Hydrotreating catalystsṣe ipa pataki ninu isọdọtun ti awọn ọja epo, ni pataki ni hydrodesulfurization (HDS) ti naphtha, epo gaasi igbale (VGO) ati Diesel imi-ọjọ imi-ọjọ (ULSD). Awọn oludasọna wọnyi ṣe pataki fun yiyọ imi-ọjọ, nitrogen ati awọn idoti miiran kuro ninu awọn ida epo robi, nitorinaa imudarasi didara ati ibamu ayika ti ọja ikẹhin. Lati ni oye pataki tihydrotreating ayase, o jẹ dandan lati ṣawari sinu ero ti hydrotreating ati ipa ti awọn ayase ninu ilana naa.
Kini ayase hydrotreating?
Hydrotreating ayases jẹ awọn nkan ti o ṣe igbelaruge awọn aati kemikali ti o ni ipa ninu itọju hydrotreating ti awọn ida epo robi. Hydrotreating tọka si akojọpọ awọn ilana katalitiki ti o kan lilo hydrogen lati yọ awọn aimọ kuro ati mu didara awọn ọja epo lọpọlọpọ. Awọn ifilelẹ ti awọn orisi tihydroprocessing pẹlu hydrotreating, hydrocracking, atihydrofinishing, ọkọọkan nilo awọn ayase kan pato ti a ṣe deede si iṣesi ti o fẹ.
![Hydrotreating Catalysts](http://www.catacheme.com/uploads/hds.png)
Naphtha hydrotreating pẹlu yiyọ imi-ọjọ, nitrogen ati awọn aimọ miiran lati pade awọn ilana ayika ti o muna ati ilọsiwaju didara ọja octane. Awọn ayase lo ninunaphtha hydrotreatingni igbagbogbo da lori awọn irin gẹgẹbi koluboti, molybdenum ati nickel ni atilẹyin lori alumina tabi awọn ohun elo agbegbe giga miiran. Awọn olutọpa wọnyi ṣe igbelaruge hydrogenation ati awọn aati desulfurization lati ṣe agbejade imi-ọjọ kekere, naphtha giga-octane ti o dara fun sisọpọ sinu petirolu.
VGO HDS
Igbale epo gaasi(VGO) jẹ ohun kikọ sii pataki fun ọpọlọpọ awọn ilana ti o wa ni isalẹ, pẹlu jijẹ katalitiki ibusun ti omi-omi (FCC) ati hydrocracking. Sibẹsibẹ, VGO nigbagbogbo ni awọn ipele giga ti sulfur ati nitrogen, eyiti o nilo lati dinku lati pade awọn pato ọja. Hydrotreating catalysts apẹrẹ pataki funVGO HDSti ṣe agbekalẹ ni pẹkipẹki lati koju awọn ipo iṣẹ lile ati igbega yiyọ imi-ọjọ ati awọn agbo ogun nitrogen, ti o mu ki o mọ, VGO ti o niyelori diẹ sii fun sisẹ siwaju.
Nitori awọn iṣedede itujade lile, Diesel imi-ọjọ ultra-kekere (ULSD) jẹ ọja pataki ni ile-iṣẹ isọdọtun ode oni. Isejade ti ULSD jẹ itọju hydrotreating lati dinku akoonu imi-ọjọ si awọn ipele kekere-kekere. Awọn ayase ULSD HDS jẹ yiyan ti o ga julọ fun desulfurization lakoko ti o dinku hydrogenation ti awọn paati miiran, ni idaniloju didara ọja ti o nilo ati awọn ibeere ilana ipade.
Awọn ipa ti ayase
Ninu gbogbo awọn ilana itọju hydrotreating wọnyi, awọn ayase ṣe ipa pataki ni igbega awọn aati ti o fẹ lakoko mimu iduroṣinṣin igba pipẹ ati iṣẹ ṣiṣe. Yiyan agbekalẹ ayase, pẹlu iru ati ifọkansi ti awọn irin ti nṣiṣe lọwọ ati awọn ohun elo atilẹyin, ni pataki ni ipa lori ṣiṣe ati yiyan ti iṣesi hydrotreating. Ni afikun, awọn ilọsiwaju ninu imọ-ẹrọ ayase, gẹgẹbi idagbasoke awọn iṣelọpọ irin-igbega tuntun ati awọn ohun elo atilẹyin ilọsiwaju, tẹsiwaju lati mu iṣẹ ṣiṣe ati igbesi aye gigun ti awọn ayase iṣelọpọ hydroprocessing.
ni paripari
Hydrotreating catalystsjẹ pataki si iṣelọpọ mimọ, awọn ọja epo ti o ga julọ. Bi awọn ilana ayika ṣe di okun sii, iwulo fun daradara ati awọn ayase yiyan ninu awọn ilana itọju hydrotreating tẹsiwaju lati dagba. Iwadi ti nlọ lọwọ ati iṣẹ idagbasoke ni imọ-ẹrọ ayase ni ifọkansi lati mu ilọsiwaju siwaju sii ati imuduro ti awọn ayase iṣelọpọ hydroprocessing, ni idaniloju iṣelọpọ ọjọ iwaju ti awọn epo ore ayika ati awọn kemikali petrochemicals.
Akoko ifiweranṣẹ: Jun-06-2024