发明名称 |
METHOD FOR PRODUCTION OF PURE ASPHALTENES DURING DEASPHALTING OF HEAVY CRUDE OILS AND NATURALLY OCCURRING BITUMENS |
摘要 |
petroleum processing. SUBSTANCE: heavy crude oils and bitumens are treated with C5-C16-alkanes or gasoline fractions while hydrodynamically affecting crude material by bubbling separated oil-field gas, in particular fireflooding gas, at flow rate 50 to 500 cu.m/min per 1 t crude material. Preliminary treatment reduces water level in crude material to 5 wt %. Then, crude material is deasphalted with 5 to 15-fold volume excess of solvent to give product with 2.8 to 6.2 wt % of occluded adducts when calculated for waterless material. EFFECT: enhanced deasphalting efficiency. 2 tbl, 36 ex
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申请公布号 |
RU2155791(C2) |
申请公布日期 |
2000.09.10 |
申请号 |
RU19980120993 |
申请日期 |
1998.11.16 |
申请人 |
REGIONAL'NYJ NAUCHNO-TEKHNOLOGICHESKIJ TSENTR URALO-POVOLZH'JA |
发明人 |
STARSHOV M.I.;MINGAZETDINOV F.A.;ABDULKHAIROV R.M.;RAKUTIN JU.V.;ZAKIEV F.A. |
分类号 |
C10G21/00;C10G33/06;(IPC1-7):C10G21/00 |
主分类号 |
C10G21/00 |
代理机构 |
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