氨分解带纯化

<p class="MsoNormal" style="margin: 0cm 0cm 0pt 11.95pt; text-indent: 19.75pt; line-height: 23pt; text-align: left; mso-pagination: widow-orphan; mso-char-indent-count: 1.75; mso-line-height-rule: exactly; mso-para-margin-left: 1.14gd;" align="left"><span style="font-size: small;"><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">液氨加热至</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">800</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">～</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">850</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">℃，在镍基催化剂作用下，将氨进行分解，可以得到含</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">75%H2</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">、</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">25%N2</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">的氢氮混合气体</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">:</span></span></p> <p class="MsoNormal" style="margin: 0cm 0cm 0pt; text-indent: 33.9pt; line-height: 22pt; text-align: left; mso-pagination: widow-orphan; mso-char-indent-count: 3.0; mso-line-height-rule: exactly;" align="left"><span style="font-size: small;"><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">本装置工艺流程，有液氨瓶送来的氨经过进氨阀</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">F1</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">，</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">F2</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">进入汽化器（</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">1</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">），汽化器内装有电加热元件，电加热元件对汽化器内的水加热，一般水温控制在</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">45-60<span style="font-family: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial;" lang="EN-US"><span lang="EN-US">℃</span></span><span style="font-family: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial;" lang="EN-US">，液氨在汽化器内得到温水传过来的热量。汽化成气态氨，一般汽化后的<span lang="EN-US">氨压力控制在</span></span>0.4-0.5MPa</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">，氨气经减压阀减压后，压力调到</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">0.05 MPa</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">左右。经过降压后的氨气由耐腐流量计量，从流量计流出的氨气在热交换器中进行热量交换，使氨气温度升高，由分解炉出来的高温混合气被降温，经升温后的氨气进入分解炉进行分解成氢氮混合气，高温混合气进入热交换器，水冷却器降温，然后送到使用地点。</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;"> </span></span></p> <p class="MsoNormal" style="margin: 0cm 0cm 0pt; text-indent: 22.5pt; line-height: 18pt; text-align: left; mso-pagination: widow-orphan;" align="left"><span style="font-size: small;"><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">复式流程，用两只吸附干燥器并联，一只工作，同时另一只可以进行更新处理。相互交替工作和更新，以保证设备连续运行。干燥器在常温下工作，在加温至</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">350</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">℃下冲气更新。更新废气经阀</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">F17</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">后，通过气水分离器放空。</span></span></p> <p class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan;" align="left"><span style="font-size: small;"><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">氢气纯化装置</span></span></p> <p class="MsoNormal" style="margin: 0cm 0cm 0pt; text-indent: 22.6pt; text-align: left; mso-pagination: widow-orphan; mso-char-indent-count: 2.0;" align="left"><span style="font-size: small;"><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">以工业普氢为原料，通过催化除氧，冷凝和吸附两级干燥，以及过滤除尘，可以除去氢中杂质氧，水汽和尘埃颗粒等，获得高纯氢气。</span></span></p> <p class="MsoNormal" style="margin: 0cm 0cm 0pt; text-indent: 30pt; text-align: left; mso-pagination: widow-orphan;" align="left"><span style="font-size: small;"><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">原氢接如原气阀，原氢流量计，除氧器，进行催化除氧。再经冷却器冷凝降温，用冷凝水使气体降温，进入汽水分离器，分离水分。</span></span></p> <p class="MsoNormal" style="margin: 0cm 0cm 0pt; text-indent: 30pt; text-align: left; mso-pagination: widow-orphan;" align="left"><span style="font-size: small;"><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">此时气体可以分别经阀门，进入</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">1</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">组吸附器或</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">2</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">组吸附器吸附干燥，然后经阀门，再经过滤器，由纯氢出口送使用地点。</span></span></p> <p class="MsoNormal" style="margin: 0cm 0cm 0pt; text-indent: 30pt; text-align: left; mso-pagination: widow-orphan;" align="left"><span style="font-size: small;"><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">该复式流程，在一只吸附器工作的同时，另一只吸附器可以进行更新处理，更新用气取部分干燥纯氢，通过更新流量计，阀门送</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">1</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">组吸附器或</span><span style="color: black; font-family: Arial; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;" lang="EN-US">2</span><span style="color: black; font-family: 宋体; letter-spacing: 0.4pt; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;">组吸附器，加热更新吸附剂，更新废气经阀门进入汽水分离器放空，水分经阀门排出。</span></span></p> <p>气体分离设备 <br /><br />氨分解制氢发生装置以液氨为原料，经汽化后将氨气加热到一定温度，在催化剂作用下，氨发生分解成氢氮混合气体，液氨气化预热后进入装有催化剂的分解炉，在一定温度压力和催化剂的作用下氨即分解，产生含氢75％、氮25％的混合气，气体经热交换器和冷却器及流量计后，可进行纯化处理或直接使用。 <br />要使氨气获得充分分解，必须具备下列条件： <br />1、 及时充分地供给大量热源。     <br />2、 较好的催化剂。     <br />3、 液氨的纯度为99.8%以上。</p>