| 24小時(shí)熱門(mén)版塊排行榜 |
| 2 | 1/1 | 返回列表 |
| 查看: 289 | 回復(fù): 1 | |||
荷舫木蟲(chóng) (小有名氣)
|
[交流]
【求助】文獻(xiàn)中的Butane Elution是什么意思 已有1人參與
|
|
各位大俠,請(qǐng)問(wèn)文章中的這一段催化表征是什么意思?該表征是用來(lái)表征催化劑的transport的行為,本人實(shí)在不懂,請(qǐng)大家多多指點(diǎn) Butane Elution. Elution experiments of butane isomers were carried out at ambient pressure in a quartzmicroreactor (4mmi.d.) coupled to an Omnistar GSD 320 O1 (Pfeiffer Vacuum) quadrupole mass spectrometer (MS) for online gas analysis. The zeolite (50 mg, sieve fraction 150-300 μm) was loaded between two layers of quartz wool and rested over a porous frit. The sample was pretreated in argon (100 cm3 min-1) at 623 K for 30 min and cooled down in the same gas to 363 K. Then, a mixture of 100 Pa n-butane (or i-butane) in Ar (100 cm3 min-1) was introduced. The monitored atomic mass unit was 43 for both alkanes. After about 30 min the MS signal was stable. Then, the flow was switched back to pure argon (100 cm3 min-1) and the elution of the hydrocarbon from the zeolite was followed. |

| 2 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 299求調(diào)劑 +5 | 某某某某位 2026-03-21 | 5/250 |
|
|---|---|---|---|---|
|
[考研] 一志愿國(guó)科過(guò)程所081700,274求調(diào)劑 +3 | 三水研0水立方 2026-03-23 | 3/150 |
|
|
[考研] 一志愿中南大學(xué)化學(xué)學(xué)碩0703總分337求調(diào)劑 +5 | niko- 2026-03-22 | 5/250 |
|
|
[考研] 北科281學(xué)碩材料求調(diào)劑 +8 | tcxiaoxx 2026-03-20 | 9/450 |
|
|
[考研] 323求調(diào)劑 +6 | 洼小桶 2026-03-18 | 6/300 |
|
|
[考研] 269專(zhuān)碩求調(diào)劑 +6 | 金恩貝 2026-03-21 | 6/300 |
|
|
[考研] 求調(diào)劑 +5 | Zhangbod 2026-03-21 | 7/350 |
|
|
[考研] 303求調(diào)劑 +5 | 安憶靈 2026-03-22 | 6/300 |
|
|
[考研] 0856材料專(zhuān)碩353求調(diào)劑 +4 | NIFFFfff 2026-03-20 | 4/200 |
|
|
[考研] 一志愿華中科技大學(xué)071000,求調(diào)劑 +4 | 沿岸有貝殼6 2026-03-21 | 4/200 |
|
|
[考研] 286分人工智能專(zhuān)業(yè)請(qǐng)求調(diào)劑愿意跨考! +4 | lemonzzn 2026-03-17 | 8/400 |
|
|
[考研] 278求調(diào)劑 +9 | 煙火先于春 2026-03-17 | 9/450 |
|
|
[考研] 296求調(diào)劑 +4 | www_q 2026-03-20 | 4/200 |
|
|
[考研] 南昌大學(xué)材料專(zhuān)碩311分求調(diào)劑 +6 | 77chaselx 2026-03-20 | 6/300 |
|
|
[考研] 一志愿天津大學(xué)化學(xué)工藝專(zhuān)業(yè)(081702)315分求調(diào)劑 +12 | yangfz 2026-03-17 | 12/600 |
|
|
[考研] 301求調(diào)劑 +10 | yy要上岸呀 2026-03-17 | 10/500 |
|
|
[考研] 一志愿西安交通大學(xué) 學(xué)碩 354求調(diào)劑211或者雙一流 +3 | 我想要讀研究生 2026-03-20 | 3/150 |
|
|
[考研] 廣西大學(xué)家禽遺傳育種課題組2026年碩士招生(接收計(jì)算機(jī)專(zhuān)業(yè)調(diào)劑) +3 | 123阿標(biāo) 2026-03-17 | 3/150 |
|
|
[考研] 0703化學(xué)調(diào)劑 +4 | 18889395102 2026-03-18 | 4/200 |
|
|
[考研] 考研求調(diào)劑 +3 | 橘頌. 2026-03-17 | 4/200 |
|