公开(公告)号：US3864205A

公开(公告)日：1975-02-04

申请号：US39190873

申请日：1973-08-27

Applicant: TEXACO INC

Inventor： FRANZ WILLIAM F ,  HESS HOWARD V ,  COLE EDWARD L ,  NEISSER KENNETH E

IPC: C02F9/00 ,  D21C11/12 ,  D21C11/14

CPC classification number: D21C11/125 ,  C02F2103/28

Abstract: In the coking of spent ammonia and low pH sodium base sulfite wood pulping liquors in the liquid phase under pressure, gel-type coke formation is avoided by rapid heating to the coking temperature. Such rapid heating can be accomplished by the use of a metal bath having high heat transfer capacity, by using high pressure-high temperature steam injection or by means of a fluidized bed combustion system. The heating rate used is one of about 110* to about 150*F. per minute in the temperature interval of about 350* to about 550*F.

Abstract translation: 在压力下在液相中废氨和低pH亚硫酸钠木浆制浆液的焦化，通过快速加热至焦化温度避免了凝胶型焦炭的形成。 这种快速加热可以通过使用具有高传热能力的金属浴，通过使用高压 - 高温蒸汽注入或通过流化床燃烧系统来实现。 在约350℃至约550℃的温度间隔中，所用的加热速率为约110℃至约150°F /分钟之间。