol Thus, the installation of the synthesis consists of two basic components - the preparation of synthesis gas and the synthesis block. Already, even without a detailed analysis of the economic - technological highlights the advantage of the direct synthesis of methanol from methane. Disappears because the process of preparing synthesis gas (highly endothermic) which simplifies the installation itself as well as reduces energy expenditure. Direct synthesis reaction can be written as follows: 4 CH 4 + 0.5O 2 = CH 3 OH + Q reaction is highly exothermic and the ΔH is -126.406 kJ / mol. Formally, this reaction can be saved in two stages: CH 4 + 0.5O 2 = CO + 2H 2 Q 1 CO + 2H 2 = CH 3 OH + Q 2 Q = Q 1 + Q 2

結果 (英文) 3:

Receive methanol industrial process for obtaining methanol is based on the following fundamental reactions: 1. CH 4 CO 2 = 2CO 2H 2 Q (ΔH = 247 kJ/mol) or 2. CH 4 H 2 O = CO 3H 2 Q (ΔH = 206 kJ/mol) the two reactions, both dry and wet reforming methane gas are preparation stage for fusion.Both reactions are strongly an endothermic and occur at high temperatures, 800 - 900 o C at a pressure of 30 ata. Fusion reaction: 3. At 2H 2 = CH 3 OH Q is egzotermiczna and its ΔH = - 90,73 kJ/mol so, fusion installation consists of two basic elements - prepare gas block for synthesis, and synthesis.Now even without a detailed analysis can be illustrated by the economic and technological advantage direct methanol synthesis of methane. It disappears because the process of preparing the synthesis gas (highly endotermiczny) which simplifies the installation and reduces energy expenditure. Direct synthesis reaction can be written as follows: 4. CH 4 0.5O 2 = CH 3 OH Q response is strongly egzotermiczna and its ΔH is -126,406 kJ/mol. Formally response that can be saved in two stages: CH 4) 0.5A 2) = CO 2H 2 Q 1 AT 2H 2 = CH 3 OH Q 2 Q = Q 1 Q 2